Invention Grant
- Patent Title: Zero emissions reciprocating pump
- Patent Title (中): 零排放往复泵
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Application No.: US12841219Application Date: 2010-07-22
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Publication No.: US08191460B2Publication Date: 2012-06-05
- Inventor: Herbert H. Tackett, Jr. , James A. Cripe , Gary Dyson , Peter Thompson
- Applicant: Herbert H. Tackett, Jr. , James A. Cripe , Gary Dyson , Peter Thompson
- Applicant Address: US MI Battle Creek
- Assignee: Clyde Union Inc.
- Current Assignee: Clyde Union Inc.
- Current Assignee Address: US MI Battle Creek
- Agency: Harness, Dickey & Pierce, P.L.C.
- Main IPC: F04B53/16
- IPC: F04B53/16 ; F16J10/00

Abstract:
A sealing system for a pump having a plunger includes a housing having an internal chamber adapted to receive a portion of the plunger. Primary and secondary seals are located within the internal chamber and adapted to sealingly engage the plunger. The primary seal communicates with the fluid being pumped. A barrier fluid chamber contains a barrier fluid in contact with the primary seal and the secondary seal. A pressure referencing device has an inlet port in communication with the pumped fluid and an outlet port providing fluid at a pressure magnitude equal to a peak pressure of the pumped fluid. A pressurizing device is in communication with the fluid at the peak pressure and the barrier fluid to maintain the barrier fluid pressure at a magnitude greater than the peak pressure of the pumped fluid such that the pumped fluid is restricted from leaking past the primary seal.
Public/Granted literature
- US20100296952A1 Zero Emissions Reciprocating Pump Public/Granted day:2010-11-25
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