Title:
特に自動車の液圧式ブレーキ装置のための電磁作動弁
Document Type and Number:
Japanese Patent JP5079966
Kind Code:
B2
Abstract:
The valve (10) has a seat valve (27) comprising a hollow cone-shaped valve seat (24) and an hemispherical shutoff element (26). An afflux bore (23) having contact with a pressure-medium inlet (19) discharges centrically into the valve seat (24). A solenoid armature (30) acting upon the seat valve (27) in opening fashion grips a push rod (25) comprising the shutoff element (26). The solenoid armature cooperates with a pole body (42) according to the flat-type armature principle. A preloaded return spring (39) acting on the seat valve (27) in closing fashion is arranged between the pole body (42) and the solenoid armature (30). The valve (10) works as a proportioning valve, because, in addition to a suitable design of the seat valve (27) and push rod (25), the magnetic force is infinitely variable and, together with a hydraulic force, has a monotonously increasing course as the valve opening stroke increases, while the spring force-which also has a monotonously increasing course as the valve opening stroke increases-has a positive slope that is greater than that of the course of the magnetic and hydraulic force.
Inventors:
Dirk Hoffman
Hans-Friedrich Schwarz
Gerhard Haar
Valentin Svychev
Hans-Friedrich Schwarz
Gerhard Haar
Valentin Svychev
Application Number:
JP2002521072A
Publication Date:
November 21, 2012
Filing Date:
August 03, 2001
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
B60T15/36; B60K31/06; B60T8/36; B60T13/68; B60T15/02; F16K31/06
Domestic Patent References:
| JP2002528680A | ||||
| JP2000512585A | ||||
| JP54034055U | ||||
| JP7503204A |
Foreign References:
| WO1999037517A1 |
Attorney, Agent or Firm:
Toshio Yano
Takuya Kuno
Einzel Felix-Reinhard
Takuya Kuno
Einzel Felix-Reinhard