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Title:
Poppet valves, hydraulic machinery and renewable energy generators
Document Type and Number:
Japanese Patent JP6333776
Kind Code:
B2
Abstract:
A poppet valve (50) includes: a valve seat (71); a poppet (60) disposed so as to face the valve seat (71); an actuator (55) for driving the poppet (60); and a first valve casing (51) in which the actuator (55) is accommodated. The first valve casing (51) or a plate member (80) interposed between the poppet (60) and the first valve casing (51) includes a contact surface capable of partially contacting an end surface of the poppet opposite to the valve seat (71). At least one of the contact surface or the end surface of the poppet has an uneven section which forms a space between the end surface of the poppet and the plate member or the first valve casing while the end surface of the poppet is in partial contact with the contact surface. A total angular range, in the circumferential direction of the poppet, in which the space intersects with a line parallel to a radial direction and passing through a center axis of the poppet, is not less than 180 angular degrees.

Inventors:
Toshihide Noguchi
Haruhiko Hirano
Shinji Kawabata
Masayuki Shimizu
Toshikazu Hayashi
Feller Gordon
Lampen William
Stein Uwe
Application Number:
JP2015122528A
Publication Date:
May 30, 2018
Filing Date:
June 18, 2015
Export Citation:
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Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
Artemis Intelligent Power Limited
International Classes:
F16K31/06; F03C1/053; F03D9/00; F16K47/02
Domestic Patent References:
JP2050581U
JP5071563U
JP2005240981A
JP2014530998A
JP6037667U
JP2006322430A
Attorney, Agent or Firm:
Seishin ip patent business corporation