Grease lubricating system employing an injector reset valve

Details Grease lubricating system employing an injector reset valve Grease lubricating system employing an injector reset valve

1995-06-07

1997-05-27

Denion, Thomas E.

Lubrication

Systems

With measuring or metering value system

184 8, F16N 2700

Patent

active

056323557

ABSTRACT:
A grease lubricating system includes a plurality of injectors for distributing grease to a plurality of lubrication points, an injector reset valve for resetting the injectors and a pump for supplying grease. The injector reset valve is located between the pump and the plurality of injectors and includes a piston and a large heavy duty spring which urges the piston into sealing engagement with an inlet port of the injector reset valve during a reset position of the valve. During a pressurizing portion of a pump cycle, grease entering the injector reset valve moves the piston out of sealing engagement with the inlet port of the injector reset valve enabling grease to flow from the inlet port through an internal chamber of the injector reset valve and out of a outlet port to input ports of the injectors through an injector distribution junction. Each injector then delivers grease to its respective lubrication point. During the depressurizing portion of a pump cycle, the spring in the injector reset valve causes the piston to move back to its reset position, the piston thereby displacing sufficient grease to lower the pressure of the grease at the input ports of the injectors so that the injectors reset.

REFERENCES:
patent: 1942097 (1934-01-01), Hallerberg
patent: 3119463 (1964-01-01), Jackson
patent: 3209956 (1965-10-01), McKenzie
patent: 3809184 (1974-05-01), Smith et al.
patent: 3995717 (1976-12-01), Kroffke
patent: 4711321 (1987-12-01), Hedlund

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