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Trane International Inc
Trane International Inc_20100114

Trane International Inc patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "T" | Trane International Inc-related inventors


 new patent  Accumulator for charge management

Embodiments of an accumulator for charge management are described. A fluid compression system, comprising an accumulator fluidly connected to an evaporator via a spillover port. The spillover port directs working fluid received from the evaporator to be collected and stored in the accumulator, where the stored working fluid is stored... Trane International Inc

 new patent  Return waterbox for heat exchanger

A return waterbox for a heat exchanger, such as a shell-and-tube heat exchanger, is provided. The return waterbox may include an insert configured to direct a fluid flow(s) in the return waterbox. In some embodiments, such as in a two-pass heat exchanger, the insert can be configured to receive water... Trane International Inc

Occupancy sensing and building control using mobile devices

Apparatus, systems and methods for ascertaining the occupancy of a building are presented. The building is divided into one or more control zones which correspond to physical areas of the building associated with controllable modules, such as HVAC units, lighting, irrigation, or other environmental features such as fountains, music, video,... Trane International Inc

Electric motor with harmonic shunting

Disclosed is a hermetic AC electric motor that includes harmonics shunting such that high frequency harmonics are shunted from the AC electric motor without the use of one or more high frequency filters in the associated motor drive. A related method of operating an AC electric motor includes shunting high... Trane International Inc

Systems and methods for provisioning components of an hvac system

Systems and methods for provisioning a component of an HVAC system are presented. A provisioning device, such as a smartphone, is used to scan HVAC component information obtained from a tag on each component and wirelessly transfers the information to a thermostat or HVAC system controller. The thermostat or system... Trane International Inc

Methods and systems for controlling a chiller system having a centrifugal compressor with a variable speed drive

Methods and systems for controlling a chiller system to achieve control stability while maintaining optimum efficiency. Particularly, methods and systems for controlling a centrifugal compressor speed and an inlet guide vane position that establishes three distinct regions in the control path: (i) during initial unloading from full load, the inlet... Trane International Inc

Intermediate discharge port for a compressor

A screw compressor includes a compressor housing defining a working chamber, the housing including a plurality of bores; a first rotor having helical threads, the first rotor being housed in a first of the plurality of bores; a second rotor having helical threads intermeshing with the helical threads of the... Trane International Inc

Screw compressor drive control

An embodiment of method used to control operation of a screw compressor of a refrigeration system may include receiving status signals regarding operation of the screw compressor of the refrigeration system. The method may further include determining an operating point of the screw compressor based upon the received status signals,... Trane International Inc

Method of fragmenting a message in a network

Embodiments described herein provide a method of fragmenting a large message into, for example, numbered packets for sending the message in a packet based communication system, such as in a ZigBee wireless network. Each packet may have a predetermined size and may include a MAC address, a network header of... Trane International Inc

Heat exchanger refrigerant drain

A combination refrigeration displacement and drain device is disclosed that can be mounted within a heat exchanger, such as a shell and tube heat exchanger, which may be used for example as a heat exchanger in a chiller unit, which may be used in an HVAC or refrigeration system. One... Trane International Inc

Lubricant blends to reduce refrigerant solubility

Compositions, methods, systems, and applications herein are directed to lubricant blends that balance solubility and viscosity of a refrigerant, where in some cases the lubricant blends herein help reduce solubility of a refrigerant. A lubricant blend includes a mixture of two or more different types of lubricants to reduce refrigerant... Trane International Inc

Dehumidifier for high airflow rate systems

An HVAC system includes a dehumidifier having an evaporator, a condenser, a compressor, and an expansion device. The dehumidifier is disposed in at least one of a main supply duct, a main return duct, and an indoor unit of the HVAC system. The dehumidifier comprises no application specific air moving... Trane International Inc

Method of associating a diagnostic module to hvac system components

Systems and methods are disclosed for validating the installation and operation of a fault detection and diagnostic module that monitors a component of an HVAC system. A remote diagnostic server is in operative communication with the HVAC system, and with the fault detection and diagnostic module. A user device communicates... Trane International Inc

Time-constrained control of an hvac system

An HVAC system includes an indoor unit, an outdoor unit, a thermostat, and a remote control device. The indoor unit comprises a first variable speed drive (VSD) to control a speed of HVAC rotary components within the indoor unit, and the outdoor unit comprises a second VSD to control a... Trane International Inc

Packaged hvac unit with secondary system capability

Disclosed is a system for independently controlling the climate within a primary zone and at least one secondary zone of a building. The system comprises a primary packaged unit comprising a primary indoor coil and a primary variable speed indoor fan blowing over the primary indoor coil to serve the... Trane International Inc

