VALVE OPENING AND CLOSING DEVICE

Title:

VALVE OPENING AND CLOSING DEVICE

Document Type and Number:

Japanese Patent JPH06129219

Kind Code:

A

Abstract:

PURPOSE: To provide a valve opening and closing device which can prevent occurrence of bounce by damping the impingement of a valve element against valve seat when the valve element is closed from its opened condition.

CONSTITUTION: A disc-like spring retainer part 26D is formed on a valve element 26, near to the proximal end than a valve spring retainer part 26C, and a damper spring 27 having a spring force in a direction revere to that of a valve spring 26, which is weaker than that of the spring 6. The damper spring retainer part 26D of the valve element 26 abuts against the front end of the damper spring 27, and accordingly, the valve element 26 is seated on a valve seat while resiliently deforming the damper spring 17, and accordingly the seating speed of the valve element 16 is retarded, thereby it is possible to prevent the valve element from bouncing after it is seated on the valve seat.

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Inventors:

KAWACHI KATSUYOSHI
HOSOKAWA YUICHI
MISAWA TOMOKAZU

Application Number:

JP30509692A

Publication Date:

May 10, 1994

Filing Date:

October 16, 1992

Export Citation:

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Assignee:

UNISIA JECS CORP

International Classes:

F01L1/16; F01L3/10; F01L9/04; H01L41/12; (IPC1-7): F01L9/04; F01L1/16; F01L3/10; H01L41/12

Domestic Patent References:

JP64047909B
JPH0347412A	1991-02-28
JPS6176713A	1986-04-19
JP60175805B

Attorney, Agent or Firm:

Kazuhiko Hirose

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