Constant vacuum type carburetor

Details Constant vacuum type carburetor Constant vacuum type carburetor

1998-08-27

2000-07-25

Chiesa, Richard L.

Gas and liquid contact apparatus

Fluid distribution

Pumping

261 691, 261DIG38, 261DIG68, F02M 1704

Patent

active

060927933

ABSTRACT:
A vacuum actuated valve for a constant vacuum type carburetor is formed with a first guide hole, a jet needle engaging step portion and a jet needle insertion hole therein. A spring seat has an outer cylindrical portion in an upper portion thereof, and an inner cylindrical portion and a jet needle supporting cylindrical portion therein. The outer cylindrical portion of the spring seat is arranged on the outer circumference of a diaphragm plate. The jet needle supporting cylindrical portion is inserted within a first guide hole. A lower end of a vacuum actuated valve return spring engages with a spring seating flange of the spring seat. A flange portion of a jet needle is restricted by the jet needle engaging step portion and the jet needle supporting cylindrical portion.

REFERENCES:
patent: 3174731 (1965-03-01), Kalert, Jr.
patent: 3640512 (1972-02-01), Morgenroth
patent: 3738623 (1973-06-01), Tuckey
patent: 3825237 (1974-07-01), Aoyama et al.
patent: 4323521 (1982-04-01), Morgenroth
patent: 4481152 (1984-11-01), Kobayashi et al.
patent: 4632788 (1986-12-01), Jones
patent: 5599484 (1997-02-01), Tobinai
patent: 5720906 (1998-02-01), Yamanaka et al.

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