Back to results
US 11,746,763 B2Granted
Tilt linkage for variable stroke pump
AssigneeCw Holdings Ltd
InventorsJianki Wang, Zhe Huangpu, Milton Anderson, Xiaonan Zhai, Leslie Wise
Life of this patent
Estimating the term…
Abstract
A variable stroke high pressure pump is disclosed. The pump uses a wobble plate design with dynamically variable tilt to provide continuous adjustment of pump stroke length and output. Dynamically variable tilt is accomplished using a linearly actuated tilt thruster rotationally coupled to the drive shaft to maintain a selected tilt of the wobble plate through the rotation of the wobble plate.
Claims20
A variable stroke pump, comprising:
- a drive shaft coupled to a drive;
- a wobble plate rotationally coupled to the drive shaft;
- a plurality of displacement rods coupled to the wobble plate;
- and
- a tilt actuator assembly rotationally coupled to the drive shaft, the tilt actuator assembly comprising:
- a slider disposed around the drive shaft and rotationally coupled to the drive shaft;
- a linear actuator disposed within the drive shaft and coupled to the slider by a pin disposed in a cross-bore of the drive shaft;
- and
- a thruster assembly coupling the slider to the wobble plate with a yaw limit assembly for controlling yaw movement of the wobble plate.
6 more elements
A variable stroke pump, comprising:
- a drive shaft;
- a wobble plate rotationally coupled to the drive shaft;
- a plurality of displacement rods coupled to a first surface of the wobble plate and extending through a bearing plate;
- and
- a tilt actuator assembly rotationally coupled to the drive shaft, the tilt actuator assembly comprising:
- a slider disposed around the drive shaft and rotationally coupled to the drive shaft;
- a linear actuator disposed within the drive shaft and coupled to the slider by a pin disposed in a cross-bore of the drive shaft;
- and
- a thruster assembly comprising a thrust block coupled to a second surface of the wobble plate, opposite from the first surface, and a thrust rod coupled to the slider and rotationally captured within the thrust block.
6 more elements
A variable stroke pump, comprising:
- a drive shaft;
- a wobble plate rotationally coupled to the drive shaft;
- a plurality of displacement rods coupled to the wobble plate and extending through a bearing plate, each displacement rod comprising a first section and a second section coupled together by an attachment plate;
- and
- a tilt actuator assembly rotationally coupled to the drive shaft, the tilt actuator assembly comprising:
- a slider disposed around the drive shaft and rotationally coupled to the drive shaft;
- a linear actuator disposed within the drive shaft and coupled to the slider by a pin disposed in a cross-bore of the drive shaft;
- and
- a thruster assembly comprising a thrust block coupled to the wobble plate and a thrust rod coupled to the slider and rotationally captured within the thrust block.
6 more elements
Dependencies are inferred from the claim text.