Sleep current failure detection

HVAC components having improved efficiency are described. In one embodiment, excessive sleep current draw in a battery-powered device having a microcontroller is detected by measuring a voltage drop across a MOSFET device coupled in a forward-conducting orientation in series between the battery and the microcontroller, causing a transistor to conduct... Trane International Inc

Multi-functional heat pump apparatus

A system and related methods for heating, cooling, and dehumidifying air is disclosed. In an embodiment, the system includes an indoor unit having a first coil assembly and a second coil assembly. When the system is operating in a cooling mode or a heating mode, the first coil and second... Trane International Inc

Systems and methods to detect heater malfunction and prevent dry burning

A heater, e.g. an anti-freezing heater, is disclosed. The heater can be configured to set off an alarm when a heating element is broken or malfunction. The heater can also be configured to connect the heating element to a relatively low voltage when the heating element may experience a dry... Trane International Inc

Heat exchanger coil with offset fins

Apparatuses, systems and methods are directed to heat exchangers that are made of microchannel tubes and that have offset fins of various geometries and density. The heat exchanger coils can be implemented in various refrigeration and/or heating, ventilation, and air conditioning (HVAC) units or systems thereof.... Trane International Inc

Mounting clip

A mounting clip that can be used to mount a heat exchanger to a housing, for example, in a HVAC system is disclosed. The mounting clip may include a receiver portion configured to receive, for example, an end portion of the heat exchanger. The mounting clip may also include a... Trane International Inc

Aligning a centerline of a motor shaft in a fan assembly

Aligning the centerline further includes creating, from the selected motor and the matching motor plate, a motor-plate assembly that has a resulting height, where the resulting height of the motor-plate assembly corresponds to a particular height of a direct drive fan assembly, and aligning the centerline of a motor shaft... Trane International Inc

Refrigerant management in a hvac system

Methods and systems to manage refrigerant levels in a chiller system are provided. An evaporator of the chiller system may be configured to have a spill over port allowing oil containing refrigerant to spill over through the spill over port. The spill over port may be positioned at a place... Trane International Inc

Methods of controlling fan capacity and coil capacity in hvac systems

Methods to regulate a discharge fan and a coil of a HVAC system are described. The method may include regulating a discharge air temperature of the cooling/heating coil of the HVAC system while maintain the discharge fan at a low capacity setting. The method may also include maintaining the coil... Trane International Inc

Heat pump

Embodiments as disclosed herein are directed to a heat pump that employs at least two different refrigerants, each of which is optimized for either a cooling operation mode or a heating operation mode. The embodiments as disclosed herein can help increase the capacity and/or efficiency of a heat pump in... Trane International Inc

Refrigerant cooling and lubrication system with refrigerant vapor vent line

Generally, apparatuses, systems, and methods are described to vent refrigerant vapor from the refrigerant pump line using a vent line, such as during priming of the pump and/or during a startup of the compressor, directed to a relatively reduced volute casing mass of the refrigerant pump, and/or directed to returning... Trane International Inc

Oil return management in a hvac system

Methods, systems, and apparatuses are described to help manage oil return such as in a chiller system of a HVAC system. A refrigerant/oil mixture can be directed out of the evaporator into an oil return heat exchanger that is configured to help vaporize a refrigerant portion of the refrigerant/oil mixture.... Trane International Inc

Multi-coil microchannel evaporator

Apparatuses, systems and methods implementing a multi-coil heat exchanger are directed to providing good heat transfer performance, capacity, and efficiency, and while reducing pressure drop through multi-coil microchannel evaporators. The multi-coil heat exchanger in some examples is a multi-coil microchannel evaporator. The multi-coil microchannel evaporator can be implemented in a... Trane International Inc

Lubricant separator for a heating, ventilation, and air conditioning system

A lubricant separator is disclosed. The lubricant separator can cause lubricant which is entrained with a heat transfer fluid (e.g., a lubricant—heat transfer fluid mixture) to coalesce and fall (e.g., via gravity) into a bottom portion of a lubricant tank assembly. The lubricant separator can also reduce a velocity of... Trane International Inc

Controls and operation of variable frequency drives

Unique apparatuses, methods, and systems of opposing, limiting, and/or preventing undesired or un-commanded compressor rotation are disclosed. One exemplary embodiment is an HVACR system comprising a variable frequency drive configured to drive an electric motor to rotate a screw compressor or scroll compressor. A controller is configured to monitor various... Trane International Inc

