公开(公告)号：US20210040877A1

公开(公告)日：2021-02-11

申请号：US16531754

申请日：2019-08-05

Applicant: GM Global Technology Operations LLC

Inventor： Michael A. Smith ,  Scott K. Wilson ,  Eugene V. Gonze ,  James B. Hicks ,  Sergio Quelhas ,  Anthony J. Corsetti

IPC: F01P5/12 ,  F04D15/00 ,  F01P7/16

Abstract: The present disclosure provides an engine cooling system for controlling the temperature of an engine of a motor vehicle. The system includes an engine cooling circuit for circulating a coolant to transfer heat from the engine to an airflow. An electric water pump is configured to circulate the coolant through the circuit at a maximum electric pump flow rate, and a mechanical water pump is configured to circulate the coolant through the circuit at a maximum mechanical pump flow rate that is higher than the maximum electric pump flow rate. The circuit further includes a selector valve configured to fluidly connect one of the electric water pump and the mechanical water pump to the engine. An engine control module generates a valve signal for actuating the selector valve to fluidly connect one of the electric water pump and the mechanical water pump to the engine.

公开(公告)号：US10895192B1

公开(公告)日：2021-01-19

申请号：US16531754

申请日：2019-08-05

Applicant: GM Global Technology Operations LLC

Inventor： Michael A. Smith ,  Scott K. Wilson ,  Eugene V. Gonze ,  James B. Hicks ,  Sergio Quelhas ,  Anthony J. Corsetti

IPC: F02P5/12 ,  F01P5/12 ,  F04D15/00 ,  F01P7/16 ,  F01P7/14 ,  F01P3/02

Abstract: The present disclosure provides an engine cooling system for controlling the temperature of an engine of a motor vehicle. The system includes an engine cooling circuit for circulating a coolant to transfer heat from the engine to an airflow. An electric water pump is configured to circulate the coolant through the circuit at a maximum electric pump flow rate, and a mechanical water pump is configured to circulate the coolant through the circuit at a maximum mechanical pump flow rate that is higher than the maximum electric pump flow rate. The circuit further includes a selector valve configured to fluidly connect one of the electric water pump and the mechanical water pump to the engine. An engine control module generates a valve signal for actuating the selector valve to fluidly connect one of the electric water pump and the mechanical water pump to the engine.