[특허]High efficiency blower system with integral backflow preventor

Digital Equipment Corporation

High efficiency blower system with integral backflow preventor

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H05K-005/00
출원번호	US-0052751 (1998-03-31)
발명자 / 주소	Pettit Julie T. Bruning III Theodore Ernst Ducharme Robert Ferris Michael K. McNany Eugene
출원인 / 주소	Digital Equipment Corporation
대리인 / 주소	Holland & Hart LLP
인용정보	피인용 횟수 : 89 인용 특허 : 0

초록 ▼

In a multiblower system for cooling electronic components, each blower has a backflow preventor. The backflow preventor has two pieces of flexible material and a screen attached to the intake side of the blower assembly. Each of the pieces of flexible material is scored through to form a petaled opening through which air may pass. The scores on one of the pieces of flexible material are out of alignment with the scores on the other piece when assembled together in the blower assembly. When the blower is running, the petals in the pieces of flexible material open to allow air to pass through the blower assembly. When the blower is stopped, the petals are closed against the screen due to the pressure differential between the inside of the enclosure and the outside of the enclosure caused by the effect of the draw of the other blowers in the system. The non-aligned scores on the two pieces of flexible material causes a seal to be formed through which air may not pass back into the enclosure through the stopped blower. In addition, the flexible material acts as a damper between the blower assembly and the electronics enclosure. Further, the petaled opening of the backflow preventor directs air more toward the center of the blower creating a laminar airflow, reducing the turbulence of the air as it is removed from the enclosure.

대표청구항 ▼

[ What is claimed is:] [1.] A blower system, comprising:a housing having a first opening and a second opening;a first layer of flexible material positioned over the first opening, the first layer of flexible material having a first plurality of scores crossing at a first point, the first plurality of crossed scores forming a first plurality of petals;a second layer of flexible material positioned over the first layer of flexible material, the second layer of flexible material having a second plurality of scores crossing at a second point, the second plurality of crossed scores forming a second plurality of petals, said first layer and said second layer positioned over the first opening so that the first point and the second point are in vertical alignment and the first plurality of scores and the second plurality of scores are out of alignment with respect to each other; and,a grate fastened over the second layer of flexible material, wherein movement of air through the first opening into the housing causes the petals to open allowing the air to pass through the second opening, and movement of air through the second opening urges the petals against the grate creating a seal preventing air from passing through the first opening.

이 특허를 인용한 특허 (89)

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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

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

High efficiency blower system with integral backflow preventor

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (89)

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연합인증

High efficiency blower system with integral backflow preventor

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

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이 특허를 인용한 특허 (89)

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