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Aisan Kogyo Kabushiki Kaisha patents


Recent patent applications related to Aisan Kogyo Kabushiki Kaisha. Aisan Kogyo Kabushiki Kaisha is listed as an Agent/Assignee. Note: Aisan Kogyo Kabushiki Kaisha may have other listings under different names/spellings. We're not affiliated with Aisan Kogyo Kabushiki Kaisha, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "A" | Aisan Kogyo Kabushiki Kaisha-related inventors


Fuel vapor processing apparatus

A snap-fit attaching device may attach an accessory device to an attachment unit that may be integrated with or connected to a main unit. The attachment device may include a first structural member and a second structural member. ... Aisan Kogyo Kabushiki Kaisha

Intake manifold

An intake manifold made of resin includes a surge tank, a plurality of branch pipes branching off from the surge tank, an egr gas distribution part for distributing egr gas to each of the branch pipes, and an egr cooler for cooling egr gas introduced into the egr gas distribution part. The egr cooler and the egr gas distribution part are made of resin and provided adjacently and integrally. ... Aisan Kogyo Kabushiki Kaisha

Engine system and intake manifold used therefor

An engine system includes an engine provided with a supercharger provided in an intake passage and an exhaust passage, an lpl-type egr device, an intake manifold placed immediately upstream of the engine, an electric throttle device placed in the intake passage upstream of the intake manifold, a fresh air inflow passage introducing fresh air into the intake passage downstream of the electric throttle device, and a fresh air inflow valve to regulate the fresh air amount. The intake manifold includes a surge tank and branch pipes branching off from the surge tank. ... Aisan Kogyo Kabushiki Kaisha

Evaporated fuel processing apparatus

An evaporated fuel processing apparatus is provided with an initializer configured to increase a step number with which a stepping motor is rotated in a valve closing direction, when there is an initialization request for the blocking valve and tank pressure of the fuel tank is in a predetermined pressure range near atmospheric pressure, in comparison with when the tank pressure is out of the predetermined pressure range.. . ... Aisan Kogyo Kabushiki Kaisha

Evaporated fuel processing apparatus

An evaporated fuel processing apparatus is provided with a blocking valve disposed in a vapor passage. The blocking valve has: a valve whose stroke amount is adjusted by a stepping motor; and a relief valve being opened regardless of the stroke amount when tank pressure of a fuel tank is greater than or equal to a predetermined pressure to allow communication between the fuel tank and a canister. ... Aisan Kogyo Kabushiki Kaisha

Fuel supply devices

A fuel supply device includes a fuel filter interposed between an upper outer frame member and a lower outer frame member. The fuel filter includes an upper filter member, a lower filter member and an inner space-defining-member having a portion that is positioned between the upper filter member and the lower filter member. ... Aisan Kogyo Kabushiki Kaisha

Intake system

An intake system may include a purge supply device; an exhaust gas recirculation device; and a pressure adjustor. The purge supply device may include a purge path connected to an intake path of an engine mounted on a vehicle, and be configured to supply evaporative fuel from a fuel tank to the intake path through the purge path. ... Aisan Kogyo Kabushiki Kaisha

Molded adsorbents and canisters containing the molded adsorbents

A molded adsorbent for adsorbing and desorbing fuel vapor includes a solid or hollow columnar shaped body. At least one of the axially opposite end surfaces of the molded adsorbent includes an inclined cut surface portion oriented at an acute angle relative to the longitudinal axis, a concave cut surface portion, or a convex cut surface portion.. ... Aisan Kogyo Kabushiki Kaisha

Full-close abnormality diagnosis apparatus for flow control valve

An egr valve includes a valve seat in a flow passage of a housing, a valve element seatable on the valve seat, a rotary shaft to open or close the valve element, a motor and a speed reducing mechanism, a return spring urging the valve element in a valve closing direction, and an opening-degree sensor to detect an opening degree of the valve element. An electronic control unit (ecu) diagnoses abnormality due to lodging of foreign matter between the valve seat and the valve element during full close. ... Aisan Kogyo Kabushiki Kaisha

