Borgwarner Inc.

Borg-warner Automotive Gmbh

Jacobs Vehicle Systems, Inc.

Xcp, Incorporated

Roger T Simpson

Franklin R Smith

Alan L Miller

Drew A Sundquist

Will Watson

Dan Joseph Showalter

Marty Gardner

Diane K Ducklow

Joseph W Beckerman

Michael C Duffield

Philip J Mott

Braman C Wing

Kevin B Todd

Stanley K Dembosky

Ward D McGinn

Todd K Preston

Todd L Perttola

Mark M Wigsten

George L Markley

Roger P Butterfield

John A Schwoerer

Daniel Brown

Darrell G Rademacher

Danny R Taylor

Sam A Kuznets

Jacob Moore

Mark E Michaels

Michael Close

Thomas R Benner

Frank R Smith

Thomas Neville

Alan Steines

E Paul Dusinberre, Ii

A system that provides adjustable actuation timing of one or more valve(s) () in a piston engine includes a position sensor () and a variable valve actuation assembly (). The valve(s) () can be intake and/or exhaust valves in an internal combustion engine of an automobile. The position sensor () takes position readings of the valve(s) () as the valve(s) () actuate in the piston engine. The variable valve actuation assembly () controls actuation timing of the valve(s) (). Actuation timing of the valve(s) () is adjustable based, in part or more, upon one or more position reading(s) of the position sensor (). The variable valve actuation assembly () can be a lost motion assembly ().

System and method of adjusting actuation timing of valves in a piston engine

A coupling assembly () and method can include a first rotatable member () and a second rotatable member () defining a cylindrical hub portion having a plurality of springs () interposed between the cylindrical hub portion of the second rotatable member () and the first rotatable member () for transferring rotational torque between the first and second rotatable members. A plurality of load-bearing surfaces () associated with the first rotatable member () are engageable by the plurality of springs () to accommodate radial clearances () between the first rotatable member () and the cylindrical hub portion while providing rotational drive torque from the first rotatable member () to the second rotatable member () through the plurality of springs ().

Electric phaser coupling method

An engine variable camshaft timing phaser () includes a sprocket () and a planetary gear set (). The sprocket () receives rotational drive input from an engine crankshaft. The planetary gear set () includes two or more ring gears (), multiple planet gears (), a sun gear (), a first set of teeth (), and a second set of teeth (). One of the ring gears () can be connected to the sprocket () and one of the ring gears () transmits rotational drive output to an engine camshaft. The sun gear () engages with the planet gears () and is driven by an electric motor (). In order to bring the planetary gear set () to a locked condition, the first set of teeth () and the second set of teeth () are mated with each other.

Engine variable camshaft timing phaser with planetary gear set

An apparatus () and method for controlling an angular position of a camshaft () in an internal combustion engine having a camshaft phaser () for controllably varying the phase relationship between a crankshaft of the internal combustion engine and the camshaft (). The camshaft phaser () can be actuated by an electric motor () having an actuator shaft () operating through a gear reduction drive train () having a stationary adjusting member () which rotates when a phase change adjustment is desired. A sensor () can generate a signal corresponding to an angular position of the stationary adjusting member () of the gear reduction drive train (). An engine control unit () can adjust a position of the camshaft () through operation of the electric motor () for rotating the stationary adjusting member () based on the generated signal corresponding to the angular position of the stationary adjusting member ().

Positional control of actuator shaft for e-phaser and method of calibration

An electro-mechanical energy conversion device is provided having an armature with a central cavity. The armature is rotatably mounted in a frame. A torsion bar is positioned within the armature with one end connected to the armature and the other end connected with an energy source or consuming device.

Motor with torsional isolation means

A sprocket unit comprising: a damper mounted on the first shaft with a first face defining a recess and a second face defining chambers for receiving spring loaded weights; a sprocket mounted to the first shaft with a hub defining an aperture and a slot; a front end plate mounted on the shaft with a hub defining an aperture aligned with the aperture of the sprocket; and a spring received within the aperture of the sprocket, the aperture of the front end plate, and the recess of the damper. When the first shaft rotates and firing frequency of the engine coincides with a resonant frequency of the first shaft, the spring loaded weights slide in the chambers of the damper, dampening out the resonant frequency in the first shaft and when the sprocket rotates the spring compresses and extends, reducing torsional load of the first shaft on the second shaft.

Sprocket with damper and compensator

A transmission for an engine or motor with a reduced package size and increased efficiency comprising: an input sprocket, an output sprocket, a chain, and a planetary gear set. The output sprocket is drivingly connecting to the input sprocket through the chain. The output sprocket has a hollow center portion that receives the sun gear of the planetary gear set. The planetary gear set also includes at least two planet gears meshed with the sun gear which are mounted to a fixed planet carrier for driving a differential with a ring gear portion. When the input sprocket is rotated in a first direction, the chain drives the output sprocket and the sun gear in the first direction, and the sun gear drives the planet gears to rotate in a second direction, opposite the first direction, driving the ring gear portion and differential in the second direction.

