Rolls-royce North American Technologies Inc.

Rolls-royce Corporation

Eric Sean Donovan

Eugene Charles Jansen

Timothy Unton

Keith D Noderer

Michael Head

James Carl Loebig

Erik Alexander Munevar

Craig English

Tim Unton

Ken S Rubel

Daniel Kent Vetters

Douglas J Snyder

Michael Karam

Eric Duane Schneider

James Christopher Muskat

Todd S Taylor

Michael Stephen Krautheim

Craig E Heathco

Emil R Dejulio

Russell E White

Brian Thomas Spangler

Steven Wesley Tomlinson

Aric Acius

Donald G Chouinard

Mike Nesteroff

Daniel J Vonderwell

William Daniel Feltz

Peter Gegg

Nader Maharmeh

Ryan Young

Ken Rubel

A power electronic assembly includes a power electronic and a cold plate. The power electronic is configured to be powered by electric energy and to generate waste heat from the electric energy. The cold plate include polymeric material and is configured to elastically deform to uniformly cover the power electronic and transfer away the waste heat generated by the power electronic.

Polymeric cold plate for thermal management of power electronics

A thermal battery system includes a vessel comprising a phase change material and a gas; a heat exchanger configured to transfer heat to and/or from the phase change material; a temperature sensor configured to detect an indication of a temperature of the gas; a pressure sensor configured to detect an indication of a pressure of the gas; and a processor configured to determine a state of charge of the thermal battery system from the indication of the pressure and the indication of the temperature of the gas.

Methods and systems for measuring state of charge of a phase change material thermal battery

An electronics cabinet cooling system may include multiple cabinet heat exchangers mounted at an air discharge of respective different electronic cabinets. Heat from a flow of air heated by electronic components in the electronic cabinets may be received by respective cabinet heat exchangers. A liquid refrigerant flowing through the heat exchangers in parallel may be at least partially changed from liquid to gas and absorb the heat from the flow of air. A three-way tee in a common outlet header downstream from the cabinet heat exchangers may direct the gas refrigerant to a condenser and the liquid refrigerant to a receiver. The condenser may condense the gas refrigerant to liquid refrigerant, which may be routed to the receiver.

Electronics cabinet cooling system

A thermal battery system may be provided comprising: a vessel comprising a phase change material and a gas; a heat exchanger configured to transfer heat to and/or from the phase change material; a temperature sensor configured to detect an indication of a temperature of the gas; a pressure sensor configured to detect an indication of a pressure of the gas; and a processor configured to determine a state of charge of the thermal battery system from the indication of the pressure and the indication of the temperature of the gas.

Systems and methods to increase the recharge rate of a supplemental cooling system are provided. The system may include a primary cooling system configured to cool a thermal load, a supplemental cooling system, and a thermoelectric cooling apparatus. The thermoelectric cooling apparatus may assist the primary cooling system in recharging the supplemental cooling system in response to the supplemental cooling system operating in a recharge state, to the availability of electrical capacity, and to one or more operating parameters of the primary cooling system falling outside a predetermined range, wherein the operating parameter affects a cooling capacity of the primary cooling system.

Supplement thermal management system cooling using thermoelectric cooling

A heat transfer system for controlling two or more heat loads, including a high transient heat load, is provided. The heat transfer system may include sensible-heat thermal energy storage. A method of transferring heat from two or more heat loads to an ambient environment is further provided.

System for supporting intermittent fast transient heat loads

Methods are provided for controlling thermal energy storage in a thermal energy management system that may operate in response to a variable or high transient heat load. Thermal energy management systems are also provided for controlling thermal energy storage that may operate in response to a variable or high transient heat load.

Method of controlling thermal energy storage in a thermal energy management system

Methods and systems for recuperated superheat return are provided. A coolant is supplied in a vapor state to a compressor. The coolant compressed by the compressor is cooled with a gas cooler. The coolant cooled by the gas cooler is supplied to an inlet of a high pressure side of a recuperator. The coolant from an outlet of the high pressure side of the recuperator is supplied to a portion of a coolant circuit. The coolant is supplied back from the portion of the coolant circuit to an inlet of a low pressure side of the recuperator. The coolant in the low pressure side of the recuperator is heated with thermal energy transferred by the recuperator from the coolant in the high pressure side of the recuperator. The coolant in the vapor state from an outlet of the low pressure side of the recuperator is supplied to the compressor.

Recuperated superheat return trans-critical vapor compression system

A heat transfer system for high transient heat loads includes a fluid, a heat exchanger; a compressor downstream of the heat exchanger outlet; a condenser downstream of the compressor outlet, and a thermal energy storage (TES) section downstream of the condenser outlet and upstream of the heat exchanger. The TES section may include a first pressure regulating valve downstream of a TES unit; and a second pressure regulating valve upstream of the first pressure regulating valve.

Method for reducing condenser size and power on a heat rejection system

A thermal system may comprise a reservoir, a first fluid flowpath, and a second fluid flowpath. The first fluid flowpath may start at the reservoir and return to the reservoir. The first fluid flowpath may comprise, in a direction of the fluid flow, a first side of a sub-cooler, a liquid pump, a first side of a pre-heater, and a first side of an evaporator. The second fluid flowpath may start at the reservoir and return to the reservoir. The second fluid flowpath may comprise, in a direction of a fluid flow, a pressure regulator, a vapor compressor, a first side of a condenser, and an expansion value.

Mechanically pumped system for direct control of two-phase isothermal evaporation

Systems and methods are provided for decreasing thermalization time and/or increasing coefficients of performance by adding waste heat. A thermal management system may include a coolant loop and be configured to cool a target component via the coolant loop, the thermal management system may be further configured to heat the target component during a thermalization period with a waste heat source via the same coolant loop with which the thermal management system is configured to cool the target component.

Method for fast thermalization and thermal management operation optimization

A thermal management system for regulating dissipation of multiple thermal loads during operation of an apparatus includes a two-phase pump loop (TPPL), a vapor cycle system (VCS), and a liquid thermal energy storage (TES) system integrated together to maintain the apparatus at a constant temperature. The TPPL is configured to remove heat from the apparatus; the TES system is configured to provide thermal energy storage and temperature regulation; and the VCS is configured to transfer heat to the environment. The multiple thermal loads include a primary thermal load in the form of heat from the apparatus and a secondary thermal load in the form of at least one of a housekeeping thermal load or a power electronics thermal load. The primary and secondary loads are at different temperatures with each being independently selected to be transient or steady state.

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Fishers, IN, United States of America

Eric Sean Donovan