Pressure-reducing valve

A pressure-reducing valve includes a valve chamber, a pressure regulating chamber, a partition member, which has a communication hole, and a valve body. The partition member includes the communication hole and a valve seat. ... Aisan Kogyo Kabushiki Kaisha

Fuel cell system

In a fuel cell system, each of an inlet sealing valve and an outlet integration valve is provided with a valve seat including a valve hole and a seat surface formed on a circumferential edge of the valve hole, a valve element formed, on its outer periphery, with a seal surface corresponding to the seat surface, and a motor to move the valve element away from the valve seat upon receipt of electric power supplied from outside. The valve seat is provided with a seal member to seal between the valve element and the valve seat during non-operation of the motor. ... Aisan Kogyo Kabushiki Kaisha

Throttle device and method for manufacturing the same

The throttle device 1 includes a throttle body 10 having an intake passage 11, a throttle valve 12 arranged to rotate within the intake passage 11 for opening and closing the intake passage 11, and a throttle shaft 13 rotatably arranged with respect to the throttle body 10 which is integrally formed with and concomitantly rotatable with the throttle valve 12. A throttle gear 16 is fixed to the throttle shaft 13 and rotated by the actuator. ... Aisan Kogyo Kabushiki Kaisha

Pcv valve mounting structure

A pcv valve mounting structure includes a cylinder head of an engine, an intake manifold coupled with the cylinder head to form a blow-by gas passage. A pcv valve is disposed in the blow-by gas passage. ... Aisan Kogyo Kabushiki Kaisha

Gas fuel supply apparatus

In a fuel injection apparatus, a movable core includes a large-diameter portion and a small-diameter portion, and a fixed core, includes a large-diameter recessed portion and a small-diameter recessed portion in which the large-diameter portion and the small-diameter portion are respectively slidable. While a coil is energized, a first magnetic circuit is formed allowing a magnetic flux to flow between a large-diameter-portion corner of a large-diameter portion and a large-diameter recessed-portion corner of a large-diameter recessed portion, and a second magnetic circuit is formed allowing a magnetic flux to flow between a small-diameter-portion corner of a small-diameter portion and a small-diameter recessed-portion corner of a small-diameter recessed portion.. ... Aisan Kogyo Kabushiki Kaisha

02/01/18 / #20180034086

Fuel cell system

A fuel cell system uses, as an inlet sealing valve, an eccentric valve having a rubber seat provided with a seal part having such a shape as to increase the surface pressure of a portion in contact with a seal surface of a valve element when pressure in an air supply passage rises. Each of an outlet integration valve and a bypass valve is constituted of an eccentric valve basically identical in structure to the inlet sealing valve. ... Aisan Kogyo Kabushiki Kaisha

02/01/18 / #20180034080

Fuel cell system

A fuel cell system comprises a fuel cell for generating electricity with the supply of hydrogen gas and air, a hydrogen supply unit for supplying the hydrogen gas to the fuel cell, an air supply unit for supplying the air to the fuel cell, and a produced water atomizing apparatus for atomizing the produced water produced in association with electricity generation in the fuel cell and emitting the atomized water to the atmosphere. The air supply unit includes an air pump for pressure-feeding the air to the fuel cell, and the produced water atomizing apparatus includes an aspirator to atomize the produced water by use of the air emitted from the air pump as operation air. ... Aisan Kogyo Kabushiki Kaisha

01/11/18 / #20180010699

Sealing valve

A sealing valve is provided with a valve seat including a valve hole, a valve element to open and close the valve hole, and a seal member to seal between the valve element and the valve seat during full closing. The seal member includes a fixed part fixed to the valve seat, a contact part to be brought into contact with a seal surface of the valve element, and a constricted part provided between the fixed part and the contact part. ... Aisan Kogyo Kabushiki Kaisha

12/14/17 / #20170356405

Intake manifold

An intake manifold is provided with a surge tank and a plurality of branch pipes branching from the surge tank, and is made up of a plurality of separate pieces. Each of the branch pipes is provided with an intake outlet for outflow of intake air to each cylinder of an engine. ... Aisan Kogyo Kabushiki Kaisha

