Gm Global Technolgoy Operations, Inc.

Delphi Technologies, Inc.

Mahle International Gmbh

Timothy J Skinner

Joseph M Bona

Joseph L Spurney

Ernesto Jose Gutierrez

Matthew R Warren

George T Bennett

Theodore R Cochran

John Barrett

Timothy S Jones

Weiming Ma

James A Mogavero

Ernesto J Gutierrez

John A Barrett

An electronic control valve having a valve stationary portion defining a substantially central bore extending along an axis of the valve, and a valve train including a movable member of the valve. The valve train moveable member is disposed in the central bore, and the valve train is adapted for reciprocal movement along the axis. A mass is engaged is with the valve train and adapted for reciprocal movement along the axis. A biasing means is disposed between the valve train and the mass. Reciprocal movements of the mass along the axis induced by forces exerted along the axis by the valve train are transmitted through the biasing means, whereby reciprocal movement of the valve train along the axis is dynamically reduced by the mass.

Electronic control valve having an integral non-contact noise mitigation device

An over-torque protector device including a drive pulley and a drive hub. A plurality of receptacles extends from a pulley face, and a plurality of links extends from a drive hub plate. Each link has a first end pivotably engaged to the plate and a second end provided with coupling means for releasably coupling the drive hub and the drive pulley for unified rotation through operative engagement with the receptacles in a device engaged state, the coupling means and the receptacles out of operative engagement in a device released state. The coupling means and the receptacles have relative axial movements induced by relative rotation between the drive pulley and the drive hub. Transition from the device engaged state to the device released state is induced by the relative axial movements of the coupling means and the receptacles.

Over-torque protector device for a compressor

The invention provides a compressor with a shut off valve disposed between the crank case and the suction cavity. The valve is moveable between an open and closed position in response to the pressure in the discharge cavity of the compressor. The valve is an on/off valve and is operable rapidly depressurize the interior of the crank case when the compressor transitions from a minimum stroke. The valve can define first and second fluid pathways. The first fluid pathway can be larger than the second fluid pathway and be selectively opened and closed. The second fluid pathway can be permanently open and act as a bleed between the crank case and the suction cavity.

Crank case shut off valve

A wobble plate compressor includes a non-rotary socket plate mounted on a journal of a rotary drive plate. The drive plate includes a bushing and a needle-type thrust bearing to accommodate relative rotary movement between the plates. The socket plate and drive plate are retained together by an assembly including a square-edged annular channel formed in a recessed journal, a thrust washer for engaging the journal and the bushing and a dished retaining ring. The dished retaining ring also includes square edges mating with the adjacent sides of the channel. The retaining ring engages the thrust washer so as to provide a preload force to seat the washer on the journal and for biasing the socket plate against the thrust bearing. The retaining ring is characterized by a three degree dish angle when compressed between two flat parallel surfaces with an applied load of 30N.

Retainer assembly with dished retaining ring

A variable displacement refrigerant compressor includes a plurality of axially reciprocating pistons connected to a non-rotary wobble plate. A drive shaft supplies a rotational input to axially reciprocate the pistons within their respective cylinders. Gaseous refrigerant is admitted to each cylinder through a suction valve and discharged from each cylinder through a discharge valve. Each discharge valve opens to a common discharge cavity, wherein one fluid outlet provides egress for all refrigerant discharged from each of the cylinders. A variable restriction attenuator is disposed in the discharge cavity. The attenuator includes a first orifice having a movable valve member biased into sealing engagement therewith. The attenuator also includes at least one second orifice through which discharge fluid bypasses the movable valve member and first orifice and flows directly to the fluid outlet. The movable valve member may be either a spherical ball, poppet or flapper type valve.

Refrigerant compressor having variable restriction pressure pulsation

The bellows in the stroke control valve of a variable stroke axial piston wobble plate refrigerant compressor is partially filled with an anti-freeze solution and continuously exposed to both suction pressure and crankcase pressure. This has the effect of reducing the piston stroke at high compressor speeds while increasing suction pressure to maintain some air conditioning performance.

Variable displacement refrigerant compressor passive destroker

A passive destroker mechanism operated by centrifugal force is added to a variable stroke axial piston wobble plate refrigerant compressor. The destroker operates at a predetermined compressor speed to communicate the discharge side of the compressor with its sealed crankcase to thereby provide a controlled discharge gas bleed thereto to destroke the compressor to a desired displacement. Then after the speed is reduced below such trigger speed, the destroker mechanism operates to return the compressor to its normal stroke control condition.

Variable displacement compressor passive destroker

There is disclosed in a refrigerant compressor whose crankcase is vented to compressor suction, a passive lubrication system having a lubrication-vent path arrangement which vents the crankcase while also assuring lubrication of the compressor's critical bearing surfaces using oil entrained in the refrigerant and wherein centrifugal action is utilized to always maintain some amount of oil in the crankcase for assured lubrication of the critical bearing surfaces under all operating conditions while also minimizing the amount of oil permitted to circulate in the refrigerant circuit for improved air conditioning performance.

Refrigerant compressor lubrication system

There is disclosed in a refrigerant compressor whose displacement is controlled by crankcase-suction pressure differential, a control valve arrangement which is responsive to both compressor suction and discharge pressures to provide controlled communication of same with the compressor crankcase so that the compressor displacement and thereby the discharge flow rate is caused to increase with increasing discharge pressure as well as with increasing suction pressure.

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E. Amherst, NY, United States of America

Timothy J Skinner