Internal-combustion engines – Charge forming device – Fuel flow regulation between the pump and the charge-forming...
Patent
1993-07-27
1994-03-29
Miller, Carl S.
Internal-combustion engines
Charge forming device
Fuel flow regulation between the pump and the charge-forming...
123DIG3, 123579, 251 8, 261 362, F02M 3704, F16K 704
Patent
active
052975266
ABSTRACT:
An improved glow-plug engine for use with a model airplane of the type that includes an output shaft for driving a propeller, a needle valve for controlling a flow of fuel into a carburetor, and a fuel line formed from resilient silicone rubber is provided, wherein the improvement comprises a pinch valve for controlling the flow of fuel through the fuel line which is located farther away from the propeller than the needle valve so that the fuel flow may be adjusted by the fingers of the engine's operator more safely. The pinch valve includes a valve body for securing a section of the resilient fuel line, and a pinching mechanism including a control member that is accurately extendible toward and retractable from a secured section of the fuel line to constrict or expand the fuel flow path defined by the secured section of the fuel line. In one embodiment, control member is a cam mounted on a lever which in turn is linked to a servo-mechanism. In another embodiment, the control member is a threaded rod that clampingly engages the section of tubing secured by the valve body. The pinch valve may be conveniently retrofitted on a conventional model airplane engine and used in combination with the needle valve, or it may supplant the needle valve.
REFERENCES:
patent: 2256948 (1941-09-01), Lloyd
patent: 2315183 (1943-03-01), Bicknell
patent: 2353269 (1944-07-01), Roth
patent: 2609187 (1952-09-01), Scott
patent: 2908476 (1959-10-01), Hidding
patent: 3002510 (1961-10-01), Wonneman
patent: 3086580 (1963-04-01), Capehart
patent: 3701513 (1972-10-01), Carter
patent: 3734072 (1978-05-01), Yamda
patent: 3824974 (1974-07-01), La Flame
patent: 3991143 (1976-11-01), Carter
patent: 4044744 (1977-09-01), Keefer
patent: 4055609 (1977-10-01), Phelps
patent: 4186707 (1980-02-01), Driggers
patent: 4569502 (1985-02-01), Elliott
patent: 4616801 (1986-10-01), Cewers et al.
patent: 4787406 (1988-11-01), Edwards et al.
patent: 4957072 (1990-09-01), Goldowsky
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