Variable power transmission and absorption device
AssigneeThe Jacobs Manufacturing Company
InventorRaymond N. Quenneville
Life of this patent
Estimating the term…
Abstract
An apparatus is provided which is adapted to deliver or absorb variable amounts of torque or to deliver variable quantities of an incompressible fluid at a predetermined pressure. The device comprises a positive displacement pump capable of pumping a compressible fluid, an incompressible fluid or a mixture of a compressible fluid and an incompressible fluid together with appropriate pressure control and flow control mechanisms, check valve mechanisms and interconnecting duct means.
Claims37
An apparatus comprising a first member, a second member, positive displacement pump means capable of doing work on a compressible fluid and recovering substantially all of such work during an expansion cycle and having an inlet port and an outlet port and interconnecting said first member and said second member, said positive displacement pump being adapted to pump a compressible fluid, an incompressible fluid and a mixture of a compressible fluid and an incompressible fluid, flow control means, duct means communicating between said flow control means and said inlet port of said positive displacement pump means, pressure control means communicating with said outlet port of said positive displacement pump means, and sump means containing an incompressible fluid and communicating with said flow control means.
An apparatus comprising a rotatable drive member, a non-rotatable driven member, positive displacement pump means capable of doing work on a compressible fluid and recovering substantially all of such work during an expansion cycle and having an inlet port and an outlet port and interconnecting said rotatable drive member and said non-rotatable driven member, said positive displacement pump being adapted to pump a compressible fluid, an incompressible fluid and a mixture of a compressible fluid and an incompressible fluid, incompressible fluid flow control means including adjustable valve means, first duct means communicating between said flow control means and said inlet port of said positive displacement pump means, pressure control means communicating with said outlet port of said positive displacement pump means, sump means containing an incompressible fluid, second duct means communicating between said pressure control means and said sump means, third duct means communicating between said sump means and said flow control means, spring means interconnecting said adjustable valve means and pressure control means and biasing said pressure control means, and check valve means communicating with said first duct means.
An apparatus for delivering a variable quantity of incompressible fluid at a predetermined pressure comprising a drive member, a driven member, positive displacement pump means capable of doing work on a compressible fluid and recovering substantially all of such work during an expansion cycle and having inlet and outlet ports and interconnecting said drive member and said driven member, said positive displacement pump being adapted to pump a compressible fluid, and incompressible fluid and a mixture of a compressible fluid and an incompressible fluid, pressure control means communicating with said outlet port of said positive displacement pump, flow control means adapted to control the flow of low pressure incompressible fluid, first duct means communicating between said flow control means and said inlet port of said positive displacement pump means, check valve means communicating with said first duct means, sump means containing an incompressible fluid, and second duct means communicating between said flow control means and said sump means.
Dependencies are inferred from the claim text.