Shift pump flow scheme

Patent metadata

Field	Value
Publication number	US-12439569-B2
Application number	US-202318207534-A
Country	US
Kind code	B2
Filing date	Jun 8, 2023
Priority date	Jun 13, 2022
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

A process and apparatus for cooling a heat generating component of a vehicle comprises a first pump switchable between a normal demand mode and a high demand mode. Coolant is pumped from the first pump through a cooling loop between a heat dissipating device and the heat generating component at a normal demand flowrate in the normal demand mode. Switching the first pump to the high demand mode diverts the coolant to a second pump. The second pump pumping the coolant through the cooling loop at a high demand flowrate.

First claim

What is claimed is:

1. A process for cooling at least one first heat generating component of a vehicle comprising:
providing a first pump switchable between a normal demand mode and a high demand mode;
pumping coolant from the first pump through a first cooling loop between a heat dissipating device and the first heat generating component at a first flowrate in the normal demand mode;
switching the first pump to divert the coolant to a second pump in the high demand mode; and
pumping coolant from the second pump through the cooling loop between the heat dissipating device and the at least heat generating component at a second flowrate that is greater than the first flowrate.

2. The process of claim 1 , wherein the process further comprises:
providing at least one second beat generating component connected to a second cooling loop;
pumping coolant from the first pump through the first cooling loop and the second cooling loop between the heat dissipating device and the first and the second heat generating components at the first flowrate in the normal demand mode;
switching the first pump to divert the coolant to a second pump in the high demand mode; and
pumping coolant from the second pump through the first and the second cooling loops between the heat dissipating device and the first and the second generating components at the second flowrate.

3. The process of claim 2 , wherein the first pump includes an inlet connected to the first and second coolant loops and a first valve located between the inlet and a first and a second outlet, the first valve movable between a first and a second position, the process further comprising:
moving the first valve to the first position in the normal demand mode connecting the first outlet to the inlet,
wherein the coolant is pumped from the first pump at the first outlet at the first flowrate.

4. The process of claim 3 , wherein the first valve is moved to the second position in the high demand mode disconnecting the first outlet and connecting the second outlet to the inlet, wherein the coolant is pumped from the first pump to an inlet of the second pump at the first flowrate.

5. The process of claim 4 , wherein the second pump includes a second valve located between the second pump inlet and an outlet connected to the first and second coolant loops, the second valve movable between a first position and a second position, wherein in the normal demand mode the second valve first position disconnects the second pump inlet from the outlet.

6. The process of claim 5 , wherein the second pump second valve is moved to the second position in the high demand mode connecting the second pump inlet to the outlet, wherein the second pump receives the first flowrate from the first pump and shifts the first flowrate into the second flowrate pumping the coolant from the second pump outlet at the second flowrate.

7. The process of claim 6 , wherein the first valve and the second valve move synchronously when positioned into the first and the second positions.

8. An apparatus for cooling a heat generating component of a vehicle comprising:
a first coolant loop containing a heat dissipating device and at least one first heat generating component;
a first pump for circulating a coolant through the first coolant loop between the heat dissipating device and the first heat generating component at a first flowrate; and
a second pump fluidically connected to the first pump, the first pump switchable to divert the coolant from the coolant loop to the second pump,
wherein the second pump circulates the coolant through the first coolant loop between the heat dissipating device and the first heat generating component at a second flowrate that is greater than the first flowrate.

9. The apparatus of claim 8 , wherein the apparatus further includes:
at least a second coolant loop containing at least one second heat generating component;
a first pump for circulating a coolant through the first and second coolant loops between the heat dissipating device and the first and second heat generating components of the first and second coolant loops at the first flowrate; and
a second pump fluidically connected to the first pump, the first pump switchable to divert the coolant from the first and second coolant loops to the second pump,
wherein the second pump circulates the coolant through the first and second coolant loops between the heat dissipating device and the first and second heat generating components of the first and second coolant loops at the second flowrate.

10. The apparatus of claim 9 , wherein the first pump includes an inlet connected to the first and second coolant loops and a first valve located between the inlet and a first and a second outlet, the first valve movable between a first and a second position, wherein the valve in the first position connects the first outlet to the inlet pumping the coolant from the first pump at the first flowrate.

11. The apparatus of claim 10 , wherein in the high demand mode the first valve moves to the second position connecting the second outlet to the inlet, pumping coolant from the second outlet at the first flowrate.

12. The apparatus of claim 11 , wherein the second pump includes a second valve located between an inlet to the second pump and an outlet connected to the first and second coolant loops, the second valve movable between a first position and a second position, wherein in the normal demand mode the second valve is in the first position disconnecting the second pump inlet from the outlet.

13. The apparatus of claim 12 , wherein in the high demand mode the second pump second valve is moved to the second position connecting the inlet to the second pump to the outlet, wherein the second pump receives the first flowrate from the first pump and shifts the first flowrate into the high demand flow rate pumping the coolant at the second flowrate from the second pump outlet.

14. The apparatus of claim 13 , wherein the first valve and the second valve are driven into the first and the second positions by an actuator.

15. The apparatus of claim 14 , wherein the actuator is an electrical motor that synchronously drives the first and the second valves into the first and second positions.

16. The apparatus of claim 13 , wherein the apparatus further includes a pump section, the pump section housing the first pump and the second pump within the pump section.

17. The apparatus of claim 16 , wherein the apparatus further includes:
a motor section having an electrical motor and a rotating motor shaft extending from the motor section into the pump section, the motor shaft connected to a first impeller located in the first pump and to a second impeller located in the second pump.

18. The apparatus of claim 17 , wherein the motor shaft rotates the first impeller and the second impeller at a constant rotational speed.

19. The apparatus of claim 17 , wherein the pump section includes an inlet chamber located in the pump section, and in the first valve first position the first impeller pumps the coolant from the inlet of the first pump to the first outlet at the first flowrate and in the first valve second position the first impeller pumps the coolant from the second outlet to the inlet chamber at the first flowrate.

20. The apparatus of 19 , wherein in the second valve second position the second impeller pumps the coolant in the inlet chamber to the second pump outlet at the second flowrate.

Assignees

• Cooper Standard Automotive Inc

Inventors

• Malone David S

Classifications

• H01M6/5038

  Heating or cooling of cells or batteries · CPC title

• F01P2050/24

  Hybrid vehicles · CPC title

• F01P2005/105

  Using two or more pumps · CPC title

• F01P5/12

  Pump-driving arrangements · CPC title

• F01P3/12

  Arrangements for cooling other engine or machine parts · CPC title