Gm Global Technolgoy Operations, Inc.

Gas Research Institute

Diesel Kiki Co., Ltd.

Other

Daicel Chemical Industries, Ltd.

Interlake, Inc.

Diesel Kiki Co., Ltd. (japanese Corp.)

James C Swain

David L Thomas

Larry E Schluer

Donald L Cooper

John P Wilcox

Donald J Hackman

Jan B Yates

Alan A Alten

John D Dickson

An apparatus for controlling air/fuel ratio in a carburetted single cylinder internal combustion engine, including an apparatus for preventing fuel from being drawn into a carburetor, and, in turn, toward the cylinder inlet, as a result of air flow oscillations occurring during the portion of an engine cycle in which the at least one inlet valve is closed.

Carburetor air/fuel ratio control for single cylinder engines

A compact, 4-chamber gas meter comprising crankpost and valve drive mechanisms whereby each reciprocating valve moves from a stroke shifting point near center to a stroke endpoint and back to said stroke shifting point with each 180.degree. rotation of the crankpost and each stroke of each diaphragm occurs over said 180.degree. rotation of the crankpost.

Gas meter

Apparatus and methods are provided for relieving the compression pressure while starting an internal combustion engine 10. A passage 12 communicates via end openings 22 and 22a between the compression space 13 and the exhaust region 19 in the head 20 of the engine. A spring 16 presses against one side of a piston 15 in a valve 21, holding an end portion 23 away from the opening 22 until the engine speed exceeds the cranking speed. The pressure of the engine's lubricating oil 18 on the opposite side of the piston 15 then forces the end portion 23 against the opening 22, to close the passage 12 and permit the engine to continue running with full compression.

Engine compression release

A compressor assembly for pumping a recirculating refrigerant including input and output shafts rotatably supported within a housing and a pressure responsive clutch disposed therebetween for selectively translating torque from the input shaft to the output shaft to drive the compressor. An auxiliary clutch compressor is employed for generating an auxiliary refrigerant discharge pressure and a control valve is moveable between first and second positions to either route refrigerant discharge pressure away from the clutch or to bear upon the clutch so as to translate torque between the input and output shafts. The auxiliary compressor includes a piston and a cylinder with the piston operatively mounted to an eccentric portion of the input shaft and driven by the input shaft for reciprocal motion within the cylinder to generate an auxiliary refrigerant discharge pressure.

Compressor assembly having a clutch triggered by a small compressor and

A compressor assembly for pumping a recirculating refrigerant including input and output shafts rotatably supported within a housing and a pressure responsive clutch disposed therebetween for selectively translating torque from the input shaft to the output shaft to drive the compressor. An auxiliary clutch compressor is employed for generating an auxiliary refrigerant discharge pressure and a control valve is moveable between first and second positions to either route refrigerant discharge pressure away from the clutch or to bear upon the clutch so as to translate torque between the input and output shafts.

Compressor assembly having control valve for triggered pressure actuated

A scroll type fluid displacement machine (10) with a housing (12) a fluid inlet port (78) and a fluid outlet port (76) has an annular piston (88) that biases the balls (90) of the ball coupler and the orbital scroll (29) toward the fixed scroll (18) to move the axial tips (40 and 58) of the wraps (34 and 52) into sealing contact with the end plates (30 and 48) when fluid is pumped into the annular chamber (120). A control system (28) is provided to control the axial position of the orbital scroll (20). The control system (28) includes a solenoid valve (176) which directs fluid from a small trigger compressor (174) to the annular chamber (120) to axially move the orbital scroll (20) into sealing contact with the fixed scroll (18). The solenoid valve (176) also directs fluid from the exhaust chamber (42) to the annular chamber (120) to maintain the orbital scroll (20) in sealing contact with the fixed scroll (18). The solenoid valve (176) also directs fluid from the annular chamber (120) to the sump (232) to stop fluid compression by the scrolls (18 and 20).

