| Patent application number | Description | Published |
|---|
| 20090196768 | FLOATING CUP PUMP ASSEMBLY - A pump assembly with a rotor adapted to rotate around a first axis and supporting outwardly projecting piston elements includes at least one drum plate adapted to rotate around a second axis in angled relation to the first axis. The drum plate supports outwardly projecting cup elements such that the cup elements mateably engage distal portions of corresponding piston elements. A curved surface support element is mounted in sliding relation along a rotatable shaft structure and operatively engages the drum plate. A biasing element urges the curved surface support element and drum plate away from the rotor. | 08-06-2009 |
| 20090274564 | Floating cup pump having swashplate mounted cup elements - A floating cup pump assembly incorporating a tilted swashplate structure with cup elements projecting away from either side of the swashplate structure. The swashplate structure is positioned between a first group of matedly engaged piston elements and a second group of matedly engaged piston elements. The piston elements rotate around a first axis and the cup elements rotate around a different axis causing the cups to reciprocate relative to the piston elements. | 11-05-2009 |
| 20100021281 | Power management system and method - The present disclosure is directed to a method for power management in a machine. The method for power management may include sensing a parameter indicative of a torque applied to a torque consuming device rotatably driven by a power source. The method may further include modifying a quantity of fuel supplied to the power source as a function of the sensed parameter. | 01-28-2010 |
| 20100028169 | Hydraulic device having an alignment component - The present disclosure is directed towards a hydraulic device. The hydraulic device may include a rotor, a plurality of piston members extending from the rotor, and a plurality of piston sleeves receiving the plurality of piston members. Each piston sleeve may have a piston receiving end and a piston sleeve axis. The hydraulic device may further include a plate component supporting the plurality of piston sleeves. The plate component may have a plate component axis. The hydraulic device may also include an alignment component having a plurality of arms spaced in a non-contact relationship with a piston receiving end of a respective piston sleeve when the plate component axis is parallel with the piston sleeve axis of the respective piston sleeve. | 02-04-2010 |
| 20100074767 | HYDRAULIC PUMP SYSTEM WITH REDUCED COLD START PARASITIC LOSS - A machine hydraulic pump system including at least one hydraulic pump driven to pressurize hydraulic fluid. A drain port is in fluid communication with an interior lubricating cavity of the pump. A selectively activatable flow control member is in flow-controlling relation to the drain port. The selectively activatable flow control member is adapted to move from a fluid containment condition to a fluid withdrawal condition prior to activation of the pump to at least partially evacuate lubricating liquid from the interior of the pump in response to the temperature of the lubricating liquid dropping below a predefined lower limit. | 03-25-2010 |
| 20100078931 | THREADLESS QUICK CONNECT TUBULAR COUPLING RELEASE TOOL - The presently disclosed embodiment can be characterized as a threadless quick connect coupling release tool having a main body portion fixedly attached to a handle portion, and a head portion having two engagement projection fingers, the head portion being removably attached to the main body portion. An inlet port is coupled to the head portion. | 04-01-2010 |
| 20100107866 | Three speed floating cup hydraulic motor - A hydraulic motor includes a rotor supporting a plurality of piston elements projecting away from opposing faces of the rotor. The rotor is adapted to rotate about a first axis. The hydraulic motor further includes a pair of drum plates each supporting a plurality of cup elements. The plurality of cup elements are adapted to engage the piston elements. Each drum plate is arranged on an opposing side of the rotor and is adapted to rotate about a second axis in angled relation to the first axis. Each of a pair of swashplates is in operative engagement with a respective one of the drum plates and each is adapted to pivot relative to the rotor to move with the respective drum plate between a maximum displacement position and a minimum displacement position to thereby change the angled relation between the first axis and the second axis. The pair of swashplates are further independently pivotable between three different settings. | 05-06-2010 |
| 20100150741 | HYDRAULIC UNIT HAVING ORIFICE PLATE DISPLACEMENT CONTROL - A hydraulic unit is disclosed. The hydraulic unit may have a rotatable body at least partially defining a plurality of barrels, a plurality of plungers associated with the plurality of barrels, and a swashplate tiltable to vary a displacement of the plurality of plungers relative to the plurality of barrels. The hydraulic unit may also have an orifice plate located adjacent the rotatable body. The orifice plate may include an inlet port, a discharge port, and a first plurality of control orifices located between first ends of the inlet and discharge ports. The hydraulic unit may further have a first plurality of control valves, each of the first plurality of control valves being associated with a different control orifice of the first plurality of control orifices. | 06-17-2010 |
| 20100150747 | Pump having pulsation-reducing engagement surface - A pump is disclosed. The pump may have a housing, and a body disposed within the housing and at least partially defining a plurality of barrels. The pump may also have a plurality of plungers associated with the plurality of barrels, and a plunger engagement surface. The plunger engagement surface may have geometry configured to reciprocate the plurality of plungers within the plurality of barrels as the plurality of plungers rotate relative to the plunger engagement surface, and a plurality of undulations configured to reduce a flow pulsation of the pump. | 06-17-2010 |
| 20100154626 | Braking system for a hydraulic motor - The present disclosure is directed towards a hydraulic motor. The hydraulic motor may include a housing having a fluid inlet and a fluid outlet. The hydraulic motor may further include a shaft rotatably disposed within the housing, a rotating element coupled to the shaft configured to rotate with the shaft, and a plurality of pumping elements coupled to the rotating element in fluid communication with the fluid inlet and fluid outlet. The hydraulic motor may also include a brake rotor coupled to the shaft and a braking mechanism selectively coupled to the brake rotor. | 06-24-2010 |
