Liquid hammer prevention device
AssigneeSuzuki Sogyo Co., Ltd.
InventorsTatsuya Kobayashi, Eiji Suzuki
Life of this patent
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Abstract
A liquid hammer prevention device has a casing led to a fluid channel via passage hole, an elastic cushion made of foamed material incorporated in the casing; and a diaphragm partitioning the inside of the into an area led to the fluid channel and another area incorporating the elastic cushion. The elastic cushion is “Asker C 30 and 85” according to Japanese Industrial Standard S 6050 measured by the level gauge of a durometer “Asker C,” and is 0.30-0.70 of apparent specific gravity.
Claims24
A liquid hammer prevention device comprising:
- a casing led to a fluid channel via passage hole;
- an elastic cushion incorporated in said casing;
- and a diaphragm partitioning the inside of said casing into an area led to said fluid channel and another area incorporating said elastic cushion, wherein said elastic cushion is a foamed material of which initial hardness falls under the range of “Asker C 30 and 85” according to Japanese Industrial Standard S 6050 measured by the level gauge of a durometer “Asker C” manufactured by Kobunshi Keiki Co., Ltd. of Kyoto, Japan, and of which apparent specific gravity falls under the range of 0.30 and 0.70.
A liquid hammer prevention device comprising:
- a casing led to a fluid channel via passage hole;
- an elastic cushion incorporated in said casing;
- and a diaphragm partitioning the inside of said casing into an area led to said fluid channel and another area incorporating said elastic cushion, wherein said elastic cushion is a foamed material of which initial hardness falls under the range of “Asker C 50 and 85” according to Japanese Industrial Standard S 6050 measured by the level gauge of a durometer “Asker C” manufactured by Kobunshi Keiki Co., Ltd. of Kyoto, Japan, and of which apparent specific gravity falls under the range of 0.30 and 0.40.
A liquid hammer prevention device comprising:
- a casing led to a fluid channel via passage hole;
- an elastic cushion incorporated in said casing;
- and a diaphragm partitioning the inside of said casing into an area led to said fluid channel and another area incorporating said elastic cushion, wherein said elastic cushion is a foamed material of which initial hardness falls under the range of “Asker C 55 and 70” according to Japanese Industrial Standard S 6050 measured by the level gauge of a durometer “Asker C” manufactured by Kobunshi Keiki Co., Ltd. of Kyoto, Japan, and of which apparent specific gravity falls under the range of 0.30 and 0.40.
Dependencies are inferred from the claim text.