Axial actuator for unloading an orbital scroll type fluid material

A scroll compressor (10) with a fixed scroll (18) and orbital scroll (20) has an axial thrust and anti-rotation assembly (22), a drive assembly (24), a balance assembly (26) and a control system (28). The drive assembly (24) includes a crankshaft (116) and a bushing assembly (108). The bushing assembly includes a bushing body (146) with a slot (154) journaled on the orbital scroll and a drive lug (150) positioned in the slot and non-rotatably secured to the crankshaft. Springs (156) bias the bushing body toward a position in which the axis of the bushing body (178) coincides with the axis (176) of the crankshaft (116) and the crankshaft can rotate without moving the orbital scroll (20). The bushing body can be moved by compressed fluid to a position in which the springs are compressed, the scroll wraps (34 and 56) are in sealing contact and the drive assembly will drive the orbital scroll (20) in a circular orbit with a radius R.sub.o. The balance assembly includes two weight assemblies (184 and 186) with four weights (192, 196, 210 and 214) that are rotated about the axis of cylindrical extension (182) in response to movement of the drive lug (150) relative to the bushing body (146) between a position in which the orbital scroll is balanced and a position in which the weights balance themselves when the crankshaft rotates without driving the orbital scroll. The control system includes a trigger compressor (242) and a solenoid valve (246) which directs compressed fluid to the sump (88) when the valve is open and to the chamber (162) in the bushing assembly when the valve is closed.

Control system for a clutchless scroll type fluid material handling

A scroll compressor (10) with a fixed scroll (18) and an orbital scroll (20) has an axial thrust and anti-rotation assembly (22), a drive assembly (24), a balance assemblly (26) and a control system (28). The drive assembly (24) includes a crankshaft (116) and a bushing assembly (108). The bushing assembly includes a bushing body (146) with a slot (154) journaled on the orbital scroll and a drive lug (150) positioned in the slot and non-rotatably secured to the crankshaft (116). Springs (156) bias the bushing body toward a position in which the axis of the bushing body (178) coincides with the axis (176) of the crankshaft and the crankshaft can rotate without moving the orbital scroll (20). The bushing body (146) can be moved by compressed fluid to a position in which the springs (156) are compressed, the scroll wraps (34 and 56) are in sealing contact and the drive assembly will drive the orbital scroll (20) in a circular orbit with a radius R. The balance assembly includes two weight assemblies (184 and 186) with four weights (192, 196, 210, and 214) that are rotated about the axis of a cylindrical extension (182) in response to movement of the drive lug (150) relative to the bushing body (146) between a position in which the orbital scroll is balanced and a position in which the weights balance themselves when the crankshaft (116) rotates without driving the orbital scroll.

Inertial balance system for a de-orbiting scroll in a scroll type fluid

A scroll compressor (10) with a fixed scroll (18) and orbital scroll (20) has an axial thrust and anti-rotation assembly (22), a drive assembly (24), a balance assembly (26) and a control system (28). The drive assembly (24) includes a crankshaft (116) and a bushing assembly (108). The bushing assembly includes a bushing body (146) with a slot (154) journaled on the orbital scroll and a drive lug (150) positioned in the slot and non-rotatably secured to the crankshaft (116). Springs (156) bias the bushing body toward a position in which the axis of the bushing body (178) coincides with the axis (176) of the crankshaft and the crankshaft can rotate without moving the orbital scroll. The bushing body (146) can be moved by compressed fluid to a position in which the springs (156) are compressed, the scroll wraps (34 and 56) are in sealing contact and the drive assembly will drive the orbital scroll in a circular orbit with a radius R.sub.0. The balance assembly includes two weight assemblies (184 and 186) with four weights (192, 196, 210 and 214) that are rotated about the axis of a cylindrical extension (182) in response to movement of the drive lug (150) relative to the bushing body (146) between a position in which the orbital scroll (20) is balanced and a position in which the weights balance themselves when the crankshaft (116) rotates without driving the orbital scroll. The control system (28) includes a trigger compressor (242) and a solenoid valve (246) which directs compressed fluid to the sump (88) when the solenoid valve is open and to the chamber (162) in the bushing assembly (108) when the solenoid valve is closed.

Radical actuator for a de-orbiting scroll in a scroll type fluid

A compressor assembly for pumping a recirculating refrigerant including a power input shaft, a power output shaft and a clutch disposed therebetween for translating torque from the power input shaft to the power output shaft. The clutch includes a solenoid for generating an electromagnetic force and an actuator including input friction plates mounted for rotation with the input shaft and output friction plates mounted for rotation with the output shaft. The input and output friction plates are adapted for frictional engagement to translate torque between the input and output shafts. The actuator is responsive to the electromagnetic force to initially move along the axis of the input shaft thereby bringing the input and output friction plates into engagement to translate torque between the input and output shafts to actuate the compressor assembly so as to produce a refrigerant discharge pressure. The actuator is further responsive to the discharge pressure to develop a greater force between the input and output friction plates thereby bringing about full torque translation between the input and output shafts.

