发明名称 |
RECIPROCABLE PISTON WITH A FLUID SCAVENGING SYSTEM AND METHOD OF SCAVENGING A FLUID |
摘要 |
A reciprocable piston comprises a cylindrical body reciprocable within a hollow cylinder and at least two spaced ring seals disposed around the circumference of the cylindrical body. Within the cylindrical body there is a scavenging system that comprises: an internal chamber that is in fluid communication with a space between the spaced ring seals; and a one-way fluid passage that allows one-way fluid flow from the internal chamber to the cylinder chamber when fluid pressure within the internal chamber is greater than fluid pressure within the cylinder chamber. A method of scavenging fluid comprises collecting fluid that leaks by a piston seal and returning the collected fluid to the cylinder chamber from which it originated, through a scavenging system disposed within the piston.
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申请公布号 |
WO03083300(A1) |
申请公布日期 |
2003.10.09 |
申请号 |
WO2003CA00438 |
申请日期 |
2003.03.26 |
申请人 |
WESTPORT RESEARCH INC.;URSAN, MIHAI;GRAM, ANKER;MARK, RANDALL |
发明人 |
URSAN, MIHAI;GRAM, ANKER;MARK, RANDALL |
分类号 |
F04B39/00;F04B9/103;F04B53/02;F04B53/04;F04B53/10;F04B53/14;F15B15/14;F16J15/00;(IPC1-7):F04B31/00;F04B39/04;F16J1/09 |
主分类号 |
F04B39/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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