US 2020/0262401 A1 · Pressure-Medium Control Valve, Particularly for Controlling a Throughflow Direction in a Pressure-Medium Circuit, and Piston Pump, Particularly for Pumping a Pressure Medium in an Electronically Slip-Controllable Vehicle Brake System

Abstract

A piston pump for pumping a pressure medium in an electronically slip-controllable vehicle brake system includes a pressure-medium control valve configured to control a throughflow direction in a pressure medium circuit. The pressure-medium control valve has a valve housing, a valve seat, and a valve-closing body that is received in the valve housing in an axially movable and radially guided manner. The valve-closing body is configured to control the valve seat according to the prevailing pressure ratios upstream and downstream of the valve seat. The valve seat is configured as a single component with the valve housing. The pressure-medium control valve is produced by forming in a compact and cost-effective manner. The pressure-medium control valve operates quietly and is configured to be used alternatively as an independent unit that is configured to be tested prior to use.

Claims9

Dependent claims

A pressure-medium control valve configured to control a throughflow direction in a pressure-medium circuit, comprising:

a valve housing configured via a forming technique;
a valve seat;
and
a valve closing body that is received in an axially movable and radially guided manner in the valve housing and that controls the valve seat in dependence on the prevailing pressure conditions upstream and downstream of the valve seat,
wherein the valve seat is configured in one piece with the valve housing.

2 more elements

A piston pump configured to pump a pressure medium in an electronically slip-controllable vehicle brake system, comprising:

a pump piston configured to be driven to perform a cyclic stroke movements;
a pump cylinder in which the pump piston is received in an axially displaceable manner;
and
a pressure-medium valve that controls a flow of pressure medium through the piston pump, the pressure-medium valve including:
a valve housing configured via a forming technique,
a valve seat, and
a valve closing body that is received in an axially movable and radially guided manner in the valve housing and that controls the valve seat in dependence on the prevailing pressure conditions upstream and downstream of the valve seat, the valve seat configured in one piece with the valve housing.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/634,562Filed 30 Jul 2018

Priority

DE 10 2017 216 900.125 Sep 2017

Published

20 Aug 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

B60T 8/4031
Comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel…:…
F04B 1/0421
Details or component parts: cylinders
F16K 1/42
Cutting-off parts, e.g. valve members, seats: valve seats
F16K 15/026
The valve being loaded by a spring: the valve member being a movable body around which the medium flows when the valve is open

Pressure-Medium Control Valve, Particularly for Controlling a Throughflow Direction in a Pressure-Medium Circuit, and Piston Pump, Particularly for Pumping a Pressure Medium in an Electronically Slip-Controllable Vehicle Brake System

Life of this patent

Pressure-Medium Control Valve, Particularly for Controlling a Throughflow Direction in a Pressure-Medium Circuit, and Piston Pump, Particularly for Pumping a Pressure Medium in an Electronically Slip-Controllable Vehicle Brake System

Life of this patent

Abstract

Claims9