Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1974-06-21
1977-12-13
Lazarus, Ronald H.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
123 52M, 123 52MV, 123127, 261 23A, F02M 3100
Patent
active
040623343
ABSTRACT:
A fuel system for an internal combustion engine comprises a pair of carburetors provided one each on the exhaust and intake side of the engine. The fuel-air mixture from the first carburetor is heated by exhaust gas before being introduced into an intake manifold through a passage within a cylinder head. Throttle valves are associated with the respective carburetors and are controlled in an interlocked manner so as to open the throttle valve associated with the first carburetor while maintaining the other throttle valve closed during a partial load operation, and to open the throttle valve associated with the second carburetor to supply the air enriched mixture to the cylinders while closing the first mentioned throttle valve during a full load operation. Alternatively, a combined use of supply from the first and second carburetors concurrently may be chosen.
REFERENCES:
patent: 2430693 (1947-11-01), Udole
patent: 2460046 (1949-01-01), Vincent
patent: 2647502 (1953-08-01), Braun
patent: 2737375 (1956-03-01), Kittler
patent: 2768818 (1956-10-01), Egererer
patent: 2798703 (1957-07-01), Carlson
patent: 3003488 (1961-10-01), Carlson
patent: 3021827 (1962-02-01), Brunner
patent: 3310045 (1967-03-01), Bartholemew
patent: 3845746 (1974-11-01), Elsbett
Konomi Toshiaki
Toda Tadahide
Lazarus Ronald H.
Toyota Jidosha Kogyo Kabushiki Kaisha
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