A torque converter is provided with a stator having adjustable fluid flow holes for changing the K-factor of the torque converter, as needed. The stator includes a base plate with fluid flow openings and an adjustable plate with fluid flow openings. The plates matingly engage, such that the fluid openings are adjacent one another. The degree of overlap of the openings can be varied from fully aligned to substantially misaligned by rotating the adjustable plate relative to the base plate, and thereby controlling the fluid flow through the openings. In alternative embodiments the stator holes can be automatically opened and closed in response to changes in fluid pressure in the torque converter, via reed values or spring biased balls.

A torque converter is provided with a stator having adjustable fluid flow holes for changing the K-factor of the torque converter, as needed. The stator includes a base plate with fluid flow openings and an adjustable plate with fluid flow openings. The plates matingly engage, such that the fluid openings are adjacent one another. The degree of overlap of the openings can be varied from fully aligned to substantially misaligned by rotating the adjustable plate relative to the base plate, and thereby controlling the fluid flow through the openings. In alternative embodiments the stator holes can be automatically opened and closed in response to changes in fluid pressure in the torque converter, via reed values or spring biased balls.

A torque converter is provided with a stator having adjustable fluid flow holes for changing the K-factor of the torque converter, as needed. The stator includes a base plate with fluid flow openings and an adjustable plate with fluid flow openings. The plates matingly engage, such that the fluid openings are adjacent one another. The degree of overlap of the openings can be varied from fully aligned to substantially misaligned by rotating the adjustable plate relative to the base plate, and thereby controlling the fluid flow through the openings. In alternative embodiments the stator holes can be automatically opened and closed in response to changes in fluid pressure in the torque converter, via reed values or spring biased balls.

The invention relates to a continuously variable transmission and a transmission system comprising said continuously variable transmission, wherein the continuously variable transmission comprises a first gear pump and a second gear pump, wherein each gear pump comprises a first gear and a second gear meshing with the first gear over an overlap distance in an overlap direction parallel to the first gear axis, wherein each gear pump further comprises an adjustment member for adjusting the pump volume, wherein the adjustment member of the first gear pump and the adjustment member of the second gear pump are interconnected by a connecting member for adjusting the pump volume of the first gear pump and the pump volume of the second gear pump in an inverse correlation to each other.

The invention relates to a continuously variable transmission and a transmission system comprising said continuously variable transmission, wherein the continuously variable transmission comprises a first gear pump and a second gear pump, wherein each gear pump comprises a first gear and a second gear meshing with the first gear over an overlap distance in an overlap direction parallel to the first gear axis, wherein each gear pump further comprises an adjustment member for adjusting the pump volume, wherein the adjustment member of the first gear pump and the adjustment member of the second gear pump are interconnected by a connecting member for adjusting the pump volume of the first gear pump and the pump volume of the second gear pump in an inverse correlation to each other.

A torque converter is provided with a stator having adjustable fluid flow holes for changing the K-factor of the torque converter, as needed. The stator includes a base plate with fluid flow openings and an adjustable plate with fluid flow openings. The plates matingly engage, such that the fluid openings are adjacent one another. The degree of overlap of the openings can be varied from fully aligned to substantially misaligned by rotating the adjustable plate relative to the base plate, and thereby controlling the fluid flow through the openings. In alternative embodiments the stator holes can be automatically opened and closed in response to changes in fluid pressure in the torque converter, via reed values or spring biased balls.

A torque converter is provided with a stator having adjustable fluid flow holes for changing the K-factor of the torque converter, as needed. The stator includes a base plate with fluid flow openings and an adjustable plate with fluid flow openings. The plates matingly engage, such that the fluid openings are adjacent one another. The degree of overlap of the openings can be varied from fully aligned to substantially misaligned by rotating the adjustable plate relative to the base plate, and thereby controlling the fluid flow through the openings. In alternative embodiments the stator holes can be automatically opened and closed in response to changes in fluid pressure in the torque converter, via reed values or spring biased balls.

Methods and systems for a hydromechanical transmission are provided herein. In one example, the transmission operating method includes asynchronously shifting between a first pair of drive ranges in the transmission via operation of two clutches and a variable displacement hydraulic pump in a hydrostatic assembly. In the method, asynchronously shifting between the two drive ranges includes a plurality of phases that include a swiveling phase where a speed of the hydrostatic assembly is inverted.

A speed control system for a stator of a torque converter is provided. The speed control system includes an annular ring member disposed around an outer circumference of the stator. The speed control system further includes a plurality of wing members disposed on an outer circumference of the annular ring member. Each of the plurality of wing members includes a first end and a second end distal to the first end. The speed control system further includes an elastic member disposed at the second end of each of the plurality of wing members. Each of the plurality of wing members is displaced from a first position to a second position against a biasing force of the elastic member, when a rotational speed of the stator is equal to or greater than a threshold speed of the stator, to control the rotational speed of the stator within the threshold speed.