Pneumatic booster

Details Pneumatic booster Pneumatic booster

2005-03-08

2005-03-08

Lopez, F. Daniel (Department: 3745)

Power plants

Pressure fluid source and motor

Utilizing lubricant, starter motor, cooling fluid, or fluid...

C060S411000, C091S37600A

Reexamination Certificate

active

06862882

ABSTRACT:
There is provided a pneumatic booster having an ejector, which achieves space-saving and enables easy piping.An ejector4is provided within a constant-pressure chamber3formed in an outer shell2. A connecting pipe19communicated with an outlet of a diffuser and a connecting pipe communicated with an inlet of a nozzle extend outward of the shell, and a suction port is open to the inside of the constant-pressure chamber3through a check valve. The connecting pipe19is communicated with the constant-pressure chamber3through a check valve10, and is connected to a suction pipe of an engine (a source of a negative pressure). The connecting pipe on the inlet side of the nozzle is connected to an air cleaner (the atmosphere). A negative pressure is directly supplied from the connecting pipe19to the constant-pressure chamber3through the check valve10. The ejector4is operated to supply a high degree of vacuum to the constant-pressure chamber3through the suction port. The ejector4is provided within the constant-pressure chamber3so as to achieve space-saving. The check valve10is provided in the ejector4and the connecting pipe19is extended outward of the shell, so as to enable easy piping.

REFERENCES:
patent: 3754841 (1973-08-01), Grabb et al.
patent: 3824792 (1974-07-01), Grabb et al.
patent: 4554786 (1985-11-01), Takeuchi et al.
patent: 6625981 (2003-09-01), Ikeda et al.
patent: 6796772 (2004-09-01), Ikeda et al.

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