Title:
CHECK VALVE
Document Type and Number:
Japanese Patent JPS6014669
Kind Code:
A
Abstract:
A low inertia springless check valve suitable for operation at high frequencies in a hot environment against a high cyclic back pressure with a relatively constant low input pressure, such as in an automotive engine exhaust air induction system. The valve has a circular elastomeric diaphragm mounted on a supporting frame by means of a retainer disk, a fastener and a diaphragm limiter. A central portion of the diaphragm is compressed between the disk and limiter to cause the originally flat diaphragm to become dished and biased towards the valve seat. The limiter is designed to stabilize, in the flow direction, a portion of the diaphragm extending along the entire length of an adjacent diameter of the diaphragm. The retainer disk also functions in part as a diaphragm motion limiter in the check direction.
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Inventors:
SHIYARON JIEE HADOSON JIYUNIA
Application Number:
JP13022184A
Publication Date:
January 25, 1985
Filing Date:
June 26, 1984
Export Citation:
Assignee:
SHIYARON MFG CO
International Classes:
F01N13/08; F16K15/14; (IPC1-7): F16K15/14
Domestic Patent References:
| JPS507235U | 1975-01-24 | |||
| JPS53141929A | 1978-12-11 | |||
| JPS5540377A | 1980-03-21 |
Attorney, Agent or Firm:
Kazuo Sato
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