Liquid pump, in particular for providing a supply to a transmission or to a clutch in the drive train of a motor vehicle

Patent metadata

Field	Value
Publication number	US-11686306-B2
Application number	US-202017106359-A
Country	US
Kind code	B2
Filing date	Nov 30, 2020
Priority date	Dec 2, 2019
Publication date	Jun 27, 2023
Grant date	Jun 27, 2023

Abstract

A liquid pump, in particular for providing a supply to a transmission or to a clutch in the drive train of a motor vehicle, includes a drive motor, a pump module which can be operated in two opposing directions of rotation, and at least one inlet and multiple outlets, each of which has at least one corresponding check valve. The pump has a valve plate corresponding to the pump module in which, for each check valve, a valve seat and a receptacle for a valve element interacting with the valve seat are provided.

First claim

The invention claimed is:

1. A liquid pump, comprising:
a drive motor;
a pump module configured to be operated in two opposing directions of rotation, an inlet opening and multiple outlet openings, each of the outlet openings has at least one corresponding check valve; and
a valve plate provided corresponding to the pump module in which, for each of the check valve,
a valve seat and a receptacle throughflow channel for the respective valve element interacting with the valve seat are provided, wherein
each of the valve seat forms together with the corresponding receptacle throughflow channel which is arranged substantially in an axial direction of a drive shaft of the pump.

2. The liquid pump according to claim 1 , wherein,
the valve plate comprises at least one flow transfer opening which extends from one of the throughflow channel to the other throughflow channel and which is exposed at one of flat sides of the valve plate.

3. The liquid pump according to claim 2 , wherein
the at least one flow transfer opening forms a throttle.

4. The liquid pump according to claim 1 , wherein
each of the valve elements has a central body and multiple outer, axially extending guide wings.

5. The liquid pump according to claim 1 , wherein
the valve elements are without a restoring spring.

6. The liquid pump according to claim 1 , wherein
the liquid pump is configured to supply at least one of a transmission and a clutch in a drive train of a motor vehicle.

7. A liquid pump, comprising:
a drive motor;
a pump module configured to be operated in two opposing directions of rotation, an inlet opening and multiple outlet openings, each of the outlet openings has at least one corresponding check valve, and
a valve plate provided corresponding to the pump module in which, for each of the check valve,
a valve seat and a receptacle throughflow channel for the respective valve element interacting with the valve seat are provided, wherein
the pump module has a pump plate,
the valve plate is arranged on the pump plate, and
the pump plate has at least one flow transfer channel which connects two of the throughflow channels to one another.

8. A liquid pump, comprising:
a drive motor;
a pump module configured to be operated in two opposing directions of rotation, an inlet opening and multiple outlet openings, each of the outlet openings has at least one corresponding check valve, and
a valve plate provided corresponding to the pump module in which, for each of the check valve,
a valve seat and a receptacle throughflow channel for the respective valve element interacting with the valve seat are provided, wherein
a closure plate is arranged on a side of the valve plate facing away from the pump module and is provided with at least one said inlet opening and at least two said outlet openings.

9. The liquid pump according to claim 8 , comprising
at least two cooling media channels extending from the closure plate through the valve plate and the pump module to the drive motor.

10. The liquid pump according to claim 9 , wherein
a throttle is provided for at least one of the at least two cooling media channels in the valve plate.

Assignees

• Fte Automotive Gmbh

Inventors

• Heubner Wilhelm
• Stoessel Roland

Classifications

• F16H57/0436

  Pumps · CPC title

• F16H57/0473

  Friction devices, e.g. clutches or brakes · CPC title

• F04C2210/14

  Lubricant · CPC title

• F04C13/002

  for homogeneous viscous liquids · CPC title

• F04C29/02

  Lubrication (of machines or engines in general F01M); Lubricant separation (separation in general B01D) · CPC title