Power transfer unit

Patent · Tue Aug 16 00:00:00 EDT 1988

OSTI ID:6488720

McGowan, P T

This patent describes a power transfer apparatus comprising: a first reversible fluid motor-pump unit of selectively variable displacement having a respective high-pressure inlet/outlet port, a respective low-pressure inlet/outlet port, and a respective rotational input/output shaft for receiving and delivering mechanical power; a second reversible fluid motor-pump unit of fixed displacement having a respective high-pressure inlet/outlet port, a respective low-pressure inlet/outlet port, and a respective, rotational input/output shaft for receiving and delivering mechanical power; the first input/output shaft and the second input/output shaft coupling in opposing torque relationship for rotational power transfer between the first motor-pump unit and the second motor-pump unit with rotational direction of the coupled input/output shafts being dependent upon which unit is driven by the other; first pressure fluid source means communicating with the first motor-pump unit for delivering and receiving comparatively higher pressure fluid at the first high-pressure inlet/outlet port while respectively receiving and supplying lower pressure fluid at the first low-pressure inlet/outlet port; second pressure fluid source means communicating with the second motor-pump unit for delivering and receiving relatively higher pressure fluid at the second high-pressure inlet/outlet port while receiving and supplying lower pressure fluid at the second low-pressure inlet/outlet port; means sealingly separating the first and the second fluid source means from one another to prevent pressure fluid communication therebetween.

• Assignee: Allied Signal Inc., Morris Township, Morris County, NJ
• Patent Number(s): US 4763472
• OSTI ID: 6488720
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
CONVERSION
DESIGN
ENERGY CONVERSION
EQUIPMENT
FLUID MECHANICS
FLUIDS
HYDRAULIC EQUIPMENT
HYDRAULIC FLUIDS
HYDRAULICS
MACHINERY
MECHANICS
OPERATION
PRESSURIZING
PUMPS
WORKING FLUIDS