Patent ID: 9139178
Filing Date: 2015-09-22
Classification: B60T,Y10T

Abstract:
1. A pressure control valve arrangement for controlling a fluid pressure in an ABS brake system of a vehicle so that, while there is a tendency of individual wheels of the vehicle to lock, the brake pressure in at least one associated brake cylinder can be adaptively adjusted, comprising: a housing; and at least one diaphragm valve accommodated in the housing, the diaphragm valve having a diaphragm as the valve body, which diaphragm can be acted upon by introducing a pressure medium into a control chamber that is covered on the outside of the housing by a respective cover produced by primary shaping, so that the control chamber is formed between the diaphragm and the cover, wherein blind holes, which extend in the cover substantially perpendicularly to the plane of the cover, are formed in the cover, the blind hole opening of at least one of the blind holes leading into the control chamber, and the blind hole opening of at least one other of the blind holes leading into a pressure medium channel formed in the housing, and the at least one blind hole and the other of the blind holes being fluidically interconnected by at least one transverse channel, wherein the transverse channel has an acute angle relative to the plane of the cover and opens at one end, by a transverse channel opening, into the control chamber or into the pressure medium channel, wherein the transverse channel opening at least partially overlaps the blind hole opening of the other of the blind holes, which is centrally arranged, connected by the transverse channel; wherein the transverse channel opening has a substantially oval cross-section, wherein the cross-section of the transverse channel is cylindrical in a plane perpendicular to the center line of the transverse channel, and wherein the transverse channel opens into the other of the blind holes connected by the transverse channel, wherein the transverse channel ends at the bottom of the other blind hole and does not extend beyond the other blind hole and does not penetrate the wall of the cover again.