Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Patent
1984-08-31
1987-01-06
Wolfe, Jr., Willis R.
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
137907, 251 28, 251 615, F02M 2506
Patent
active
046338454
ABSTRACT:
A device for selectively modifying the vacuum level provided by a variable vacuum source is described, which generally includes a housing having two inlet ports and an outlet port. The first inlet port provides communication between the housing and the vacuum source. The second inlet provides communication between the housing and the atmosphere. The outlet port provides communication between the housing and a vacuum responsive device. A first valve assembly is contained in the housing for controlling the communication between the first inlet port and a control chamber in the housing, such that the maximum vacuum level reached by the vacuum source beyond a predeterminable vacuum level is maintained in the control chamber. A passageway is formed in the housing for providing communication between the control chamber and the outlet port. A second valve assembly in the housing is responsive to the vacuum level in the control chamber for permitting a predeterminable controlled communication between the second inlet port and the outlet port over a predeterminable vacuum level range.
REFERENCES:
patent: 2169683 (1939-08-01), Dunham et al.
patent: 2650581 (1953-09-01), Short et al.
patent: 2715418 (1955-08-01), Van Derbeck
patent: 3411522 (1968-11-01), Golden et al.
patent: 3616783 (1971-11-01), La Masters
patent: 3739797 (1973-06-01), Caldwell
patent: 3756210 (1973-09-01), Kuehl
patent: 3861642 (1975-01-01), Maddocks
patent: 3935850 (1976-02-01), King
patent: 3996955 (1976-12-01), Kawabata
patent: 4041914 (1977-08-01), Sugihara et al.
patent: 4044743 (1977-08-01), Eaton
patent: 4089349 (1978-05-01), Schenk
patent: 4130267 (1978-12-01), Inada
patent: 4151819 (1979-05-01), Inada
patent: 4166476 (1979-09-01), Yamanaka et al.
patent: 4180377 (1979-12-01), Itakura
patent: 4182291 (1980-01-01), Ito
patent: 4198937 (1980-04-01), Suzuki
patent: 4217969 (1980-08-01), Riddel
patent: 4218040 (1980-08-01), Brakebill
patent: 4254938 (1981-03-01), Inada et al.
patent: 4327773 (1982-05-01), Detweiler
patent: 4377146 (1983-03-01), Oniki et al.
patent: 4411603 (1983-10-01), Kell
Schmelzer Corporation
Wolfe, Jr. Willis R.
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