Jonathan H Richards

US Patent:

20180372217, Dec 27, 2018

Filed:

Jun 22, 2017

Appl. No.:

15/630416

Inventors:

- Herzogenaurach, DE
Jonathan Richards - Waxhaw NC, US

Assignee:

Schaeffler Technologies AG & Co. KG - Herzogenaurach

International Classification:

F16H 61/46

Abstract:

A pump, including: a cylinder block including two through-bores and two pistons disposed in the through-bores; a drive shaft to rotate the cylinder block; a swash plate to displace the pistons within the through-bores to draw fluid through an inlet port into the through-bores; and expel the fluid from the through-bores into the outlet port; a torque sensor arranged to measure torque on the drive shaft and transmit a torque signal, including the measured torque, to a processor; and an actuator to receive, from the processor, a control signal generated using the torque signal and pivot the swash plate about a first axis, transverse to the axis of rotation, or maintain a circumferential position of the swash plate about the first axis; or pivot the cylinder block about a second axis, transverse to the axis of rotation, or maintain a circumferential position of the cylinder block about the second axis.

US Patent:

20180347552, Dec 6, 2018

Filed:

May 31, 2017

Appl. No.:

15/609926

Inventors:

- Herzogenaurach, DE
Jonathan Richards - Waxhaw NC, US

Assignee:

Schaeffler Technologies AG & Co. KG - Herzogenaurach

International Classification:

F04B 1/32
F04B 1/22
F04B 19/22

Abstract:

A variable displacement axial pump, including: a housing including first and second inlet ports and first and second outlet ports; a shaft arranged to receive rotational torque; an axis of rotation for the shaft; swash plate located in the housing; a first cylinder block located in the housing and including first and second through-bores and first and second pistons at least partly disposed in the first and second through-bores, respectively, and connected to the swash plate; and a second cylinder block located in the housing and including third and fourth through-bores and third and fourth pistons at least partly disposed in the third and fourth through-bores, respectively, and connected to the swash plate. The shaft is arranged to rotate, with respect to the swash plate, the first and second cylinder blocks about the axis of rotation.

US Patent:

20180058449, Mar 1, 2018

Filed:

Aug 23, 2017

Appl. No.:

15/683826

Inventors:

- Herzogenaurach, DE
Jonathan Richards - Waxhaw NC, US

International Classification:

F04C 14/18

Abstract:

A pump, including: inlet port and outlet ports; a cylinder block including a piston disposed in a through-bore; a swash plate engaged with the piston; a drive shaft non-rotatably connected to the drive shaft, arranged to rotate the cylinder block to draw fluid through the inlet port into the through-bore and to expel the fluid from the through-bore and through the outlet port and including an axis of rotation; an axis transverse to the axis of rotation; and an actuator including a roller screw; a nut disposed about the roller screw and in threaded contact with the roller screw; an actuator pin; and an electric motor arranged to rotate the roller screw or the nut to axially displace the actuator pin to pivot the swash plate or the cylinder block about the axis and control an amount of the fluid expelled from the through-bore.