Title:
異物侵入防止構造付き流体装置
Document Type and Number:
Japanese Patent JP4179114
Kind Code:
B2
Abstract:
To protect a drive unit in a fluid valve assembly from impurities over a long term by preventing entrance of such impurities to the drive unit, a seal structure the sealing performance of which is hardly reduced is adopted around a moving part of the fluid valve assembly. The fluid valve assembly is provided with a valve member displaceably arranged in a flow passage through which a fluid is allowed to pass, a drive unit arranged outside the flow passage, a connecting member extending through a bore formed in a wall of the flow passage and connected at its end thereof to the valve member and at its opposite end to the drive unit, and a seal member arranged in gas- or water-tight relations with the wall of the flow passage and the connecting member and made of a flexible material such that the seal member does not interfere with a displacement of the valve member when the valve member is driven by the drive unit.
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Inventors:
Yoshiyuki Akao
Shigeru Matsuo
Shigeru Matsuo
Application Number:
JP2003317162A
Publication Date:
November 12, 2008
Filing Date:
September 09, 2003
Export Citation:
Assignee:
Mitsubishi Fuso Truck and Bus Co., Ltd.
International Classes:
F02M25/07; F16K31/06; F16K41/00; F16K41/12
Domestic Patent References:
| JP192565U | ||||
| JP7042629A | ||||
| JP2008821U | ||||
| JP9189364A | ||||
| JP2050583U |
Attorney, Agent or Firm:
Yu Sanada