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：US20180252206A1

公开(公告)日：2018-09-06

申请号：US15909254

申请日：2018-03-01

Applicant: PistonPower ApS

Inventor： Peter Krissak ,  Jorgen Mads Clausen ,  Peter Zavadinka

IPC: F04B9/113 ,  F01L25/06 ,  F15B3/00

Abstract: A pressure amplifier (1) is described comprising a housing (2) a low pressure chamber (9-12), a high pressure chamber (13-16) and for transmitting means between the low pressure chamber (9-12) and the high pressure chamber (13-16). Such a pressure amplifier should have a compact design. To this end the force transmitting means comprise a rotor (3) arranged in a bore (4) of the housing (2), wherein the rotor (3) comprises a radially extending low pressure wing (5, 6) and a radially extending high pressure wing (7, 8), the low pressure wing (5, 6) together with the housing (2) delimiting the low pressure chamber (9-12) and the high pressure wing (7, 8) together with the housing (2) delimiting the high pressure chamber (13-16), wherein a supply of fluid into the low pressure chamber (9-12) causes a rotation of the rotor (3) and a rotation of the rotor causes a decrease of volume of the high pressure chamber (13-16).

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：US11041510B2

公开(公告)日：2021-06-22

申请号：US16153068

申请日：2018-10-05

Applicant: PistonPower Aps

Inventor： Peter Zavadinka

IPC: F15B3/00 ,  F15B11/032 ,  F15B11/02 ,  F15B15/20 ,  F04B9/107 ,  F16K31/16

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), an intensifier section (5) having a high pressure piston (6) in a high pressure cylinder (7), a low pressure piston (8) in a low pressure cylinder (9) and connected to the high pressure piston (6), and a control valve (12) controlling a pressure in the low pressure cylinder (9), wherein the control valve (12) comprises a hydraulically actuated valve element (13). Such a pressure amplifier arrangement should have a good operational behavior in a cost effective manner. To this end the control valve (12) comprises spring means 16 acting on the valve element (1) in a direction towards a starting position of the control valve.

公开(公告)号：US10895269B2

公开(公告)日：2021-01-19

申请号：US15909222

申请日：2018-03-01

Applicant: PistonPower ApS

Inventor： Juraj Hanusovsky ,  Jorgen Mads Clausen ,  Tom Tychsen

IPC: F15B3/00 ,  F04B9/113 ,  F04B53/14 ,  F04B7/02

Abstract: A double acting hydraulic pressure intensifier (1) is described comprising a housing (2), a first piston arrangement (7) having a first high pressure piston (8) in a first high pressure chamber (3) in the housing (2) and a first low pressure piston (9) in a first low pressure chamber (5) of the housing (2), a second piston arrangement (10), having a second high pressure piston (11) in a second high pressure chamber (4) in the housing (2) and a second low pressure piston (12) in a second low pressure chamber (6) in the housing (2), and a switching valve (14) having a valve element (15). Such a pressure intensifier should be made compact. To this end the switching valve (14) is located between the first piston arrangement (7) and the second piston arrangement (10).

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：US10774847B2

公开(公告)日：2020-09-15

申请号：US15909254

申请日：2018-03-01

Applicant: PistonPower ApS

Inventor： Peter Krissak ,  Jorgen Mads Clausen ,  Peter Zavadinka

IPC: F15B3/00 ,  F01L25/06 ,  F04F13/00 ,  F04C11/00 ,  F04B9/105 ,  F04B9/113

Abstract: A pressure amplifier (1) is described comprising a housing (2) a low pressure chamber (9-12), a high pressure chamber (13-16) and for transmitting means between the low pressure chamber (9-12) and the high pressure chamber (13-16). Such a pressure amplifier should have a compact design. To this end the force transmitting means comprise a rotor (3) arranged in a bore (4) of the housing (2), wherein the rotor (3) comprises a radially extending low pressure wing (5, 6) and a radially extending high pressure wing (7, 8), the low pressure wing (5, 6) together with the housing (2) delimiting the low pressure chamber (9-12) and the high pressure wing (7, 8) together with the housing (2) delimiting the high pressure chamber (13-16), wherein a supply of fluid into the low pressure chamber (9-12) causes a rotation of the rotor (3) and a rotation of the rotor causes a decrease of volume of the high pressure chamber (13-16).

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).

公开(公告)号：US20180252241A1

公开(公告)日：2018-09-06

申请号：US15909076

申请日：2018-03-01

Applicant: PistonPower ApS

Inventor： Jorgen P. Todsen ,  Jorgen Mads Clausen ,  Tom Tychsen

IPC: F15B3/00 ,  F15B15/20 ,  F04B9/113

CPC classification number: F15B3/00 ,  F04B7/0225 ,  F04B9/1056 ,  F04B9/113 ,  F04B2201/0808 ,  F04B2205/065 ,  F04B2205/16 ,  F15B15/202 ,  F15B2215/30

Abstract: A hydraulic pressure intensifier (1) is described comprising a housing (2) having a low pressure chamber (3) and a high pressure chamber (4), force transmitting means (5) between the low pressure chamber (3) and the high pressure chamber (4), and a switching valve (8) connecting the low pressure chamber (3) to a first pressure or to a second pressure different from the first pressure. It is intended to have a large volume on the high pressure side of the pressure intensifier. To this end the switching valve (8) is controlled by a pilot valve 18.