Manual transmission using chain and planetary gear set as final drive

An internal combustion engine in which the variable cam timing controls for a variable cam timing mechanism include a variable force solenoid mounted within a hollow portion of the camshaft. The variable force solenoid is maintained in place within the hollow camshaft by a tubular shaft fixed to the engine and a bearing between the solenoid and the variable cam timing mechanism.

Variable cam timing controls mounted in the camshaft

A control system for an adjustment device for a variable compression ratio engine comprising: a jack head, a jack piston, a sprocket wheel, a movable transmission member, and a control valve. The jack piston is received within a chamber of the jack head defining first and second fluid chambers. The control valve controls the flow of fluid between the first and second fluid chambers. Based on the position of the control valve, fluid flows from the first fluid chamber to the second fluid chamber or vice versa, moving the control rack connecting the jack piston to the sprocket wheel. Reciprocating motion of the sprocket wheel adjusts the position of the cylinder of the engine.

Control system for a variable compression engine

An on demand vehicle drive system monitors vehicle performance and operating conditions and controls torque delivery to the vehicle wheels. The system includes a plurality of speed and position sensors, a transfer case having primary and secondary output shafts driving primary and secondary axles and a microcontroller. The sensors include a vehicle speed sensor, a pair of primary and secondary drive shaft speed sensors, and brake and driveline status sensors. The transfer case includes a modulating electromagnetic clutch controlled by the microcontroller which is incrementally engaged to transfer torque from the primary output shaft to the secondary output shaft. When the speed of either the front or the rear drive shafts overruns, i.e., exceeds, the speed of the other drive shaft by a predetermined value related to the vehicle speed, indicating that wheel slip is present, clutch current is incrementally increased to increase clutch engagement and torque transfer to the secondary axle. When wheel slip is reduced below the predetermined value the current to the clutch is incrementally reduced. The method of operating such a system is also described.

On demand vehicle drive system

A variable camshaft timing phaser for an internal combustion engine having at least one camshaft comprising a plurality of vanes in chambers defined by a housing and a spool valve. The vanes define an advance and a retard chamber. At least one of the vanes is cam torque actuated (CTA) and at least one of the other vanes is oil pressure actuated (OPA). The spool valve is coupled to the advance and retard chamber defined by the CTA vane and the advance chamber defined by the OPA vane. When the phaser is in the advance position, fluid is routed from the retard chamber defined by the OPA vane to the retard chamber defined the CTA vane. When the phaser is in the retard position, fluid is routed from the retard chamber defined by the CTA vane to the advance chamber defined by the CTA vane.

CTA phaser with proportional oil pressure for actuation at engine condition with low cam torsionals

An electromagnetic valve actuator system for controlling the operation of a valve in an internal combustion engine comprising a valve having a valve stem with a valve head at one end. The valve is reciprocable along the longitudinal central axis of the valve stem to alternatingly move the valve head between a first position and a second position. A first coil is positioned on a first laminated core having a gap and a thickness. A second coil is positioned on a second laminated core having a gap and a thickness. The gaps of the first and second cores are aligned. An armature on the valve stem passes through the gaps of the first and second laminated cores, such that when the armature is centered in either of the gaps at least a portion of the armature extends slightly passed the thickness of the other laminated core.

Electromagnetic actuator having inherently decelerating actuation between limits

A chain drive having a phaser such as a hydraulic vane phaser interposed between a timing chain and a driving or driven shaft is provided. The phaser or the vane are controlled to oscillate more at certain engine speeds to thereby reduce the tensioning force on the chain at the certain engine speeds.

Method of changing the duty cycle frequency of a PWM solenoid on a CAM phaser to increase compliance in a timing drive

A variable cam timing phaser for an internal combustion engine having at least one camshaft comprising a housing, a rotor, a spool valve, and a recirculation check valve. The housing and the rotor define at least one vane which separate chambers, advanced and retard. The spool valve comprises a spool having a plurality of lands mounted within a bore in the rotor. The spool is slidable from an advance position through a holding position to a retard position. The phaser also has an advance exhaust passage, a retard exhaust passage, and a return passage to route operating fluid to the chambers. The recirculation check valve is in the return passage and only allows flow of fluid from the advance chamber into the return passage when the spool is in the retard position and fluid from the retard chamber into the return passage when the spool is in the advance position.

Phaser with a single recirculation check valve and inlet valve

A variable camshaft timing phaser for an internal combustion engine having at least one camshaft comprising a plurality of vanes in chambers defined by a housing and a spool valve. The vanes define an advance and retard chamber. At least one of the vanes is cam torque actuated (CTA) and at least one of the other vanes is oil pressure actuated (OPA). The spool valve is coupled to the advance and retard chamber defined by the CTA vane and the advance chamber defined by the OPA vane. When the phaser is in the advance position, fluid is routed from the retard chamber defined by the OPA vane to the retard chamber defined the CTA vane. When the phaser is in the retard position fluid is routed from the retard chamber defined by the CTA vane to the advance chamber defined by the CTA vane.

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Ithaca, NY, United States of America

Roger T Simpson