Various surface cam planetary mechanisms are described that convert rotational motion to linear reciprocating motion. Also described are assemblies using such mechanisms such as pump drives. A surface cam component used in the mechanisms includes a cam race that exhibits an undulating surface.

Various surface cam planetary mechanisms are described that convert rotational motion to linear reciprocating motion. Also described are assemblies using such mechanisms such as pump drives. A surface cam component used in the mechanisms includes a cam race that exhibits an undulating surface.

A lease automatic custody transfer (LACT) system includes a pump assembly and meter system. The pump assembly is configured to pump a volume of fluid out of a storage container into a conduit. The pump assembly causes a pulsating flow of the volume of fluid through the conduit. The meter system is coupled to the conduit and includes a meter device and a processing system. The meter device is configured to obtain a plurality of measurements corresponding to the volume of fluid flowing through the conduit. The processing system is communicatively coupled to the meter device and configured to determine a flow parameter value based on the plurality of measurements.

The present patent of invention relates to a hydraulic unit (U) with a pneumatic cylinder (15) that works jointly with a servomotor (M), together with a ball screw (29) to together move a hydraulic piston pump (8), made up of a hydraulic plunger (7), with related sealing elements to prevent oil leaks, noise, metal-on-metal attrition and loss of efficiency, that is moved upwards and downwards using a ball screw (29) and a pneumatic cylinder (15), jointly with a servomotor (M) which, when moved, pushes the pressurized oil outwards while filling the opposite hydraulic chamber with an oil suction movement, the pumped oil entering a hydraulic pressure accumulator (25), where it remains idle to be used when required and being supplied by the up/down movement of the piston, generating continuous pumping, which is automatically stopped when the hydraulic pressure accumulator (25) is full and has reached the predetermined hydraulic pressure. With regard to the field of application, the invention is intended to be used to move hydraulic actuators in a variety of different machines and equipment.

To provide a brake hydraulic pressure control apparatus capable of simplifying a measure against NVH and downsizing an outer shape of the apparatus.

The brake hydraulic pressure control apparatus that controls a hydraulic pressure in each of plural systems of hydraulic circuits includes: a pressure supply unit that includes a motor and a pump element; and a hydraulic block that includes an oil channel connected to the pressure supply unit and control valves regulating the hydraulic pressure of each of the plural systems of the hydraulic circuits. The pressure supply unit includes: the motor including a stator and a rotor; a swash plate arranged to be tilted with respect to an axial direction of a rotation axis of the rotor; and the pump element having plural pump sections driven by rotation of the motor. At least a part of the pump element is arranged in the rotor.

To provide a brake hydraulic pressure control apparatus capable of simplifying a measure against NVH and downsizing an outer shape of the apparatus.

The brake hydraulic pressure control apparatus that controls a hydraulic pressure in each of plural systems of hydraulic circuits includes: a pressure supply unit that includes a motor and a pump element; and a hydraulic block that includes an oil channel connected to the pressure supply unit and control valves regulating the hydraulic pressure of each of the plural systems of the hydraulic circuits. The pressure supply unit includes: the motor including a stator and a rotor; a swash plate arranged to be tilted with respect to an axial direction of a rotation axis of the rotor; and the pump element having plural pump sections driven by rotation of the motor. At least a part of the pump element is arranged in the rotor.

In an embodiment, a pump assembly may include a mounting structure and a pump mechanism and a starter motor coupled to the mounting structure. The pump mechanism may include an input shaft configured to be rotatably coupled with an output shaft of a prime mover engine. The starter motor may be coupled with the input shaft of the pump mechanism for rotatably driving the input shaft of the pump mechanism.

In an embodiment, a pump assembly may include a mounting structure and a pump mechanism and a starter motor coupled to the mounting structure. The pump mechanism may include an input shaft configured to be rotatably coupled with an output shaft of a prime mover engine. The starter motor may be coupled with the input shaft of the pump mechanism for rotatably driving the input shaft of the pump mechanism.

Disclosed herein is an electric power and thermal management system in which, when a shaft is rotated due to an operation of a power part, generation of electric power and a circulation of a fluid are performed together so that the generation of the electric power and a circulation structure of oil are integrated, and thus a layout can be reduced, and a structure can be simplified. In addition, in a state in which the generation of the electric power and the circulation structure of the oil are integrated, a circulation amount of the oil is adjusted according to an angle of an inclined plate constituting a pumping mechanism so that an oversupply of the oil to parts through which the oil is circulated can be prevented.

An ultra-long stroke multi-cylinder reciprocating pump comprises a small gear, a large gear, a crankshaft, connecting rods, fixed racks, a frame, translation pinions, movable racks, clamps, piston rods, cylinder sleeves, pistons, suction valves, liquid discharging valves, guide rails, a prime motor, a coupling, and a small gear shaft. When the prime motor rotates, the small gear is meshed with the large gear to drive the crankshaft to rotate, an axial center of the translation pinion is driven by the connecting rod to move reciprocally, the translation pinion is meshed with the fixed rack and the movable rack simultaneously, and a distance of reciprocating motion of the movable rack is twice a distance of reciprocating motion of a rotation center of the translation pinion, so that an ultra-long stroke is realized.