Joseph E Swift

US Patent:

44772319, Oct 16, 1984

Filed:

Mar 17, 1983

Appl. No.:

6/476104

Inventors:

Joseph E. Swift - South Windsor CT

International Classification:

F04B 106

US Classification:

417221

Abstract:

A variable displacement vane type hydraulic pump of simple construction automatically varies its output flow rate, between a maximum value and zero, in response to changes in the output pressure. The pump is characterized by a laterally shifting flow modulating member located in a central recess of a vane carrying rotor and whose lateral position is dictated by the pressure existing at the outlet port. The pump can run continuously at a no-flow condition without overheating or stalling and its rotor direction may be reversed by merely reversing the functions of its two ports.

US Patent:

45094861, Apr 9, 1985

Filed:

Apr 29, 1983

Appl. No.:

6/489792

Inventors:

Joseph E. Swift - South Windsor CT

International Classification:

F02M 3900

US Classification:

123453

Abstract:

A fuel supply system for an internal combustion engine continuously injects fuel into the intake air stream for each cylinder or other combustion zone. The fuel metering for each other combustion zone is performed by a metering unit individually serving that zone and responsive to a control pressure the value of which is dependent on various engine conditions so that the rate of fuel injection meets engine requirements. A cold idle feature provides an enhanced idle fuel rate of flow following start up of a cold engine. The system may be designed to retain system pressure for a long time after stopping the engine to prevent vapor lock and there are no atmospheric vents anywhere in the system so there are no evaporative emissions to contend with during running or shut down of the system.

US Patent:

40375749, Jul 26, 1977

Filed:

May 21, 1976

Appl. No.:

5/688829

Inventors:

Joseph Edward Swift - South Windsor CT

Assignee:

Stanadyne, Inc. - Windsor CT

International Classification:

F02M 5920

US Classification:

123139AQ

Abstract:

In a fuel injection pump having a cam and pump plungers movable relative to the cam to translate the contour of the cam into a sequence of pumping strokes. An advance piston connected to the cam to adjust the timing of the pumping strokes is controlled by a hydraulic pressure which increases with engine speed. The advance piston mounts a servo valve having a preloaded biasing spring to prevent the delivery of hydraulic pressure to act on said advance piston until a predetermined speed is reached. A movable stop controls the maximum retard position of the advance piston and responds to the hydraulic pressure which is continuously applied to the movable stop and acts to advance the timing a fixed amount as soon as the engine fires. A load sensing piston actuated by a load related source of fluid pressure is operatively connected to the other end of the advance piston to urge the advance piston in a direction to retard the timing of the pumping stroke in response to increased engine load.

US Patent:

40375730, Jul 26, 1977

Filed:

May 21, 1976

Appl. No.:

5/688828

Inventors:

Joseph Edward Swift - South Windsor CT

Assignee:

Stanadyne, Inc. - Windsor CT

International Classification:

F02M 5920

US Classification:

123139AQ

Abstract:

A fuel injection pump having a cam and pump plungers movable relative to the cam to translate the contour of the cam into a sequence of pumping strokes is disclosed. An advance piston connected to the cam to adjust the timing of the pumping strokes is controlled by a hydraulic pressure which increases with engine speed. The advance piston mounts two control pistons one of which controls the delivery of hydraulic pressure to the advance piston after a predetermined engine speed is reached and the other bypasses the first to control the delivery of the hydraulic pressure during starting and until a lower engine speed is reached.