12/14/17 / #20170356394

Evaporated fuel treatment device

An evaporated fuel treatment device is provided with an electric-operated valve, a positive-pressure relief valve mechanism and a negative-pressure relief valve mechanism. The electric-operated valve has a valve body for opening/closing a vapor passage allowing a fuel tank and a canister, and adjusts the flow rate by electrical control. ... Aisan Kogyo Kabushiki Kaisha

12/07/17 / #20170350352

Evaporated fuel processing devices

An evaporated fuel processing device for processing evaporated fuel generated in a fuel tank includes a hollow case and an elastic adsorption member press-fit in the hollow case. The elastic adsorption member has a rectangular prismatic block shape. ... Aisan Kogyo Kabushiki Kaisha

11/30/17 / #20170343125

Fuel passage structures

A fuel passage structure of a fuel supply device is configured to supply fuel from a fuel tank to an internal combustion engine. The fuel passage structure includes a passage-forming member that forms a fuel passage and a check valve. ... Aisan Kogyo Kabushiki Kaisha

11/30/17 / #20170341510

Fuel supply devices

A fuel supply device has a cover member which is attached to an opening portion of a fuel tank and a pump unit comprising a pump. The cover member and pump unit are connected via a connecting portion where the pump unit is rotatably connected to the connecting portion. ... Aisan Kogyo Kabushiki Kaisha

11/16/17 / #20170328318

Fuel supply devices

A fuel supply device includes a cover member which is attached to an opening of a fuel tank, a pump unit comprising a pump, and a connecting portion for connecting the cover member and the pump unit. The pump unit is connected to the connecting portion so as to be relatively movable to the cover member. ... Aisan Kogyo Kabushiki Kaisha

10/26/17 / #20170306906

Fuel supply device

A fuel supply device may include a pump case configured to accommodate a fuel pump, a reserve tank, and an elastic support member configured to elastically support the pump case with respect to the reserve tank. The elastic support member is connected to the pump case and the reserve tank via a first connection device and a second connection device, respectively. ... Aisan Kogyo Kabushiki Kaisha

10/26/17 / #20170305266

Evaporated fuel processing device

An evaporated fuel processing device includes a flow control valve that is used as a valve to be installed in a pathway connecting a canister and a fuel tank. The device includes an inner pressure sensor configured to detect a pressure in an interior space of the fuel tank as an inner pressure, a valve-opening start position determination means configured to calculate a second order differential value of the inner pressure after a valve opening operation of the flow control valve is started and to determine a valve opening position of the flow control valve as a valve-opening start position when the second order differential value is equal to or greater than a first predetermined value, and a learning means configured to store the valve-opening start position as a learned value that is used when a valve-opening control of the flow control valve is performed.. ... Aisan Kogyo Kabushiki Kaisha

10/26/17 / #20170304749

Fuel filter device

A fuel filter device includes a bag-shaped filter member filtering fuel that is drawn into a fuel pump, an inner frame member retaining the filter member in an expanded state, and a mounting member connected to the inner frame member and serving to communicate an internal space of the filter member with an outside. A valve chamber is defined by the inner frame member and the mounting member, and a check valve serving to prevent backflow of fuel is disposed in the valve chamber. ... Aisan Kogyo Kabushiki Kaisha

10/12/17 / #20170292477

Vaporized fuel processing apparatus

A vaporized fuel processing apparatus in which, if an internal pressure of a fuel tank is high when refueling, a closing valve opens before a refueling cap opens, so that vaporized fuel is flown to a canister via a path with a float valve to lower the internal pressure of the tank. The apparatus includes a refueling switch for instructing a start of refueling to the fuel tank, an internal pressure sensor for detecting a space pressure inside the tank, and a closing valve control means for, if the refueling start signal is output from the refueling switch and the internal pressure of the fuel tank is higher than a set pressure, opening the closing valve within a range in which the float valve does not operate, and increasing the valve-opening speed of the closing valve in accordance with a reduction in the internal pressure of the fuel tank.. ... Aisan Kogyo Kabushiki Kaisha

