Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1975-07-30
1976-12-14
Lazarus, Ronald H.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
123 97R, 261DIG19, F02D 1108
Patent
active
039969045
ABSTRACT:
A throttle positioner adapted to be operated by an intake vacuum system to maintain a throttle valve at a throttle opening position for a predetermined time when an accelerating pedal has been released while an automobile is running, wherein a vacuum control valve is provided to selectively nullify said intake vacuum operating system as long as the rotational speed of an engine is above a predetermined level, said vacuum control valve being controlled by delivery air pressure of an air pump driven by the engine.
REFERENCES:
patent: 3547089 (1970-12-01), Pierlot
patent: 3596642 (1971-08-01), Nakata
patent: 3721222 (1973-03-01), Shioya
patent: 3744470 (1973-07-01), Clarke
Hase Masaru
Kobuki Shinzo
Lazarus Ronald H.
Toyota Jidosha Kogyo Kabushiki Kaisha
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