Title:
VALVE DEVICE
Document Type and Number:
Japanese Patent JP2017040370
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a compact and inexpensive valve device capable of suppressing pressure pulsation.SOLUTION: A pressure pulsation attenuation device 16 is incorporated into a valve element 14 of a valve device 10. A guide hole 48A is provided at an end part facing a fluid chamber 64 communicating with a pilot control connection port P1 of a spool valve body 14 as the valve element 14. The guide 48A guides a plunger 50 in a slidable manner. By causing a preload device 54 to energize the plunger 50 toward the fluid chamber 64, pressure pulsation is attenuated.SELECTED DRAWING: Figure 1
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Inventors:
GERHARD WETZEL
GUENTER ESCHER
STEFAN WERZ
GUENTER ESCHER
STEFAN WERZ
Application Number:
JP2016160904A
Publication Date:
February 23, 2017
Filing Date:
August 18, 2016
Export Citation:
Assignee:
BOSCH GMBH ROBERT
International Classes:
F16K47/02; F16K3/26; F16K31/122
Domestic Patent References:
JP2008286381A | 2008-11-27 | |||
JP2009264560A | 2009-11-12 |
Attorney, Agent or Firm:
Miaki Kametani
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto
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