Internal-combustion engines – Multiple cylinder
Patent
1990-04-20
1991-03-19
Dolinar, Andrew M.
Internal-combustion engines
Multiple cylinder
123586, 123339, F02B 2702, F02D 3302
Patent
active
050001302
ABSTRACT:
A number of embodiments of induction systems for internal combustion engines having plural combustion chambers with each being served by an intake passage having a respective throttle valve. First and second plenum chambers communicate with the intake passage through relatively long and relatively short conduits for improving low and high speed running. A pressure regulating chamber is also provided. This communicates with all of the intake passages between the throttle valve and the combustion chamber. A first control valve is provided in each of the communicating passageways for controlling the communication of the pressure regulating chamber with the intake passage. A second conduit interconnects the pressure regulating chamber only with one of the intake passages upstream of the throttle valve and a second control valve controls the flow through this conduit. Various control strategies and geometric relationships are disclosed.
REFERENCES:
patent: 4423706 (1984-01-01), Onodera
patent: 4425887 (1984-01-01), Knapp et al.
patent: 4461253 (1984-07-01), Kobashi et al.
patent: 4569318 (1986-02-01), Fujimura et al.
patent: 4715349 (1987-12-01), Hibino et al.
patent: 4765285 (1988-08-01), Kobayashi
Beutler Ernest A.
Dolinar Andrew M.
Moulis Thomas N.
Yamaha Hatsudoki Kabushiki Kaisha
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