Title:
二重偏心弁
Document Type and Number:
Japanese Patent JP6707433
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the leakage of fluid from a clearance between a valve body and a lip seal by sealing the clearance between the valve body and the lip seal even if a force for floating the valve body from the lip seal at full-closing acts on the valve body.SOLUTION: An air outlet valve 29 comprises a valve seat 38, a valve body 39, a rotating shaft 40 and a flow passage 36. The flow passage is branched to an upstream-side flow passage 36A and a downstream-side flow passage 36B with the valve seat as a boundary, and the valve body is arranged at the downstream-side flow passage. The valve body includes a first side part 39A and a second side part 39B with a virtual face extending in parallel with a direction in which an axial line of the valve body extends from an axial line of the rotating shaft as a boundary. When the valve body is opened from a full-closed state, the first side part turns to the upstream-side flow passage, and the second side part turns to the downstream-side flow passage. A valve-closing stopper 65 for regulating a turn of the full-closed valve body in a valve-closing direction is arranged at the first side so as to be engaged therewith. A spring for turning and energizing the full-closed valve body in the valve-closing direction is arranged. A lip seal 62 is arranged at the valve seat. The lip seal is raised in its surface pressure by the turn and energization of the valve body in the valve-closing direction.SELECTED DRAWING: Figure 3
Inventors:
Mamoru Yoshioka
Ito adult
Makoto Fukui
Ito adult
Makoto Fukui
Application Number:
JP2016203377A
Publication Date:
June 10, 2020
Filing Date:
October 17, 2016
Export Citation:
Assignee:
Aisan Industry Co., Ltd.
International Classes:
F16K1/226; F16K39/02
Domestic Patent References:
| JP2014047858A | ||||
| JP2005061502A | ||||
| JP55168766U | ||||
| JP11502582A | ||||
| JP2009052512A | ||||
| JP2012067696A |
Foreign References:
| WO2016002599A1 | ||||
| DE4424122A1 |
Attorney, Agent or Firm:
Cosmos International Patent and Trademark Office