F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
123/5
F16D 31/02 (2006.01) B63H 3/10 (2006.01)
Patent
CA 1267050
APPARATUS AND METHOD FOR LOAN CONTROL OF AN ENGINE ABSTRACT OF THE DISCLOSURE Apparatus is for controlling load on an engine, particularly a marine engine powering a controllable pitch propeller which serves as an engine loading device. Apparatus cooperates with a circuit having a supply fluid at a constant supply pressure, and a control fluid at a variable control pressure reflecting engine load. The apparatus has a signal receiver to receive a load demand signal from an operator, and a positioner apparatus with a positioner output which cooperates with the loading device of the engine. The positioner apparatus receives the supply and control fluids and has a partition separating the fluids to permit interaction therebetween to control the positioner output. The apparatus has a hydraulic fluid valve to control flow of hydraulic fluid relative to the positioner apparatus, the fluid valve being connected to the positioner output and an output of the signal receiver so as to be responsive to relative positions of both outputs. The apparatus provides a relatively simple system using hydraulic fluid for accurate load control which responds quickly to an engine overload occurrence so as to reduce the load on the engine quickly to reduce or prevent engine damage. Complex electronics are not required, permitting servicing by persons familiar with mechanical/hydraulic systems. Furthermore, the device has a fail-safe system which accommodates a complete hydraulic pressure failure without damage to the components. Also, a manual over ride provision can be incorporated to permit reduction of load manually, without assistance from hydraulic pressure, should hydraulic pressure fail.
516847
Carver & Company
Kobelt Jacob
LandOfFree
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