F - Mech Eng,Light,Heat,Weapons – 02 – D
Patent
F - Mech Eng,Light,Heat,Weapons
02
D
123/2, 188/3
F02D 11/02 (2006.01) A01D 34/68 (2006.01) B60K 28/04 (2006.01) F02B 63/02 (2006.01) F02B 77/08 (2006.01)
Patent
CA 1193983
ABSTRACT A system for quickly stopping the internal combus- tion engine of a powered implement having a deadman control normally biased toward a first position and actuable by the implement operator to a second position for normal implement operation and optionally to a third position for actuating an engine starting mechanism is disclosed. The engine has a flywheel coupled thereto for rotation with the engine crankshaft and that flywheel is provided with an annular friction surface of generally cylindrical configuration disposed coaxial with the axis of rotation of the flywheel. A braking member having a second friction surface is normally biased into engagement with the flywheel friction surface and coupled to a deadman control so that the two friction surfaces will be disengaged upon movement of the deadman control to a second or operational position by the implement operator. An arrangement for disabling the engine ignition system upon release of the deadman control and prior to engagement of the friction surfaces is disclosed. The brake is self-actuating in the sense that once the friction surfaces are engaged, continued flywheel rotation forces or wedges the two braking surfaces together with substantially greater force than the force causing initial contact between those two surfaces.
409312
Macrae & Co.
Tecumseh Products Company
LandOfFree
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