Air vane carburetor with adjustable speed

Details Air vane carburetor with adjustable speed Air vane carburetor with adjustable speed

1978-06-15

1980-09-09

Myhre, Charles J.

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

56 102, 123198D, 123403, F02D 1102

Patent

active

042212022

ABSTRACT:
Disclosed herein is a lawn mower including a blade housing, wheels for supporting the blade housing for movement along the ground, a rotary blade supported in the blade housing, and an internal combustion engine supported by the blade housing and rotatably driving the blade. The internal combustion engine includes a carburetor, a movable throttle control for controlling fluid flow through the carburetor, the throttle control being movable from an open position to a flow restricting position, a movable air vane connected to the throttle control for moving the throttle control, and a fan for forcing air against the air vane and for urging the throttle control to the flow restricting position. The engine further includes a spring connected to the throttle control for urging the throttle control to the open position, and a control member connected to the spring, the control member being movable between a first spring force level position and a second spring force level position for varying the force of the spring on the throttle control.

REFERENCES:
patent: 3199530 (1965-08-01), Svendsen
patent: 3640253 (1972-02-01), Glover et al.
patent: 3650252 (1972-03-01), Glover et al.
patent: 3905348 (1975-09-01), Williams
patent: 4108120 (1978-08-01), Woelffer

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