10/05/17 / #20170285667

Pressure regulating valve

In a pressure regulating valve, a piston is provided, in an end on a side closer to a seat, with a recessed portion opening on the side closer to the seat, a valve element including: a tip portion contactable with the seat; a columnar retaining part inserted in the recessed portion; and a press-fit portion protruding radially outward from an outer peripheral surface of the retaining part and being press-fitted in an inner peripheral surface of the recessed portion. The press-fit portion has a spherical shape.. ... Aisan Kogyo Kabushiki Kaisha

10/05/17 / #20170284321

Evaporated fuel processing devices

An evaporated fuel processing device utilizing a flow rate control valve as a valve positioned in a passage connecting a fuel tank with a canister. The device includes: a valve opening means for opening the flow rate control valve at a constant speed; an internal pressure sensor; a valve opening start position detecting means for acquiring a second derivative value of the internal pressure after a valve opening motion of the flow rate control valve has started and for detecting a valve opening start position of the flow rate control valve based on the second derivative value; a learning means for storing the valve opening start position; and a valve opening speed change means for changing a valve opening speed of the valve opening means based on a variation speed of the internal pressure before the valve opening motion of the flow rate control valve has started.. ... Aisan Kogyo Kabushiki Kaisha

10/05/17 / #20170284317

Evaporated fuel processing device

An evaporated fuel processing device configured to adsorb evaporated fuel in a fuel tank to a canister and to feed the adsorbed evaporated fuel to an engine. The device includes an inner pressure sensor configured to detect a pressure in an interior space of the fuel tank, a valve-opening start position determination means configured to change the stroke amount of a flow control valve from an initial condition and to determine a valve-opening start position of the flow control valve based on a requirement that a range of variation of the inner pressure is equal to or greater than a predetermined value, a learning means configured to store the valve-opening start position, and a prohibition means configured to prohibit the valve-opening start position determination means from determining the valve-opening start position when the inner pressure falls within a predetermined pressure range relative to the atmospheric pressure.. ... Aisan Kogyo Kabushiki Kaisha

10/05/17 / #20170282706

Vaporized fuel processing apparatus

In a vaporized fuel processing apparatus in which fuel vapor within a fuel tank is adsorbed by a canister, the adsorbed vaporized fuel is drawn to an engine, a closing valve is provided connecting the fuel tank and the canister for controlling communication between the fuel tank and the canister, and a purge valve is provided connecting the canister and the engine for controlling communication between the canister and the engine. The vaporized fuel processing apparatus includes an internal pressure sensor configured to detect a pressure of a space within the fuel tank as an internal pressure, and a closing valve control means configured to open the closing valve for supplying an atmospheric pressure to the fuel tank via the canister when the sensor detects that the internal pressure of the fuel tank is negative, while the purge valve is closed. ... Aisan Kogyo Kabushiki Kaisha

09/28/17 / #20170276105

Fuel supply devices

A fuel supply device includes a cover member attached to an opening of a fuel tank, a pump unit including a pump, and a connecting portion which connects the cover member and the pump unit. The pump unit is connected so as to be relatively movable with respect to the connecting portion when a connecting shaft which is formed as part of one of the connecting portion or the pump unit, is inserted into the connecting hole formed as part of the other of the two. ... Aisan Kogyo Kabushiki Kaisha

09/21/17 / #20170268471

Fuel supply devices

A fuel supply device has a cover member which is attached to an opening of a fuel tank, a pump unit comprising a pump, and a connecting portion configured to connect the cover member and the pump unit. A connecting shaft which is formed to one of the two connected members of the connecting portion is inserted into a connecting hole which is formed to the other of the two such that the pump unit is connected to be relatively movable to the connecting portion. ... Aisan Kogyo Kabushiki Kaisha

09/21/17 / #20170268470

Fuel supply devices

A fuel supply device has a cover member which is attached to an opening of a fuel tank, a pump unit provided with a pump, and a connecting portion for connecting the cover member and the pump unit. The fuel supply device has a connecting shaft which is formed on either one of the connecting portion or the pump unit, and a connecting hole which is formed on the other. ... Aisan Kogyo Kabushiki Kaisha

