Internal combustion engine inlet manifold

Details Internal combustion engine inlet manifold Internal combustion engine inlet manifold

1990-12-07

1991-09-17

Okonsky, David A.

Internal-combustion engines

Multiple cylinder

F02M 3510

Patent

active

050484699

ABSTRACT:
An internal combustion engine inlet manifold comprises upper and lower castings which together define a plenum and a vacuum reservoir separated by a common dividing wall. Inlet tracts connect the plenum to an engine to be supplied with air and an inlet port connects the plenum to atmosphere through a variable throttle. The reservoir includes an outlet port for connection of the reservoir to a device requiring a source of vacuum and is connected to the plenum by means of a one way flow valve operable to permit the egress of air from the reservoir when the pressure in the plenum is lower than that subsisting in the reservoir but to prevent the flow of air from the plenum to the reservoir when the pressure in the plenum is higher than that subsisting in the reservoir.

REFERENCES:
patent: 4619226 (1986-10-01), Ueda et al.
patent: 4671217 (1987-06-01), Hitomi et al.
patent: 4819588 (1989-04-01), Itoh et al.
patent: 4932369 (1990-06-01), Parr
Patent Abstracts of Japan, vol. 8, No. 154 (M-310), Jul. 18, 1984, & JP-A-59 050849 (Nitsushin Kogyo K.K.), Mar. 24, 1984.

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