Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1978-07-17
1979-07-24
Lazarus, Ira S.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
123 97R, F02D 1110
Patent
active
041619285
ABSTRACT:
A throttle body assembly comprises a throttle body having an induction passage therein with a pair of rotatively coupled, parallel shafts extending across the induction passage. A pair of blades are affixed to each shaft with each blade comprising a main blade section for selectively restricting the induction passage in accordance with shaft rotation and an auxiliary blade section which presents a curved confronting surface to an adjacent wall portion of the induction passage so as to preclude intrusion of any appreciable amount of induction air between each blade and the corresponding wall portion over the operative rotational range of the shafts. A fuel spray bar is disposed centrally in the induction passage upstream of the throttle blades for spraying fuel into the induction air stream. A pressure regulator assembly is disposed on the fuel spray bar and contains main and auxiliary pressure relief valve assemblies via which fuel from a control pump is delivered to the spray bar. A constant engine idle speed control comprises an electric motor which is controllably rotatable in opposite directions, when the throttle control linkage is in the idle position, to adjust the position of the throttle blades so that a substantially constant engine idle speed is maintained which is independent of engine load and temperature. The motor is operatively coupled with the throttle shafts via novel linkage for securing at-idle adjustment of the blades.
REFERENCES:
patent: 3556064 (1971-01-01), Date et al.
patent: 3603298 (1971-09-01), Toda et al.
patent: 3721223 (1973-03-01), Randan et al.
patent: 3809034 (1974-05-01), Durichen
Graham Kenneth A.
Teague Kenneth W.
Chrysler Corporation
Lazarus Ira S.
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