Compressor assembly including an electromagnetically triggered pressure

A gas generator for an air bag is provided which includes a housing having first and second outer shells each having a flange, a gas generation device disposed inside the housing and a gas jet portion for introducing a gas in the gas generation device into the air bag. The flanges of the first and second outer shells are fastened together by locally fastening the flange of the first outer shell and the flange of the second outer shell together with predetermined gaps therebetween. The flange portion has joint portions at which the flanges are attached to each other and contact portions formed between the joint portions at which the flanges are in mere contact with each other. The gas jet portion is formed of the contact portions. The contact portions are opened by buildup of gas pressure inside the housing after impact and the corresponding activation of gas generation device.

Gas generator with circumferential joints

A scroll compressor 10 includes a housing 12, a fixed scroll 26, an orbital scroll 48, a scroll drive assembly 74 and an axial thrust and anti-rotation assembly 108. The axial thrust and anti-rotation assembly includes a pair of scroll key ways 110 and 112, a pair of housing key ways 122 and 124 and an Oldham coupler 132 with key blocks 140 and 142 positioned in the scroll key ways and a pair of key blocks 148 and 150 positioned in the housing key ways. Axial loads exerted on the orbital scroll and end plate 50 by fluid under pressure are transferred from the end plate 50 to roller bearings 118 and 120 mounted in the scroll key ways 110 and 112, to the key blocks 140 and 142, to the ring 134 to thrust roller assemblies 156 and 158 in contact with a surface 136 of the Oldham coupler ring 134 and to the housing 12.

Scroll compressor Oldham coupling having anti-friction means

An assembly for providing socket plate torque restraint for a variable displacement wobble plate compressor is provided. Swing arms support a guide pin and allow for swinging motion to be directed to the pin. A translatable driving sleeve is attached to and rotates with the compressor drive shaft. The sleeve is formed with a cam section having a variable axial profile. An axially fixed follower cooperates with the cam section to generate the motion of the guide pin relative to the socket plate. The motion defines a motion of the socket plate which produces no inertial torques. The compensating torque restraint smooths the uneven driving action of the socket plate. The position of the cam section varies in relation to the displacement orientation of the socket plate, thus allowing precisely that socket plate motion, at all stroke positions, which produces no inertial torques.

Compensating cam socket plate torque restraint assembly for a variable

An assembly for providing socket plate torque restraint for a variable displacement wobble plate refrigerant compressor includes a non-rotary cross groove joint. The joint has a cylindrical outer race, a cylindrical inner race, slightly angled helical grooves in the races, a plurality of torque receiving balls and a cage for properly maintaining and positioning the balls in the cooperating grooves for operation. The joint is connected to a fixed anti-rotational shaft. The shaft is in the form of a sleeve and forms the inner race to effect torque restraint, but at the same time allow for translational axial motion of the socket plate. Radial and thrust bearings mount said socket plate relative to the rotary hub/journal. Lubricating fluid carried by the gaseous refrigerant lubricates the grooves and is then transferred by a passage extending from the grooves in the outer race to the radial/thrust bearings. The cross groove joint provides the ideal kinematic restraint action for the socket plate; the grooves on said inner and outer races and said cage effectively maintaining the balls situated substantially in a single torque transmitting plane that defines and bisects the joint angle. The joint effectively transmits the restraining torque of the joint to the anti-rotational shaft in a manner effective to substantially eliminate torsional vibration.

Cross groove joint socket plate torque restraint assembly for a variable

A wobble plate compressor which is adapted to vary the angularity of the wobble plate during rotation in response to the difference between the resultant reaction force exerted by the pistons on their compression and suction strokes and the pressure in the crankcase. The wobble plate is supported by a first fulcrum movable along the drive shaft around which it is disposed, at a diametrically central location, and by a second fulcrum at a location radially spaced from the drive shaft. The second fulcrum is formed by an end of an arm member disposed for rotation together with the drive shaft. The above end of the arm member is in camming engagement with a side surface of the wobble plate so that with an increase in the angularity of the wobble plate the second fulcrum moves toward the axis of the drive shaft through a substantial stroke, whereby the angularity of the wobble plate can vary at a reduced rate relative to a change in the pressure in the crankcase, thereby enhancing the stability of capacity control.

Growing community of inventors

Columbus, OH, United States of America

James C Swain