Fluid reaction surfaces (i.e. – impellers) – With control means responsive to non-cyclic condition... – Responsive to condition of torque or thrust of device or...
Patent
1985-11-04
1987-09-01
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
With control means responsive to non-cyclic condition...
Responsive to condition of torque or thrust of device or...
416 61, B64C 1138
Patent
active
046906142
ABSTRACT:
A torque meter is provided for use in conjunction with a layshaft having a forward and rear end and which is rotatably mounted in a housing. The layshaft is axially movable with respect to the housing between a forward and a retracted position while a gearing arrangement in mesh with the layshaft urges the layshaft towards its forward position with a force proportional to the shaft torque. The torque meter comprises a body secured to the housing adjacent the front end of the layshaft which forms a chamber open to the front end of the layshaft while a piston is axially slidably mounted within the chamber. The chamber is pressurized with a fluid, such as oil, which urges the piston against the front end of the layshaft with a force proportional to the pressure so that the piston balances the layshaft against the axial force imposed by the engine. A fluid pressure gauge determines the pressure within the chamber which varies proportionately with the layshaft torque. In addition, a piston ring on the piston opens the fluid chamber to an opening in the body and a passageway in the housing when the layshaft moves to its rearward position, indicative of a negative shaft torque condition, whereupon fluid discharges from the chamber, through the passageway, and activates a control assembly.
REFERENCES:
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patent: 2019966 (1935-11-01), Havill
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patent: 2766617 (1956-10-01), Tyler et al.
patent: 2801701 (1957-08-01), Coar
patent: 3225592 (1965-12-01), Greene
patent: 3253658 (1966-05-01), Bradley
Allen Keith
Keetley Reginald G.
Powell Jr. Everette A.
Teledyne Industries Inc.
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