Throttle valve connection piece

Details Throttle valve connection piece Throttle valve connection piece

1992-06-22

1993-05-11

Kamen, Noah P.

Internal-combustion engines

Charge forming device

Heating of combustible mixture

261142, 261DIG20, F02G 500

Patent

active

052092119

ABSTRACT:
Heating devices are used to prevent icing and deposition of fuel on the throttle valve under adverse operating conditions; these device comprise electrical resistance hot wires applied to the surface of the throttle valve, yet these wires lead to undesired turbulence in the fuel-air mixture flow. As the length of time in operation increases, the efficiency of the hot wires is lessened by corrosion of their surface. These disadvantages are avoided by integrating the heating device with the component to be heated. To this end, the heating device is disposed in an axial bore of the throttle valve shaft. This arrangement is used especially with mixture-compressing internal combustion engines equipped with carburetors or central injection systems.

REFERENCES:
patent: 2719519 (1955-10-01), Sutton
patent: 3916859 (1975-11-01), Fossum

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