Abstract: A jerk type fuel injector-pump unit has a hydraulic needle fuel injector and a plunger rotatably and reciprocably journaled in a bushing to supply pressurized fuel to the injector with a feed-bleed hydraulic circuit incorporated in the plunger and wall of the bushing to control operation of the hydraulic needle whereby to control injection timing.

Abstract: Torque converter with a stator whose blades are selectively set at open and closed position to tailor converter operation for optimized vehicle performance and fuel economy. Turbine discharge pressure is routed to impeller side of stator control piston to move stator blades to low angle position for improved engine economy during vehicle coast down operation. Low angle stator is also used for economical anti-creep idle and for higher stall speeds and acceleration when needed. For economical cruising and other operation, the stator blades are set at their high angle or open position.

Abstract: A piston having a floating wedge carried in a recess of the skirt for limited axial movement. Reciprocation of the piston shifts the wedge position between upper and lower extremes, reducing the effective piston clearance in its cylinder during the upper portions of its stroke, thus reducing lateral piston motion and resulting piston slap caused noise.

Abstract: A torsional vibration damper for a torque converter lock-up clutch having viscous and spring-damping characteristics during the initial relative movement between the input and output members of the clutch and a spring-damping characteristic during further relative movement. Viscous damping can also be provided during the further relative movement, if desired.

Abstract: A jerk-type fuel injector - pump unit is provided with a two-stage plunger rotatably and reciprocably journaled in the cylinders of a two-stage bushing to provide therewith a primary chamber for pumping fuel for injection and a secondary chamber for pumping fuel, with an annular fuel chamber encircling the bushing, the bushing having conventional upper and lower main fill and bypass ports in communication with the primary chamber as controlled by the first stage of the two-stage plunger with each port sequentially closable and operable by spaced helical lands on the first stage of the plunger to effect beginning and ending of injection during the pumping stroke of the plunger to discharge fuel through an outlet at the lower end of the bushing for injection into the cylinder of an engine, the bushing further having secondary port means and a lower flow control passage means, each opening at one end into said secondary chamber with flow therethrough controlled by the second stage of the plunger, the second stag

Abstract: An internal combustion engine crosshead piston assembly having an outer skirt elastomerically mounted on an inner skirt to reduce piston-slap-caused noise.

Abstract: An internal combustion engine crosshead piston assembly having an outer skirt mounted by an elastomeric member on an inner skirt to reduce piston-slap-caused noise wherein expansible chambers are provided in the elastomeric member and are connected by orifices in the inner skirt to receive and eject oil to provide cooling of the outer skirt and also add a damping effect to further reduce the noise.