公开(公告)号：US10895270B2

公开(公告)日：2021-01-19

申请号：US16347013

申请日：2017-10-12

Applicant: PistonPower APS

Inventor： Jørgen P. Todsen ,  Tom Tychsen ,  Peter Zavadinka ,  Lubos Vokel ,  Juraj Hanusovsky ,  Jørgen Mads Clausen

IPC: F15B3/00 ,  F15B15/14 ,  F15B15/20

Abstract: A hydraulic actuator (1) is disclosed comprising a cylinder housing (2), a piston (5) with a piston rod (6) being displaceably arranged inside the cylinder housing (2) and a pressure amplifier (10) comprising an inlet section (18) with a pressure inlet port (20), an active section (19) with a high pressure outlet port (22), a low pressure chamber (32) and a high pressure chamber (38a). It is an objective of the invention to provide a hydraulic actuator (1) with a modular pressure amplifier (10). To this end, the inlet section (18) is arranged inside the piston rod (6), and wherein the low pressure chamber (32) is stationarily arranged relative to the inlet section (18).

公开(公告)号：US20180252240A1

公开(公告)日：2018-09-06

申请号：US15909023

申请日：2018-03-01

Applicant: PistonPower ApS

Inventor： Lubos Vokel ,  Jorgen Mads Clausen ,  Tom Tychsen

IPC: F15B3/00

CPC classification number: F15B3/00 ,  F04B7/0225 ,  F04B9/1056 ,  F15B2201/00

Abstract: A pressure amplifier (1) is described comprising a housing (2), an amplification piston (5) in the housing (2) having a high pressure area (9) in a high pressure chamber (5) and a low pressure area (8) in a low pressure chamber (3), and a switching valve (11) having a pressured control valve element having a larger pressure area (16) and a small pressure area (17). Such a pressure amplifier should have a high operating frequency. To this end the valve element (10) and the amplification piston (5) are located in a same bore (3, 4) in the housing (2).

公开(公告)号：US20200325915A1

公开(公告)日：2020-10-15

申请号：US16843992

申请日：2020-04-09

Applicant: PistonPower ApS

Inventor： Peter Zavadinka ,  Juraj Hanusovsky ,  Lubos Vokel ,  Jorgen P. Todsen ,  Jorgen Mads Clausen

IPC: F15B3/00 ,  F01L25/04

Abstract: A hydraulic pressure amplifier arrangement (1) is described comprising a supply port (A1), a pressure outlet (A2) connected to the supply port via check valve means (3), a tank port (B1), an intensifier section (5) having a high pressure piston (6) in a high pressure cylinder (7) which is connected to the pressure outlet (A2), a low pressure piston (8) in a low pressure cylinder (9) and connected to the high pressure piston (6), an intermediate space (11) between the high pressure piston (6) and the low pressure piston (8), a control valve (12) controlling a pressure in the low pressure cylinder (9), and a feeder arrangement of the intensifier section (5) including an input connection (19) connected to the supply port (A1) and a return connection (20) connected to the tank port (B1). Such a pressure amplifier arrangement should have a simple construction. To this end the feeder arrangement (19, 20) comprises throttling means (21).

公开(公告)号：US11060532B2

公开(公告)日：2021-07-13

申请号：US15909023

申请日：2018-03-01

Applicant: PistonPower ApS

Inventor： Lubos Vokel ,  Jorgen Mads Clausen ,  Tom Tychsen

IPC: F15B3/00 ,  F04B7/02 ,  F04B9/105 ,  F04B9/113 ,  F04B9/103

Abstract: A pressure amplifier (1) is described comprising a housing (2), an amplification piston (5) in the housing (2) having a high pressure area (9) in a high pressure chamber (5) and a low pressure area (8) in a low pressure chamber (3), and a switching valve (11) having a pressured control valve element having a larger pressure area (16) and a small pressure area (17). Such a pressure amplifier should have a high operating frequency. To this end the valve element (10) and the amplification piston (5) are located in a same bore (3, 4) in the housing (2).

