Bypass throttle control for a motor vehicle

Details Bypass throttle control for a motor vehicle Bypass throttle control for a motor vehicle

1990-03-23

1990-10-30

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Auxiliary air or oxygen added to combustible mixture

123339, F02M 306

Patent

active

049661221

ABSTRACT:
The invention is directed to a bypass throttle control for a motor vehicle. A cross section of a critical opening of the bypass throttle control past which a marginal edge of a throttle valve moves during its opening motion is designed such that no limiting edge of the opening that extends parallel to its marginal edge is present below an intermediate position of the throttle valve. As a result thereof, whistling noises that otherwise occur in integrated bypass throttle controls and an undesired deformation of a control characteristic curve are prevented.

REFERENCES:
patent: 3327694 (1967-06-01), Ariga
patent: 3575390 (1971-04-01), Bickhaus et al.
patent: 4146594 (1979-03-01), Raud
patent: 4201169 (1980-05-01), Michassouridis
patent: 4401074 (1983-08-01), Horiuchi et al.
patent: 4433661 (1984-02-01), Hartel et al.
patent: 4438049 (1984-03-01), Ammons
patent: 4474152 (1984-10-01), Horiuchi et al.
patent: 4870944 (1989-10-01), Matsumoto et al.

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