公开(公告)号：US20150027118A1

公开(公告)日：2015-01-29

申请号：US14336710

申请日：2014-07-21

Applicant: Cummins, Inc.

Inventor： Christophe Tricaud ,  Timothy C. Ernst ,  James A. Zigan

IPC: F01N11/00 ,  G01L3/24 ,  F01N5/02

CPC classification number: F01N11/00 ,  F01K23/10 ,  F01K25/065 ,  F01N5/02 ,  F02G5/04 ,  G01L3/245 ,  Y02T10/16

Abstract: The disclosure provides a waste heat recovery system with a system and method for calculation of the net output torque from the waste heat recovery system. The calculation uses inputs from existing pressure and speed sensors to create a virtual pump torque sensor and a virtual expander torque sensor, and uses these sensors to provide an accurate net torque output from the WHR system.

Abstract translation: 本公开提供了一种具有用于计算来自废热回收系统的净输出转矩的系统和方法的废热回收系统。 该计算使用现有压力和速度传感器的输入来创建虚拟泵扭矩传感器和虚拟膨胀器扭矩传感器，并使用这些传感器来提供WHR系统的精确的净扭矩输出。

公开(公告)号：US10287923B2

公开(公告)日：2019-05-14

申请号：US14974497

申请日：2015-12-18

Applicant: Cummins, Inc.

Inventor： Christophe Tricaud ,  James A. Zigan

IPC: F01K23/06 ,  F01K27/02 ,  F01K13/02

Abstract: An apparatus includes a pump circuit structured to receive pump data indicative of an operating characteristic of a pump feeding a fluid to a waste heat recovery (WHR) system; a flow circuit structured to receive valve position data indicative of a position of a valve downstream of the pump, estimate a flow rate of the fluid exiting the pump, and estimate the flow rate of the fluid exiting the valve; and a pressure circuit structured to receive pressure data indicative of the pressure of the fluid exiting the valve, estimate a change in pressure of the fluid across the WHR system, and determine a pressure of the fluid in a hot section of the WHR system based on the pressure of the fluid exiting the valve and the change in the pressure of the fluid across the WHR system.

公开(公告)号：US09845711B2

公开(公告)日：2017-12-19

申请号：US13902719

申请日：2013-05-24

Applicant: CUMMINS INC.

Inventor： Timothy C. Ernst ,  James A. Zigan

IPC: F01D15/12 ,  F04D29/00 ,  F01D25/18 ,  F04D29/12 ,  B01D19/02 ,  F01B31/10 ,  F01K9/00 ,  F01K25/04 ,  F01K25/06

CPC classification number: F01K9/00 ,  F01K25/04 ,  F01K25/06

Abstract: A waste heat recovery system includes a Rankine cycle (RC) circuit having a pump, a boiler, an energy converter, and a condenser fluidly coupled via conduits in that order, to provide additional work. The additional work is fed to an input of a gearbox assembly including a capacity for oil by mechanically coupling to the energy converter to a gear assembly. An interface is positioned between the RC circuit and the gearbox assembly to partially restrict movement of oil present in the gear assembly into the RC circuit and partially restrict movement of working fluid present in the RC circuit into the gear assembly. An oil return line is fluidly connected to at least one of the conduits fluidly coupling the RC components to one another and is operable to return to the gear assembly oil that has moved across the interface from the gear assembly to the RC circuit.

公开(公告)号：US09683515B2

公开(公告)日：2017-06-20

申请号：US14322308

申请日：2014-07-02

Applicant: Cummins, Inc.

Inventor： Timothy C. Ernst ,  James A. Zigan

IPC: F02G5/02 ,  F01K23/06 ,  F28D21/00

CPC classification number: F02G5/02 ,  F01K23/065 ,  F28D21/0014 ,  Y02T10/166

Abstract: The disclosure describes a non-condensable gas collection, detection, and removal system for a WHR system that helps to maintain cycle efficiency of the WHR system across the life of an engine system associated with the WHR system. A storage volume is configured to collect non-condensable gas received from the working fluid circuit, and a release valve is configured to selectively release non-condensable gas contained within the storage volume.

公开(公告)号：US09518497B2

公开(公告)日：2016-12-13

申请号：US14336710

申请日：2014-07-21

Applicant: Cummins, Inc.

Inventor： Christophe Tricaud ,  Timothy C. Ernst ,  James A. Zigan

IPC: B60K6/20 ,  F01K23/10 ,  F02G5/04 ,  F01K23/06 ,  F01K25/06 ,  F01N11/00 ,  F01N5/02 ,  G01L3/24

CPC classification number: F01N11/00 ,  F01K23/10 ,  F01K25/065 ,  F01N5/02 ,  F02G5/04 ,  G01L3/245 ,  Y02T10/16

Abstract: The disclosure provides a waste heat recovery system with a system and method for calculation of the net output torque from the waste heat recovery system. The calculation uses inputs from existing pressure and speed sensors to create a virtual pump torque sensor and a virtual expander torque sensor, and uses these sensors to provide an accurate net torque output from the WHR system.

Abstract translation: 本公开提供了一种具有用于计算来自废热回收系统的净输出转矩的系统和方法的废热回收系统。 该计算使用现有压力和速度传感器的输入来创建虚拟泵扭矩传感器和虚拟膨胀器扭矩传感器，并使用这些传感器来提供WHR系统的精确的净扭矩输出。