公开(公告)号：US11136969B2

公开(公告)日：2021-10-05

申请号：US16792489

申请日：2020-02-17

Applicant: DANFOSS POWER SOLUTIONS INC.

Inventor： Stanislav Smolka ,  Jaromir Tvaruzek

IPC: F04B1/2085 ,  F16C19/50 ,  F16C33/30 ,  F16C33/58 ,  B33Y80/00

Abstract: A bearing assembly having an inner race, an outer race, and a plurality of rollers positioned between the inner race and the outer race. A pad is attached to the inner race and a bed is attached to the outer race. A timing mechanism is slidably mounted to the pad and the bed. Preferably the pad and bed are made of plastic and the inner race is embedded within the pad and the outer race is embedded within the bed.

公开(公告)号：US20200291929A1

公开(公告)日：2020-09-17

申请号：US16792489

申请日：2020-02-17

Applicant: DANFOSS POWER SOLUTIONS INC.

Inventor： Stanislav Smolka ,  Jaromir Tvaruzek

IPC: F04B1/2085 ,  F16C19/50 ,  F16C33/58 ,  F16C33/60 ,  F16C33/62

Abstract: A bearing assembly having an inner race, an outer race, and a plurality of rollers positioned between the inner race and the outer race. A pad is attached to the inner race and a bed is attached to the outer race. A timing mechanism is slidably mounted to the pad and the bed. Preferably the pad and bed are made of plastic and the inner race is embedded within the pad and the outer race is embedded within the bed.

公开(公告)号：US20160017997A1

公开(公告)日：2016-01-21

申请号：US14333948

申请日：2014-07-17

Applicant: Danfoss Power Solutions Inc.

Inventor： Jaromir Tvaruzek ,  Vince Ewald ,  Michael J. Romey ,  Charlie Dvorak

IPC: F16J1/08 ,  F16J9/26

CPC classification number: F16J1/08 ,  F15B15/1452 ,  F16J9/26

Abstract: A servo piston having an elongated member with a first end and a second end. The second end has a servo piston head disposed within a servo piston bore. The servo piston head has at least two grooves disposed about an outer edge of the servo piston head. At last one sealing ring is received within each groove. The use of rings in at least two grooves reduces side/transversal vibration and the servo bore load. At the same time, the space between the two grooves creates a pressurized oil squeeze film between the servo piston head and servo piston bore, sealed by the rings, which provides both a sealing and damping function at the same time.

Abstract translation: 伺服活塞具有带有第一端和第二端的细长构件。 第二端具有设置在伺服活塞孔内的伺服活塞头。 伺服活塞头具有围绕伺服活塞头的外边缘设置的至少两个凹槽。 最后一个密封环被接纳在每个槽内。 在至少两个槽中使用环可减少侧向/横向振动和伺服孔负载。 同时，两个槽之间的空间在伺服活塞头和伺服活塞孔之间产生加压油挤压膜，由环密封，同时提供密封和阻尼功能。

公开(公告)号：US11946462B2

公开(公告)日：2024-04-02

申请号：US16700407

申请日：2019-12-02

Applicant: Danfoss Power Solutions Inc.

Inventor： Jaromir Tvaruzek ,  Samuel Hall ,  Phil Evans ,  Dennis Greene

IPC: F04B1/26 ,  F01B3/00 ,  F04B1/30 ,  F04B1/34 ,  F04B1/20 ,  F04B49/00 ,  F04B49/12

CPC classification number: F04B1/26 ,  F01B3/0058 ,  F04B1/30 ,  F04B1/34 ,  F04B1/20 ,  F04B49/002 ,  F04B49/12 ,  F15B2211/41536

Abstract: Hydraulic axial piston unit having a rotational group for driving or being driven by a driving shaft, and a tiltable displacement element for adjusting the displacement volume of the rotational group. The rotational group includes a rotatable cylinder block in which working pistons are mounted reciprocally moveable in cylinder bores for conveying hydraulic fluid from an inlet port to an outlet port on a valve segment. At least two control ports are located on the valve segment each between the inlet port and the outlet port. The control ports can be brought sequentially in fluid connection with the cylinder bores when the cylinder block is rotating. At least one hydraulic fluid injector is connected fluidly to one control port, for sequentially injecting pressurized hydraulic fluid via the control port into the passing cylinder bores. Via the other control port hydraulic fluid can be drained from passing cylinder bores.

公开(公告)号：US20210164501A1

公开(公告)日：2021-06-03

申请号：US16700407

申请日：2019-12-02

Applicant: Danfoss Power Solutions Inc.

Inventor： Jaromir Tvaruzek ,  Samuel Hall ,  Phil Evans ,  Dennis Greene

IPC: F15B21/00

Abstract: Hydraulic axial piston unit having a rotational group for driving or being driven by a driving shaft, and a tiltable displacement element for adjusting the displacement volume of the rotational group. The rotational group includes a rotatable cylinder block in which working pistons are mounted reciprocally moveable in cylinder bores for conveying hydraulic fluid from a kidney-shaped inlet port to a kidney-shaped outlet port on a valve segment. At least two control ports are located on the valve segment each between the respective circumferential ends of the kidney-shaped inlet port and the outlet port. The control ports can be brought sequentially in fluid connection with the cylinder bores when the cylinder block is rotating. At least one hydraulic fluid injector is connected fluidly to one control port, for sequentially injecting pressurized hydraulic fluid via the control port into the passing cylinder bores. Via the other control port hydraulic fluid can be drained from passing cylinder bores.