08/31/17 / #20170248106

Fuel supply devices

A fuel supply device includes a cover, a base including a base main body, and a connecting portion configured to connect the cover and the base. The base main body and the connecting portion are connected by a connecting shaft comprising a shaft portion and a bulge portion, a connecting hole formed so as to continuously extend an engagement region and an insertion region, and a stopper piece capable of limiting a movable range of the shaft portion located within the engagement region towards the insertion region. ... Aisan Kogyo Kabushiki Kaisha

08/31/17 / #20170248105

Fuel supply devices

A fuel supply device includes a pump unit with a fuel pump that has a rotary body rotating about a rotary shaft and a load receiving portion, configured to receive the load of the pump unit. A connecting portion is provided for connecting the pump unit to the load receiving portion such that the pump unit is suspended by the load receiving portion. ... Aisan Kogyo Kabushiki Kaisha

08/10/17 / #20170226968

Gas distribution apparatus

A gas distribution unit includes four egr inflow ports connected one to each of a plurality of branch pipes of an intake unit provided with a collecting pipe and the branch pipes, a egr chamber located upstream of and connected to the egr inflow ports, and a branch passage part located upstream of and connected to the egr chamber to uniformly distribute egr gas introduced through a gas inflow port into the egr chamber.. . ... Aisan Kogyo Kabushiki Kaisha

06/22/17 / #20170175662

Abnormality diagnosis device for blow-by gas returning apparatus

A blow-by gas returning (bgv) apparatus includes a blow-by gas storage unit, a throttle device placed in an intake passage, a bgv passage for allowing blow-by gas to flow to the intake passage downstream of the throttle device for recirculation, and a pcv valve for regulating a flow rate of blow-by gas. An abnormality diagnosis device includes an air flow meter to detect an intake amount in the intake passage upstream of the throttle device and an electronic control unit (ecu) for diagnosis. ... Aisan Kogyo Kabushiki Kaisha

06/08/17 / #20170159616

Evaporated fuel treatment devices

An evaporated fuel treatment device includes a canister, an evaporated fuel outflow detecting means, a pressure sensor, a pressure change detecting means, and a pressure sensor failure determining means. The canister adsorbs evaporated fuel from a fuel tank, and purges the adsorbed fuel to an engine. ... Aisan Kogyo Kabushiki Kaisha

06/01/17 / #20170153653

Pressure reduction valve

A pressure reduction valve includes: a housing; an inlet and an outlet provided in the housing; a piston movable in the housing; a rod extending from the piston toward the inlet; a rod sliding part where the rod slides in the housing; a valve element provided in the rod; a valve seat to be seated with the valve element; a valve chamber formed around the valve element downstream the valve seat; a pressure control chamber provided between the piston and the housing downstream of the piston to communicate with the outlet; a passage formed in the rod and the piston; a spring to urge the piston and the rod to separate the valve element from the valve seat; and a sealing member provided in the rod sliding part. A wear ring is provided upstream of the seal member to narrow a clearance between the rod sliding part and the housing.. ... Aisan Kogyo Kabushiki Kaisha

06/01/17 / #20170152958

Pressure control valve

A pressure control valve has a housing including a valve seat and defining a fluid path therein, a valve body including a support member and a valve member, and a spring biasing the valve body toward the valve seat in a valve closing direction. The valve member is an integrated molding including a seal member and a reinforcement member that reinforces the seal member. ... Aisan Kogyo Kabushiki Kaisha

06/01/17 / #20170152953

Double eccentric valve

A double eccentric valve includes: a drive mechanism which produces drive force for rotating a rotation shaft in a direction to open the valve; a drive force receiving unit provided integrally with the rotation shaft to receive the drive force; a bearing located between a valve element and the drive force receiving unit along the center axis of the rotation shaft to support the rotation shaft; and a return spring which produces return spring force for rotating the rotation shaft in a valve closing direction. The double eccentric valve is configured to generate a separating-direction biasing force which inclines the rotation shaft with the bearing at a fulcrum to bias the valve assembly away from a valve seat, the force being caused by the return spring force when the drive mechanism is not operated and acting in a direction perpendicular to the center axis of the bearing.. ... Aisan Kogyo Kabushiki Kaisha

