Electromagnetic pressure control valve

Patent metadata

Field	Value
Publication number	US-10352469-B2
Application number	US-201715727802-A
Country	US
Kind code	B2
Filing date	Oct 9, 2017
Priority date	Oct 21, 2016
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

An electromagnetic pressure regulation valve including an electromagnetic actuator that positions a piston that is received axially movable in a controller housing, wherein the piston is configured to open and/or close connections of the pressure control valve for flow through, wherein the piston includes a pin at a face surface that is oriented away from the electromagnetic actuator, wherein a relative movement is facilitated between the pin and the piston, wherein a pin face that is oriented away from the piston in the controller housing is arranged opposite to a stop, wherein the pressure control valve includes a hydraulic end position damping for damping a movement of the pin in a direction towards the stop.

First claim

What is claimed is:

1. An electromagnetic pressure control valve comprising:
an electromagnetic actuator that positions a piston that is received axially movable in a controller housing,
wherein the piston is configured to open or close connections of the pressure control valve for a flow through,
wherein the piston includes a pin at a piston face that is oriented away from the electromagnetic actuator,
wherein a relative movement is facilitated between the pin and the piston,
wherein a pin face that is oriented away from the piston is arranged opposite to a stop arranged in the controller housing,
wherein the pressure control valve includes a hydraulic end position damping for damping a movement of the pin in a direction towards the stop, and
wherein the hydraulic end position damping includes a terminal element receiving the pin.

2. The electromagnetic pressure control valve according to claim 1 , wherein the hydraulic end position damping includes a relief opening.

3. The electromagnetic pressure control valve according to claim 2 , wherein the relief opening is configured at the controller housing.

4. The electromagnetic pressure control valve according to claim 1 , wherein a variable volume is provided between the terminal element and the piston face.

5. The electromagnetic pressure control valve according to claim 1 , wherein the terminal element includes a damping opening.

6. The electromagnetic pressure control valve according to claim 2 , wherein the relief opening is positioned as a function of an installation positon of the electromagnetic pressure control valve.

7. The electromagnetic pressure control valve according to claim 1 , wherein a defined clearance is provided between the pin and the terminal element.

8. The electromagnetic pressure control valve according to claim 1 , wherein the pin is provided with a penetration depth that is defined in the terminal element.

9. The electromagnetic pressure control valve according to claim 1 , wherein the terminal element includes a bevel at a receiving opening that receives the pin.

10. The electromagnetic pressure control valve according to claim 9 , wherein the bevel has an opening angle with a value of approximately 120°.

11. The electromagnetic pressure control valve according to claim 1 , wherein the terminal element includes a bevel at a shoulder surface at an outer circumference of the terminal element.

12. The electromagnetic pressure control valve according to claim 1 , wherein the terminal element is secured at the controller housing by at least one clamping element.

13. The electromagnetic pressure control valve according to claim 12 , wherein a face of the terminal element that is oriented away from the piston is configured rounded.

Assignees

• ECO Holding 1 GmbH
• ECP Holding 1 GmbH

Inventors

• Eisenberger Andreas
• Franz Bernd

Classifications

• F16K31/0613 Primary

  with cylindrical slides · CPC title

• F16K31/0696

  Shock absorbing, e.g. using a dash-pot · CPC title

• F16H61/0251

  Elements specially adapted for electric control units, e.g. valves for converting electrical signals to fluid signals · CPC title

• F15B13/02 Primary

  Fluid distribution or supply devices characterised by their adaptation to the control of servomotors · CPC title

• F15B13/0407

  Means for damping the valve member movement · CPC title