Multi-split hvac system

A heating, ventilation, and/or air conditioning (HVAC) system has a first variable refrigerant flow outdoor unit, a first ducted variable speed indoor unit configured to selectively exchange refrigerant with the first variable refrigerant flow outdoor unit, and a second indoor unit configured to selectively exchange refrigerant with the first variable... Trane International Inc

Increasing component life in a variable speed drive with stator heating

An apparatus and method for extending component life in a motor drive having a stator heating mode is disclosed. The current supplied to stator windings is cycled through a set of primary stator power transistors to increase the overall lifespan of the drive, thus preventing premature failure of the stator... Trane International Inc

Device and setting network and channel information in a network device

Devices and methods use an Extended Permanent Account Number Identification (EPID) of a mesh network (e.g., ZigBee) to include in the EPID a network information, a network channel information (e.g., 802.15.4 channel), and/or other data. The devices and methods allows a node to use the EPID to identify a desired... Trane International Inc

System and controlling a system that includes fixed speed and variable speed compressors

A system and method for controlling a system that includes fixed speed and variable speed compressors are described. The method generally allows the system, for example, a heating, ventilating, and air condition (HVAC) system that includes fixed speed and variable speed compressors, to maximize unit modulating capability. The method allows... Trane International Inc

Double-ended scroll compressor lubrication of one orbiting scroll bearing via crankshaft oil gallery from another orbiting scroll bearing

A scroll compressor orbiting scroll bearing lubrication system includes a scroll compressor crankshaft having a lubricating fluid gallery extending therethrough between a first stage orbiting scroll and a second stage orbiting scroll. The first stage employs an orbiting scroll radial bearing and an orbiting scroll hydrodynamic thrust bearing, while the... Trane International Inc

Electronic expansion device

An electronic expansion device includes a main body having inlet and outlet side faces; an inlet disposed on the inlet side face; an orifice formed in the main body between the inlet side face and the outlet side face; a flow path fluidly connecting an inlet side of the orifice... Trane International Inc

06/22/17 / #20170176074

Suction conduit flow control for lubricant management

A system includes first and second compressors arranged in parallel, a condenser, expansion device, evaporator, and flow control device fluidly connected. The first compressor includes a first lubricant sump and the second compressor including a second lubricant sump. A lubricant transfer conduit fluidly connects the first lubricant sump and the... Trane International Inc

06/22/17 / #20170176076

System and dynamically determining refrigerant film thickness and dynamically controlling refrigerant film thickness at rolling-element bearing of an oil free chiller

Methods are directed towards dynamically determining refrigerant film thickness at the rolling-element bearing and for dynamically controlling refrigerant film thickness at the rolling-element bearing. Further, an oil free chiller system is configured for dynamically determining refrigerant film thickness at the rolling-element bearing of the oil free chiller system, wherein the... Trane International Inc

06/22/17 / #20170179859

Magnet degradation and damage controls and diagnostics for permanent magnet motors

Techniques for motor magnet degradation controls and diagnostics are disclosed. An exemplary technique determines q-axis current, d-axis current, q-axis voltage, and/or d-axis voltage of a permanent magnet motor based upon sensed current and voltage information of the motor. This information is utilized to determine flux information. The flux information is... Trane International Inc

06/15/17 / #20170167769

Axial thrust control for rotary compressors

Systems and methods are used to control operation of a rotary compressor of a refrigeration system to limit or prevent movement of rotors due to axial thrust loading resulting from rapid changes in speed of the rotors of the compressor. The operational profile of the motor is controlled to maintain... Trane International Inc

05/25/17 / #20170146272

Refrigerant cooling and lubrication system with refrigerant source access from an evaporator

Generally, apparatuses, systems, and methods are described that are directed to accessing liquid refrigerant from an evaporator to source a refrigerant pump and pump line to cool and lubricate such moving parts that may be part of the compressor, for example the compressor motor and the compressor bearings, and/or for... Trane International Inc

05/18/17 / #20170137681

Refrigerant compositions

Refrigerant compositions are described, which can be used for example, in refrigeration, air conditioning, and/or heat pump systems which for example, can be incorporated into a heating, ventilation and air conditioning (HVAC) system or unit. The refrigerant composition includes an amount of a R125 refrigerant, an amount of a R32... Trane International Inc

04/20/17 / #20170108293

Crimp joint with o-rings enhanced with adhesive and incorporated to manifold feeder tubes

