Curt A Wykstra

57978174, Aug 25, 1998

Dec 15, 1995

8/573181

Christopher T. Senftleben - Dryden NY
Curt A. Wykstra - Moravia NY

Borg-Warner Automotive, Inc. - Sterling Heights MI

F16H 708

474110

A hydraulic tensioner with an internal reservoir. The tensioner includes a housing having a sleeve, and a hollow piston slidably received about the sleeve and biased in a protruding direction by a spring. A fluid chamber is defined by the sleeve and the hollow piston. Fluid from an external source flows through a passageway into a reservoir which is located inside the tensioner housing above the fluid chamber. The reservoir is connected to the fluid chamber such that fluid flows from the reservoir through a check valve assembly into the fluid chamber such that the fluid chamber remains filled with fluid.

48738794, Oct 17, 1989

Sep 8, 1987

7/093671

Roger P. Butterfield - Interlaken NY
Guenter J. Neumann - Ithaca NY
Curt A. Wykstra - Dryden NY

Borg-Warner Automotive, Inc. - Troy MI

F16H 3702

74689

A continuously variable transmission including a driving shaft connected to an engine output member and a driven shaft. The shafts are interconnected by a stepless variable coupling. A bidirectional gear drive mechanism connects the driven shaft to a differential mechanism having two output shafts extending therefrom. The drive mechanism includes a two gear forward and a three gear reverse drive path, each of which is controlled by a fluid-actuated starting clutch mechanism. Each gear path is adapted to drive a transfer gear which continually intermeshes with a ring gear of the differential defining another gear mesh. By such construction, the output shafts and the engine output memeber may rotate in the same direction during a forward drive mode of operation.

53679920, Nov 29, 1994

Jul 26, 1993

8/097355

Roger P. Butterfield - Trumansburg NY
Franklin R. Smith - Slaterville Springs NY
Curt A. Wykstra - Moravia NY

Borg-Warner Automotive, Inc. - Sterling Heights MI

F01L 134

123 9017

A variable camshaft timing system (VCT system) for an internal combustion engine having a rotatable crankshaft (22) and a rotatable camshaft (26, 126). The camshaft (26, 126) is position variable relative to the crankshaft (22). A spool valve (192) including a spool (200) slidable within a cylindrical member (198) selectively controls the movement of hydraulic fluid for actuating the oscillation of the hydraulic operators (54, 56, 160a, 160b) within the housing recess (132a, 132b) as the housing oscillates with respect to the camshaft (26, 126). In accordance with various aspects of the present invention, the VCT system also includes a means for controlling the position of the spool (200), a means for removing air from the VCT system and seals (160h) for sealing the housing (130) outer periphery to prevent hydraulic fluid from draining out of the VCT system when the engine is shut down.