[특허]Pulsation absorbing device

Pulsation absorbing device 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F15B-001/04
출원번호	US-0037027 (1987-04-10)
발명자 / 주소	Arendt Edward (Palatine IL)
출원인 / 주소	Wilkes-McLean, Ltd. (Barrington IL 02)
인용정보	피인용 횟수 : 23 인용 특허 : 0

초록 ▼

A pulsation absorbing device and method of making a pulsation absorbing device is disclosed. The pulsation absorbing device includes a pressure vessel having a resilient diaphragm mounted therein together with an inlet associated with one end of the pressure vessel and an outlet associated with the other end of the pressure vessel. A spool is mounted within the pressure vessel inwardly of the resilient diaphragm and intermediate and in communication with the inlet and the outlet to carry fluid from the inlet to the outlet. The spool and the resilient diaphragm define a pressure chamber therebetween which is in fluid communication with fluid carried from the inlet to the outlet through holes in the spool. A helical wave band is disposed on the spool for accommodating flow through the holes in the spool and defines a plurality of helically spaced flow accommodating openings. With this arrangement, at least some of the flow accommodating openings of the helical wave band are in communication with the holes in the spool after the helical wave band has been spirally wound upon the spool in accordance with the disclosed method.

대표청구항 ▼

A pulsation absorbing device, comprising: a pressure vessel having a resilient diaphragm mounted therein; inlet means associated with one end of said pressure vessel and outlet means associated with the other end of said pressure vessel; spool means mounted within said pressure vessel inwardly of said resilient diaphragm, said spool means being disposed intermediate and in communication with said inlet means and said outlet means to carry fluid from said inlet means to said outlet means, said spool means and said resilient diaphragm defining a pressure chamber therebetween; said spool means having a plurality of openings therethrough and said pressure chamber being in fluid communication with fluid carried from said inlet means to said outlet means through said openings in said spool means; and a helical wave band disposed on said spool means to accommodate flow through said openings in said spool means, said helical wave band defining a plurality of helically spaced flow accommodating openings, at least some of said flow accommodating openings of said helical wave band being in direct fluid communication with said openings in said spool means; said helical wave band being formed from a spring material having substantially regularly spaced and alternately crests and troughs in a plane substantially perpendicular to the longitudinal axis of the spool means with axially adjacent crests in alignment said troughs being axially adjacent and in contact with each other, said axially adjacent crests defining said flow accommodating openings and being compressible to reduce the spacing therebetween, said flow accommodating openings being of variable size depending upon compression of said helical wave band.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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이 특허를 인용한 특허 (23)

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