发明授权
- 专利标题： Check valve and booster shell
- 专利标题（中）： 止回阀和助力器外壳
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申请号： US570051申请日： 1990-08-09
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公开(公告)号： US5117738A公开(公告)日： 1992-06-02
- 发明人: Charles B. Horner, Jr.
- 申请人： Charles B. Horner, Jr.
- 申请人地址： NJ Morristown
- 专利权人： Allied-Signal Inc.
- 当前专利权人： Allied-Signal Inc.
- 当前专利权人地址： NJ Morristown
- 主分类号： B60T13/56
- IPC分类号： B60T13/56 ; B60T13/24 ; B60T13/52 ; F16K15/14
摘要：
A brake booster (12) and check valve (36) wherein the housing (38) of the check valve (36) has a plurality of legs (52, 52'. . . 52.sup.N) with a disc (56) located thereon. The legs (52, 52'. . . 52.sup.N) which extend through slots (55, 55'. . . 55.sup.N) in the shell (30) of the brake booster (12) have tabs (54, 54'. . . 54.sup.N) that lock the housing (38) to the shell (30). The disc (56) has an annular rib (58) which engages the shell (30) to form a seal to prevent air from entering chambers (24, 40). The housing (38) is connected to a source of vacuum and a flapper (60) positioned over a plurality of openings (32, 32'. . . 32.sup.N) in the shell (30) to allow vacuum in the chamber (40) to evacuate air from the brake booster (12).
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