Patent ID: 9108606
Filing Date: 2015-08-18
Classification: B60T,Y10T

Abstract:
1. A fluidically controlled pressure switching valve for a vehicle brake system comprising: a valve chamber located in a valve interior and including an inlet opening and an outlet opening that opens into the valve chamber; a setting spring located in the valve interior; and a valve closing body configured to be guided movably in the valve interior and including (i) a piston defining a first piston surface and a second piston surface, and (ii) a closing element, wherein the valve closing body is configured to be moved against a force of the setting spring between a closed position and an open position in accordance with a pressure difference between a first pressure acting on the first piston surface and a second pressure acting on the second piston surface, wherein in the closed position a fluid connection between the inlet opening and the outlet opening is interrupted and in the open position the fluid connection between the inlet opening and the outlet opening is open, wherein the first piston surface delimits a first control chamber in the valve interior, and the first control chamber is connected by at least one compensating connection to the outlet opening, wherein the second piston surface delimits a second control chamber, and the second control chamber is separated from the valve chamber by a partition wall, and wherein the second control chamber is configured to be fluidly connected to a pump outlet of a return pump by a control port.