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Title: Waste heat recovery system and control

Patent ·
OSTI ID:2222225

A waste heat recovery (WHR) system that can be utilized in internal combustion engine systems includes at least two circuits, one having a low pressure working fluid and another having a high pressure working fluid. Each circuit can include heat exchangers to allow the working fluid to absorb heat form one or more heat source fluids associated with the engine. The system can also include an expander configured to receive the working fluid from the at least two circuits, and generating mechanical power. The system also can include a condenser, a sub cooler, and at least one working fluid pump to pump the working fluid in the at least two circuits. The cooling system also includes a controller that can receive temperature and pressure values from various locations in the WHR system and control at least the flow rates of the working fluids in the at least two circuits.

Research Organization:
Cummins, Inc., Columbus, IN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0007761
Assignee:
Cummins Inc. (Columbus, IN)
Patent Number(s):
11,739,665
Application Number:
17/612,646
OSTI ID:
2222225
Resource Relation:
Patent File Date: 05/14/2020
Country of Publication:
United States
Language:
English

References (14)

System and a Method of Energy Recovery from Low Temperature Sources of Heat patent-application November 2011
Waste Heat Recovery Vehicle Cooling Optimization patent-application August 2019
Waste heat recovery system patent January 2016
Dual cycle rankine waste heat recovery cycle patent June 2015
High-temperature dual-source organic Rankine cycle with gas separations patent November 2011
Superheat sensor with single coupling to fluid line patent December 1991
Vehicle Waste Heat Recovery System patent-application September 2015
Internal combustion engine arrangement comprising a waste heat recovery system and process for controlling said system patent May 2017
Waste Heat Recovery System patent-application March 2011
Steam turbine with heating steam extraction and power plant with steam turbine patent March 2010
Multi-pressure organic Rankine cycle patent October 2019
Method and apparatus for heating an expansion machine of a waste heat recovery apparatus patent April 2018
Methods and Apparatus for Power Generation patent-application November 2008
Cascaded Organic Rankine Cycle (ORC) System Using Waste Heat From a Reciprocating Engine patent-application October 2010

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