公开(公告)号：US20210215082A1

公开(公告)日：2021-07-15

申请号：US15734260

申请日：2019-06-17

Applicant: Scania CV AB

Inventor： Zoltan KARDOS ,  Ola HALL ,  Thomas SEDERHOLM

IPC: F01N5/02 ,  F01K9/00 ,  F01K13/02 ,  F01K23/06 ,  F01K23/10 ,  F01K23/14 ,  F02G5/02

Abstract: The present invention relates to an arrangement comprising a waste heat recovery system (WHR-system) and a method for controlling the arrangement. The arrangement comprises an expansion tank having a constant inner volume, first cooling means configured to cool the working fluid in the condenser and a control unit configured to control the first cooling means such that the working fluid is cooled to a desired condensation temperature in the condenser during operation of the WHR system. The arrangement comprises further a sub-cooler arranged in a position downstream of the condenser and second cooling means configured to cool the working fluid in the sub-cooler, and that the control unit is configured to control the second cooling means such that the working fluid receives a determined subcooling in the sub-cooler during operation of the WHR system.

公开(公告)号：US20210003040A1

公开(公告)日：2021-01-07

申请号：US16979549

申请日：2019-03-19

Applicant: Scania CV AB

Inventor： Thomas SEDERHOLM ,  Zoltan KARDOS

IPC: F01K23/06 ,  F02G5/02

Abstract: An arrangement and a method for controlling a shutdown phase of a WHR-system. The WHR system includes a main circuit (4) which includes a pump (3), an evaporator (5), an expander (7) and a condenser (10), and a compensation tank (12) which is configured to compensate for volume changes of a working fluid in the main circuit (4) during operation of the WHR system. The arrangement includes a control unit (26) configured to receive information when the shutdown phase of the WHR system is to be initiated and a flow device able to supply working fluid from the compensation tank (12) to the main circuit (4). The control unit (26) is configured to activate the flow device such that working fluid is supplied from the compensation tank (12) to the main circuit (4) when it receives information indication that the shutdown phase of the WHR system is to be initiated.

公开(公告)号：US20190309703A1

公开(公告)日：2019-10-10

申请号：US16469133

申请日：2017-11-30

Applicant: Scania CV AB

Inventor： Thomas SEDERHOLM

IPC: F02G5/02 ,  F01K23/06

Abstract: The present invention relates to a tank arrangement for a working medium in a waste heat recovery (WHR) system. The tank arrangement comprises an extendable tank configured to receive a working medium circulating in the WHR system. The extendable tank comprises a tubular wall element designed to have an adjustable length in a longitudinal direction, a first end wall connected to a first end of the tubular wall element, a second end wall connected to a second end of the tubular wall element, and an actuator mechanism configured to provide a movement of the first end wall in relation to the second end wall in the longitudinal direction of the tubular wall element in order to adjust the volume of the extendable tank.

公开(公告)号：US20200149436A1

公开(公告)日：2020-05-14

申请号：US16617146

申请日：2018-06-01

Applicant: Scania CV AB

Inventor： Zoltan KARDOS ,  Thomas SEDERHOLM

IPC: F01K23/10 ,  F01P7/16 ,  F01K17/04

Abstract: A cooling system includes a first circuit (A) configured to cool a combustion engine (2) and a second circuit (B) configured to cool a condenser (19) in a WHR system. The second circuit (B) has a second radiator (16), a first inlet opening (B1i) at which the second circuit (B) receives a coolant from a first position of the first circuit (A), a condenser inlet line (18) configured to direct coolant to the condenser (19) and an outlet opening (Bo) at which the coolant is directed back to the first circuit (A). The second circuit (B) further has a second radiator bypass line (14) directing coolant past the second radiator (16), and a second valve device (13, 13′) configured to distribute the coolant between the second radiator (16) and the second radiator bypass line (14) such that a coolant mixture is received in the condenser inlet line (18) which is able to cool the working medium in the condenser (19) to a desired condensation temperature.

公开(公告)号：US20190153904A1

公开(公告)日：2019-05-23

申请号：US16091405

申请日：2017-03-31

Applicant: SCANIA CV AB

Inventor： Zoltan KARDOS ,  Stefan TREUTIGER ,  Thomas SEDERHOLM

IPC: F01K23/06 ,  F02G5/02 ,  F01N3/20 ,  F01N5/02 ,  F01N9/00 ,  F01K15/02 ,  F01K23/10

Abstract: The present invention relates an arrangement for an exhaust system of a combustion engine. The arrangement comprises at least one exhaust treatment component arranged in the exhaust system, a first boiler of a Waste Heat Recovery System (WHR) system arranged in an upstream position of the exhaust treatment component in the exhaust system, a second boiler of the WHR system arranged in a downstream position of the exhaust treatment component in the exhaust system and a working medium circuit circulating a working medium in the WHR system. The working medium circuit comprises a first conduit directing the working medium to the first boiler, a first bypass conduit directing the working medium past the first boiler, and a first valve device configured to regulate the working medium flow through the first conduit and the first bypass conduit.