Title:
【発明の名称】スリップ制御式の自動車用ブレーキ装置のための圧力制限機能を備えた電磁弁
Document Type and Number:
Japanese Patent JPH10507813
Kind Code:
A
Abstract:
PCT No. PCT/DE95/01386 Sec. 371 Date Apr. 28, 1997 Sec. 102(e) Date Apr. 28, 1997 PCT Filed Oct. 10, 1995 PCT Pub. No. WO96/13414 PCT Pub. Date May 9, 1996A magnet valve with low noise upon shutoff from the pressure limiting function. The magnet valve has a two-part valve tappet, whose inner valve tappet part has the closing member of a seat valve. The closing member is circumferentially engaged in spaced-apart fashion, forming a gap space, by a tubular portion of the outer valve tappet part. From the gap space, a pressure fluid conduit leads to a control chamber, which is located between the face end, remote from the seat valve, of a magnet armature that cooperates with the valve tappet, and a valve dome. Upon shutoff of the magnet valve, the seat valve changes from its closing position to a partly open position, in which dynamic pressure in the gap space becomes operative and is transmitted through the pressure fluid conduit into the control chamber. The hydraulic force that is operative there on the magnet armature acts counter to the opening forces of the magnet valve and slows down its opening motion. Because of the thus-throttled flow of pressure fluid through the seat valve, a pressure surge is averted. The magnet valve can be used in slip-controlled motor vehicle brake systems.
Inventors:
Martin Ehrer
Gunther Hall
Hans-Peter Hupner
Norbert Mitt Volen
Gunther Hall
Hans-Peter Hupner
Norbert Mitt Volen
Application Number:
JP51422496A
Publication Date:
July 28, 1998
Filing Date:
October 10, 1995
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
B60T8/36; B60T8/50; F16K31/06; F16K47/02; (IPC1-7): F16K31/06; B60T8/36; B60T8/50; F16K47/02
Attorney, Agent or Firm:
Toshio Yano (3 outside)