公开(公告)号：US20150050165A1

公开(公告)日：2015-02-19

申请号：US14452112

申请日：2014-08-05

Applicant: Danfoss Power Solutions Inc.

Inventor： Peter Zavadinka ,  Stanislav Smolka ,  Pavol Sedo

IPC: F04B49/08 ,  F04B49/00 ,  F04B1/32

CPC classification number: F04B49/08 ,  F04B1/324 ,  F04B49/002

Abstract: Control device for hydraulic variable displacement pumps operated in an open hydraulic circuit and adjustable in their displacement volume by means of a servo control device. The control device comprises a control piston with two control edges to which pressure can be applied by means of pressurized pressure fluid from a variable displacement pump, the control piston being mounted in a housing so that it shifts longitudinally. The housing of the control piston comprises an inlet for the connection of a high pressure line of a variable displacement pump, an outlet which can be connected to a tank and a servo connection which can be linked to a servo cylinder, whereby a link between the inlet and the servo connection can be made via a first control edge. It is possible to create a link between the servo connection and the outlet via a second control edge.

Abstract translation: 用于液压可变排量泵的控制装置，其操作在开放的液压回路中，并通过伺服控制装置可调节其排量。 控制装置包括具有两个控制边缘的控制活塞，通过来自可变排量泵的加压压力流体可以施加压力，控制活塞安装在外壳中，使其纵向移动。 控制活塞的壳体包括用于连接可变排量泵的高压管线的入口，可连接到罐的出口和可连接到伺服缸的伺服连接件， 入口和伺服连接可以通过第一控制边缘进行。 可以通过第二控制边缘在伺服连接和出口之间建立连接。

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：US20210040944A1

公开(公告)日：2021-02-11

申请号：US16866714

申请日：2020-05-05

Applicant: DANFOSS POWER SOLUTIONS INC.

Inventor： Stanislav Smolka

IPC: F04B49/00 ,  F04B17/00 ,  F04B49/22

Abstract: An electric displacement control system has a hydraulic variable displacement pump that operates in an open hydraulic circuit. A servo piston is disposed within a servo bore that is connected to the hydraulic variable displacement pump. Located in the servo bore is a control spool valve having an orifice that vents fluid pressure from the servo bore to a pump case. The flow rate of the system depends upon a fluid force between a feedback spring on a first side of the control spool valve and a solenoid actuator force on a second side of the control spool valve.

公开(公告)号：US11644028B2

公开(公告)日：2023-05-09

申请号：US16843166

申请日：2020-04-08

Applicant: Danfoss Power Solutions Inc.

Inventor： Doug Kardell ,  Stanislav Smolka

IPC: F04B49/08 ,  F04B9/04 ,  F04B1/295 ,  F04B49/00 ,  F04B49/12

CPC classification number: F04B49/08 ,  F04B1/295 ,  F04B9/042 ,  F04B49/002 ,  F04B49/12 ,  F04B2203/0207

Abstract: A control arrangement for a variable displacement pump includes a pressure control unit and a separate mechanical control unit, each mounted on a housing of the variable displacement pump. The pressure control unit provides pressure control for the variable displacement pump and the mechanical control unit provides rotary feedback control for the variable displacement pump.

公开(公告)号：US20210317827A1

公开(公告)日：2021-10-14

申请号：US16843166

申请日：2020-04-08

Applicant: Danfoss Power Solutions Inc.

Inventor： Doug Kardell ,  Stanislav Smolka

IPC: F04B49/08 ,  F04B9/04

Abstract: A control arrangement for a variable displacement pump includes a pressure control unit and a separate mechanical control unit, each mounted on a housing of the variable displacement pump. The pressure control unit provides pressure control for the variable displacement pump and the mechanical control unit provides rotary feedback control for the variable displacement pump.

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.