Title:
FLOW PASSAGE OPENING/CLOSING VALVE
Document Type and Number:
WIPO Patent Application WO/2016/136643
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a flow passage opening/closing valve, wherein a load torque at the time of an opening/closing operation of the flow passage opening/closing valve can be reduced and the flow passage opening/closing valve can be locked. The flow passage opening/closing valve (10) comprises a valve housing (30), a valve body (40) capable of rotating together with a shaft (50), a first drive mechanism (60) that rotates the shaft (50), a seal ring (70) on which the valve body (40) sits, a seal ring moving mechanism (80) that moves the seal ring (70), and a lock mechanism (90) that prevents rotation of the valve body (40). The lock mechanism (90) is provided with a first engagement portion (94) provided in the seal ring (70) or the seal ring moving mechanism (80), and a second engagement portion (95) provided in the valve body (40).
Inventors:
AIHARA HIROYUKI (JP)
Application Number:
PCT/JP2016/054977
Publication Date:
September 01, 2016
Filing Date:
February 22, 2016
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
F16K5/06; F16K35/00
Foreign References:
| JPH0384269A | 1991-04-09 | |||
| JPS5028026A | 1975-03-22 | |||
| JPS537841A | 1978-01-24 |
Attorney, Agent or Firm:
KUDOH Minoru (JP)
Minoru Kudo (JP)
Minoru Kudo (JP)
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