Vacuum union for an internal combustion engine

Details Vacuum union for an internal combustion engine Vacuum union for an internal combustion engine

1977-07-14

1979-12-18

Hershkovitz, Abraham

Power plants

Pressure fluid source and motor

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

60407, 60484, 60547R, 138 40, 138 44, B60T 1346

Patent

active

041787560

ABSTRACT:
A vacuum union having a tubular body adapted for transmitting a vacuum signal from an intake pipe of an internal combustion engine of a vehicle to a vacuum-operated brake booster of a vehicle brake device, and a branch pipe adapted for transmitting a vacuum signal from the tubular body to other vacuum-operated engine controlling devices. An orifice for restricting the level of the vacuum signal, to be transmitted to the brake booster, is located downstream of a branch pipe with respect to the intake pipe. Therefore, a drop in the vacuum level is effectively decreased for maintaining the proper operation of the brake device, even if the controlling devices are damaged, thereby causing the branch pipe to be opened to the atmosphere.

REFERENCES:
patent: 1762390 (1930-06-01), Gavaza
patent: 1807277 (1931-05-01), Bragg
patent: 1944456 (1934-01-01), Pearson
patent: 2732685 (1956-01-01), Oishei
patent: 3517685 (1970-06-01), Eastman
patent: 3707954 (1973-01-01), Nakada
patent: 4043123 (1977-08-01), Konishi

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