Title:
【発明の名称】電気制御液圧駆動式バルブアクチュエーター
Document Type and Number:
Japanese Patent JP3326219
Kind Code:
B2
Abstract:
A highly efficient all hydraulic poppet valve actuator utilizes fluid spring chambers (2,3) at each end of travel to store energy. Fluid in a first spring chamber (2) is compressed and the chamber cocked by supplemental hydraulic pressure which also seats a poppet valve (1). A first activation device (5) cancels this pressure to allow transit of the poppet valve (1) and re-cocking of the second spring chamber (3). Return activation is caused by cancelling a fluid latch (7) to allow transit back to a initial position which recloses the poppet valve (1).
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Inventors:
Frederick Ericsson
William Richardson
William Richardson
Application Number:
JP260193A
Publication Date:
September 17, 2002
Filing Date:
January 11, 1993
Export Citation:
Assignee:
Mannesmann Faudeaux Akchen Gezel Shaft
International Classes:
F01L9/10; F01L1/46; (IPC1-7): F01L9/02
Domestic Patent References:
| JP5270422A | ||||
| JP4232319A | ||||
| JP60128911A | ||||
| JP61192505U | ||||
| JP193310U | ||||
| JP6411309U | ||||
| JP444408U |
Attorney, Agent or Firm:
Akihide Sugimura (5 outside)