Systems and methods are disclosed that include providing a heating, ventilation, and/or air conditioning (HVAC) system with a spine fin heat exchanger comprising elliptical heat exchanger tubes joined to elliptical feeder tubes extending from the heat exchanger manifold by a crimp joint that is configured such that the heat exchanger... Trane International Inc

04/13/17 / #20170102723

Hvac thermostat

Improvements to an HVAC thermostat include a fuel control module that estimates a rate of fuel usage by the HVAC system and issues a warning and optionally schedules a fuel delivery or solicits a fuel delivery bid when the on-site fuel supply drops beneath a predetermined level, a nightlight module... Trane International Inc

04/06/17 / #20170097182

Fluid management in a hvac system

Embodiments of a spill over tank for an evaporator of a HVAC system are described. The spill over tank may be configured to receive a refrigerant directed out of the evaporator. The spill over tank may be configured to have an outlet directing refrigerant in the spill over tank out... Trane International Inc

03/30/17 / #20170089620

Refrigerant cooling and lubrication system

Generally, apparatuses, systems, and methods are described to prime a refrigerant pump by decoupling or shielding from a condenser operation, such as for example the condenser water pump, so that liquid refrigerant can be appropriately sourced from the condenser and/or the evaporator using flow control device(s) such as a source... Trane International Inc

03/02/17 / #20170059188

Inclined heat exchanger with tapered ends

Systems and methods are disclosed that include providing a heating, ventilation, and/or air conditioning (HVAC) system with a tapered end heat exchanger (TEHE) having a first tapered end disposed at a lower end of the TEHE with respect to an incoming airflow and on the downstream face of the TEHE... Trane International Inc

02/23/17 / #20170050193

Air cleaning systems and methods

An HVAC system having an air cleaner, a fan that selectively generates an air flow at least partially through the air cleaner, and a controller that establishes a functional relationship between an air flow related criterion and a correlated power level setting of the air cleaner, determines an air flow... Trane International Inc

02/16/17 / #20170045257

Heat exchange assembly in an air to air heat exchanger

A heat exchange assembly in an air to air heat exchanger includes an arrangement, construction, and/or configuration of a combination of latent heat exchangers and sensible heat exchangers. The heat exchange assembly can minimize footprint required for the air to air heat exchanger, e.g. air handler, by avoiding the need... Trane International Inc

02/16/17 / #20170046766

Enhanced selection tool for hvac system components

A product selection tool is disclosed that utilizes input from consumers and third party data sources to dynamically enhance the selection of HVAC components. Specific and estimated data characterizing existing HVAC components is used to identify suitable replacement HVAC components based on type, size, energy efficiency, and other system requirements... Trane International Inc

02/09/17 / #20170038167

Heat exchanger with enhanced airflow

Systems, apparatuses, and methods described herein are directed to a heat exchange tube structure and an arrangement of heat exchange tubes that enhance or help promote fluid flow through a heat exchanger. Bend portions of heat exchange tubes may be structured and configured to allow for gaps so that fluid... Trane International Inc

02/02/17 / #20170030623

Multi-stage control for electromechanical heating, ventilation, and air conditioning (hvac) unit

A control system for a heat transfer circuit, an HVAC unit containing a heat transfer circuit, and a method of retrofitting an HVAC unit are described. The control system includes a thermostat having a first cooling stage signal output terminal and a second cooling stage signal output terminal; a controller... Trane International Inc

01/26/17 / #20170023955

Hvac system with improved control switching

An HVAC switching circuit may comprise a current source circuit charging a capacitor used to power an HVAC DC power relay coil. The power relay coil terminal is connected to an activation control circuit which comprises at least one of (1) each of (a) a threshold circuit which activates a... Trane International Inc

01/19/17 / #20170016869

Energy management for sensors

The present disclosure is directed to a method for reducing power consumption of a sensor. The method includes determining if a predetermined condition has been met to change at least one of a sensing rate or a sensor resolution, and changing at least one of the sensing rate or sensor... Trane International Inc

01/12/17 / #20170010017

Systems, aparatuses, and methods of air circulations using compact economizers

An air circulation circuit including components that are in fluid communication. An air return connection is disposed downstream of the indoor space wherein the air return connection is configured to deliver an air stream from the indoor space to an economizer. The economizer is disposed downstream of the air return... Trane International Inc

01/05/17 / #20170006111

Active device management for use in a building automation system

A building automation system (BAS) comprising a plurality of end devices, at least one communication network, and a server engine comprising a communication state manager for actively managing the state of various devices in building automation system and an associated reconnect manager to reestablish communication with off-line devices. The communication... Trane International Inc








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