Rotary actuator with energy conservation

Patent · Tue Jul 03 00:00:00 EDT 1984

OSTI ID:6272896

Pauliukonis, R S

An energy conserving air motor with rotary actuation includes a pair of cooperating different diameter pistons coaxially arranged and connected rigidly to one another by a central connecting member provided with spur gear section adaptable of receiving a meshing pinion assembled inside an elongated housing provided with a diffential diameter bore passing therethrough and adaptable of receiving inside a larger diameter section which is blind a larger piston while smaller diameter section which is provided with fluid supply and exhaust port means receives smaller diameter piston while said pinion entering said housing perpendicularly substantially central to the housing ends so as to rotate therein when pistons move linearly inside bore between a first normally atmospheric and a second energized positions in response to the working fluid pressure supplied via fluid supply and exhaust port means by way of a 3-way solenoid or pilot operated directional valve so as to allow energization of the small diameter piston, initially atmospheric, with an end force large enough to shift piston assembly into the second energized position at which time working fluid enters backside of the larger piston via internal pilot porting provided therebetween to exert a much larger end force than that prevailing over the small piston, automatically returning piston assembly into the first original position for an eventual exhaust of the working fluid via 3-way valve and cycle repetition saving energy.

• Assignee: EDB-85-013147
• Patent Number(s): US 4457210
• OSTI ID: 6272896
• Resource Relation: Patent File Date: Filed date 24 Sep 1982; Other Information: PAT-APPL-423140
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
PNEUMATIC MOTORS
DESIGN
AIR FLOW
COMPRESSIBLE FLOW
ENERGY CONSERVATION
ENERGY EFFICIENCY
EXHAUST SYSTEMS
OPERATION
PISTONS
PNEUMATICS
SOLENOIDS
VALVES
CONTROL EQUIPMENT
EFFICIENCY
ELECTRIC COILS
ELECTRICAL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FLUID MECHANICS
GAS FLOW
MECHANICS
MOTORS
320303* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Equipment & Processes