05/18/17 / #20170141634

Stator and brushless motor

Each of the coils provided in a stator includes a wire introducing portion where a wire is introduced into a groove, an adjusting portion including the wire wound within the groove, and a plurality of wire layers each of which are aligned adjacent one another along an extending direction of a tooth. Among the plurality of wire layers, wires located on a periphery side-end in the odd-numbered wire layers are separated from an inner circumferential surface of the periphery by a half pitch.. ... Aisan Kogyo Kabushiki Kaisha

05/18/17 / #20170138324

Fuel filter

A fuel filter includes a pair of filter members facing each other and a frame. Outer peripheral edges of the filter members are closed. ... Aisan Kogyo Kabushiki Kaisha

05/11/17 / #20170130862

Pressure reducing valve

A pressure reducing valve includes a valve seat, a valve element configured to contact with or separate from the valve seat to close or open a flow passage, a piston to move the valve element into or out of contact with the valve seat, and a spring urging the piston in a valve opening direction of the valve element. The pressure reducing valve further includes a rattling prevention part for preventing rattling which may occur between the piston and the spring due to unevenness of a polished surface of the spring.. ... Aisan Kogyo Kabushiki Kaisha

04/27/17 / #20170115673

Pressure regulating valve

A pressure regulating valve to regulate a pressure of fuel gas includes a valve seat, a valve element movable into or out of contact with the valve seat to shut off or allow a flow of fuel gas, and a piston placed facing the valve element by interposing the valve seat and being located downstream of the valve element in a flowing direction of the fuel gas. The pressure regulating valve further includes a holder placed more upstream than the valve element in the flowing direction of fuel gas. ... Aisan Kogyo Kabushiki Kaisha

01/19/17 / #20170018788

Fuel supply unit

Each injector is placed and held between an inflow block and an outflow block. An inlet pipe of each injector is connected with an inlet hole of the inflow block via a sealing member, and an outlet pipe of each injector is connected with an outlet hole of the outflow block via a sealing member. ... Aisan Kogyo Kabushiki Kaisha

01/05/17 / #20170003265

Sensor device

A sensor device 1 includes a fuel property sensor 5 configured capable of detecting a property of fuel that is ejected from a fuel pump 4 in a feel tank 2; a guiding line 12 configured to guide fuel ejected from the fuel pump 4 to the fuel property sensor 5; and a relief valve 21 configured to allow fuel to flow out of the guiding line 12 when a pressure of fuel in the guiding 12 becomes equal to or higher than a predetermined pressure.. . ... Aisan Kogyo Kabushiki Kaisha

01/05/17 / #20170003241

Sensor device

A sensor device 1 includes a fuel passage through which fuel ejected from a fuel pump 4 in a fuel tank 2 flows; and detection electrodes 61 configured to make contact with fuel flowing through the fuel passage to detect a concentration of alcohol contained in the fuel (a first property of the fuel), and a throttle 25 configured to resist a flow of the fuel on a downstream side of the detection electrodes 61 is provided in the fuel passage.. . ... Aisan Kogyo Kabushiki Kaisha

01/05/17 / #20170002771

Fuel vapor processing apparatus

A fuel vapor processing apparatus may include a first adsorption chamber, a second adsorption chamber and a third adsorption chamber that are connected in series with respect to a flow of gas. A ratio of a length to a diameter of the second adsorption chamber may be larger than that of the first adsorption chamber. ... Aisan Kogyo Kabushiki Kaisha

01/05/17 / #20170002770

Fuel vapor processing apparatus

A fuel vapor processing apparatus may include a first adsorption chamber, a second adsorption chamber and a third adsorption chamber that are arranged in series with respect to a flow of gas. A ratio of a length to a diameter of the second adsorption chamber may be larger than a ratio of a length to a diameter of the first adsorption chamber. ... Aisan Kogyo Kabushiki Kaisha








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