发明名称 |
NOISE ATTENUATION IN A CHECK VALVE UNIT OR APPARATUS FOR PRODUCING VACUUM |
摘要 |
Check valve units having one or more sound attenuating members are disclosed. A check valve unit includes a housing defining an inlet port, an outlet port, and a chamber in fluid communication therewith thereby defining a flow path from the inlet port through the chamber to the outlet port. The chamber includes first and second valve seats and has a sealing member disposed therein that is moveable from a position seated on the first valve seat to a position seated on the second valve seat. A sound attenuating member is disposed in the flow path downstream of the chamber, within the chamber, or both. In another embodiment, the check valve unit includes a Venturi portion in fluid communication with the chamber. The Venturi portion has a fluid junction with the flow path downstream of the chamber or forms the discharge section of the Venturi portion thereby defining the outlet port. |
申请公布号 |
US2015096637(A1) |
申请公布日期 |
2015.04.09 |
申请号 |
US201414509612 |
申请日期 |
2014.10.08 |
申请人 |
Hampton Keith;Fletcher David E.;Graichen Brian M.;Bravo Rex;Gilmer Matt;Niedert Andrew |
发明人 |
Hampton Keith;Fletcher David E.;Graichen Brian M.;Bravo Rex;Gilmer Matt;Niedert Andrew |
分类号 |
F16K47/08;F16K15/00;F16K47/14 |
主分类号 |
F16K47/08 |
代理机构 |
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代理人 |
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主权项 |
1. A check valve unit comprising:
a housing defining an inlet port, an outlet port, and a chamber in fluid communication with the inlet port and the outlet port thereby defining a flow path from the inlet port through the chamber to the outlet port, wherein the chamber includes a first valve seat and a second valve seat; a sealing member disposed in the chamber that is moveable from a position seated on the first valve seat to a position seated on the second valve seat; and a sound attenuating member disposed in the flow path downstream of the chamber, disposed within the chamber, or both. |
地址 |
Ann Arbor MI US |