Negative pressure generating system for internal combustion engi

Details Negative pressure generating system for internal combustion engi Negative pressure generating system for internal combustion engi

1976-05-21

1977-08-23

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

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

60411, F15B 300

Patent

active

040431231

ABSTRACT:
A negative pressure generating system for an internal combustion engine powered vehicle, comprising a brake booster incorporated in the vehicle and adapted for an increase in braking power, an air cleaner for cleaning air to be supplied to the internal combustion engine, an air pump which receives air from said air cleaner and delivers the air to said internal combustion engine, and a valve disposed among said brake booster, said air cleaner and said air pump and operative in response to the booster pressure in said brake booster on receiving said pressure as an input signal, thereby interrupting air communication between said air pump and said air cleaner, with the result that the negative pressure arising on the suction side of said air pump is used as a negative pressure source for operating said brake booster.

REFERENCES:
patent: 2142514 (1939-01-01), Jones
patent: 2705870 (1955-04-01), Holton
patent: 2732685 (1956-01-01), Oishei
patent: 2844003 (1958-07-01), Ingres
patent: 2863286 (1958-12-01), Doane

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