公开(公告)号：US20190271332A1

公开(公告)日：2019-09-05

申请号：US16347013

申请日：2017-10-12

Applicant: PistonPower APS

Inventor： Jørgen P. Todsen ,  Tom Tychsen ,  Peter Zavadinka ,  Lubos Vokel ,  Juraj Hanusovsky ,  Jørgen Mads Clausen

IPC: F15B3/00 ,  F15B15/14 ,  F15B15/20

Abstract: A hydraulic actuator (1) is disclosed comprising a cylinder housing (2), a piston (5) with a piston rod (6) being displaceably arranged inside the cylinder housing (2) and a pressure amplifier (10) comprising an inlet section (18) with a pressure inlet port (20), an active section (19) with a high pressure outlet port (22), a low pressure chamber (32) and a high pressure chamber (38a). It is an objective of the invention to provide a hydraulic actuator (1) with a modular pressure amplifier (10). To this end, the inlet section (18) is arranged inside the piston rod (6), and wherein the low pressure chamber (32) is stationarily arranged relative to the inlet section (18).

公开(公告)号：US11105346B2

公开(公告)日：2021-08-31

申请号：US16843992

申请日：2020-04-09

Applicant: PistonPower ApS

Inventor： Peter Zavadinka ,  Juraj Hanusovsky ,  Lubos Vokel ,  Jorgen P. Todsen ,  Jorgen Mads Clausen

IPC: F15B3/00

Abstract: A hydraulic pressure amplifier arrangement (1) is described comprising a supply port (A1), a pressure outlet (A2) connected to the supply port via check valve means (3), a tank port (B1), an intensifier section (5) having a high pressure piston (6) in a high pressure cylinder (7) which is connected to the pressure outlet (A2), a low pressure piston (8) in a low pressure cylinder (9) and connected to the high pressure piston (6), an intermediate space (11) between the high pressure piston (6) and the low pressure piston (8), a control valve (12) controlling a pressure in the low pressure cylinder (9), and a feeder arrangement of the intensifier section (5) including an input connection (19) connected to the supply port (A1) and a return connection (20) connected to the tank port (B1). Such a pressure amplifier arrangement should have a simple construction. To this end the feeder arrangement (19, 20) comprises throttling means (21).

公开(公告)号：US10788061B2

公开(公告)日：2020-09-29

申请号：US16347017

申请日：2017-10-12

Applicant: PistonPower APS

Inventor： Svend Erik Thomsen ,  Jørgen P. Todsen ,  Tom Tychsen ,  Peter Zavadinka ,  Lubos Vokel ,  Juraj Hanusovsky ,  Jørgen Mads Clausen

IPC: F15B15/20 ,  F15B15/14 ,  F15B3/00 ,  F15B11/032

Abstract: A hydraulic actuator (1) is disclosed comprising a cylinder housing (2), a piston (5) with a piston rod (6) being displaceably arranged inside the cylinder housing (2) and a pressure amplifier (17) comprising an inlet section (18) with a pressure inlet port (20), an active section (19) with a high pressure outlet port (22), a low pressure chamber (32) and a high pressure chamber (38a). It is an objective of the invention to provide a hydraulic actuator (1) with a modular pressure amplifier (17). To this end, the hydraulic actuator (1) comprises a cartridge pressure amplifier (10) comprising a sleeve (10a) being arranged at least partially inside the piston rod (6), and wherein the pressure amplifier (17) is stationarily arranged inside the sleeve (10a).

公开(公告)号：US20190271338A1

公开(公告)日：2019-09-05

申请号：US16347017

申请日：2017-10-12

Applicant: PistonPower APS

Inventor： Svend Erik Thomsen ,  Jørgen P. Todsen ,  Tom Tychsen ,  Peter Zavadinka ,  Lubos Vokel ,  Juraj Hanusovsky ,  Jørgen Mads Clausen

IPC: F15B15/20 ,  F15B3/00 ,  F15B15/14

Abstract: A hydraulic actuator (1) is disclosed comprising a cylinder housing (2), a piston (5) with a piston rod (6) being displaceably arranged inside the cylinder housing (2) and a pressure amplifier (17) comprising an inlet section (18) with a pressure inlet port (20), an active section (19) with a high pressure outlet port (22), a low pressure chamber (32) and a high pressure chamber (38a). It is an objective of the invention to provide a hydraulic actuator (1) with a modular pressure amplifier (17). To this end, the hydraulic actuator (1) comprises a cartridge pressure amplifier (10) comprising a sleeve (10a) being arranged at least partially inside the piston rod (6), and wherein the pressure amplifier (17) is stationarily arranged inside the sleeve (10a).