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Matches 651 - 700 out of 33,026

Document Document Title
WO/2013/017141A1
The invention relates to a control device (1) for a working fluid for operating a hydraulic drive (11) such as is used, in particular, for a lift. Said control device (1) comprises a flow path (6) for directing a volume flow of the worki...  
WO/2013/014224A3
An arrangement (2) for selectively making available hydraulic power in separate hydraulic circuits comprises two displacement machines (4, 6), two free-wheels (8, 10) and a drive unit (12) that is preferably arranged between the displace...  
WO/2013/015022A1
Provided is a construction machine capable of obtaining a great fuel consumption reduction effect, by efficiently using recovered energy. The construction machine comprises: at least two actuators (7, 8); a main pump (3) that generates...  
WO/2013/010269A1
An actuator for actuating a plunger of a valve is provided. The actuator has an inlet and includes first and second hollow caps. A main actuation assembly is provided between the caps. The main actuation assembly includes a deformable di...  
WO/2013/007260A1
A press table (8) adapted for mounting in a press (2) and for mounting a pressing tool, including a pressing unit (24) comprising a first actuator (26) with a displaceable first pressing cylinder (32) for actuating the pressing tool with...  
WO/2013/003998A1
A hydraulic control loop circuit comprising an actuator element (1) and a buffer loop circuit (100) parallel-connected to the actuator element (1). The buffer loop circuit (100) comprises relief valves (51 and 52; 81 and 82) and buffer c...  
WO/2013/003997A1
A hydraulic control loop circuit. The hydraulic control loop circuit comprises a directional control valve (10) having a bypass throttle loop circuit and an actuator element (11) connected to the directional control valve (10). The hydra...  
WO/2013/005393A1
A construction machine comprises: a rotation motor for rotationally driving the upper rotating body relative to the lower traveling body; a working attachment having a boom, a boom cylinder, an arm, and an arm cylinder; a hydraulic actua...  
WO/2013/004690A1
The invention proceeds from a pneumatic actuating drive (1) with a pneumatic adjusting unit (10) with a pneumatically drivable adjusting element (11) and with a damping unit (20), wherein the adjusting element (11) is in an operative con...  
WO/2013/006423A3
A pump system includes a closed-loop fluid circuit and an open-loop fluid circuit. The closed-loop fluid circuit includes a motor for rotating a first component connected to the closed-loop fluid circuit. A closed-loop pump drives the mo...  
WO/2013/000168A1
Disclosed is a control method for a hydraulic motor including steps as follows: during the shifting of the hydraulic motor between high and low speed, an oil inlet of a variable mechanism receives a continuous proportion hydraulic signal...  
WO/2013/003048A3
A hydraulic control system (50) for a machine (10) is disclosed. The hydraulic control system may have a pump (58) configured to pressurize fluid, and a motor (49) driven by a flow of pressurized fluid from the pump. The hydraulic contro...  
WO/2013/002429A1
Provided is a hydraulic control valve in which a center bypass passage is not blocked, but is unloaded when a swing and an arm are operated at the same time to prevent the pressure in a hydraulic pump from being increased. The hydraulic ...  
WO/2012/175061A1
The invention relates to a hydraulic system, comprising a system pressure for supplying consumer pressure to a consumer and a valve device. The invention is characterized in that the valve device comprises two valves, each having an inle...  
WO/2012/174936A1
A small displacement start control loop for a main pump and a control method thereof. The control loop comprises a controller (1) and a hydraulic loop (2). The hydraulic loop (2) comprises a first solenoid valve (21), a second solenoid v...  
WO/2012/175792A1
Invention relates to a fluid flow control device for an internal combustion piston engine, which engine com-prises fluid flow system having a main fluid channel and a branch channel which branches from the main fluid channel, and in whic...  
WO/2012/176314A1
The present invention provides an electro-hydraulic hybrid drive device (100) that drives a hydraulic cylinder (500). This electro-hydraulic hybrid drive device (100) is equipped with: a hydraulic pump (110) capable of rotation in both t...  
WO/2012/173005A1
The present invention provides an extrusion press with which it is possible to eliminate nonuniformity in the degree of dynamic/thermal fatigue of electrical devices, control devices, and the like that drive hydraulic devices and hydraul...  
WO/2012/167892A3
The invention relates to a hydropneumatic device having pressure intensification, wherein the hydropneumatic device has a working part (8) having a working piston guided in the working part (8) has a intensifier part (9) having a intensi...  
WO/2012/167959A1
The invention relates to a fluid device, in particular for use in or with a machine for producing, handling and/or processing a fibre material web, such as a paper, tissue or card web. The fluid device has at least one piston/cylinder ar...  
WO/2012/167892A2
The invention relates to a hydropneumatic device having pressure intensification, wherein the hydropneumatic device has a working part (8) having a working piston guided in the working part (8) has a intensifier part (9) having a intensi...  
WO/2012/167960A1
The invention relates to a digital pneumatic pressure regulator (1) for controlling the pressure and/or flow rate of a working fluid in a machine for producing a fibrous material web, in particular a paper or cardboard machine, having at...  
WO/2012/165674A1
Disclosed is an open center-type load sensing hydraulic system for securing operability and responsiveness of the open center-type hydraulic system, and for bypassing a discharge volume of a hydraulic pump to a hydraulic tank when a cont...  
WO/2012/165933A1
The invention relates to engineering hydraulics, in particular to hydraulic drives with closed working fluid circulation system used, for example, in mechanical engineering, shipbuilding, machine-tool and aircraft building. The hydraulic...  
WO/2012/161276A1
A hydraulic machine comprising an assistance electric motor connected to an engine and a hydraulic pump is provided to reduce air pollutants from exhaust gas of the engine and costs necessary to install an exhaust gas post-processing app...  
WO/2012/160988A1
Provided is a fluid control device which can reduce assembling time by facilitating the positioning of line support members and which can minimize an increase in the height of a portion for supporting fluid control equipment. A base memb...  
WO/2012/159374A1
Disclosed in the present invention are a hydraulic control system and a hydraulic control module thereof and an engineering machine having the system. The hydraulic control module comprises an oil inlet opening (P) connected to an oil pu...  
WO/2012/160770A1
This rotary work machine includes: a rotary motor (11) which is a hydraulic motor for rotary drive; a variable-capacity hydraulic pump (10); a rotary operation device (12) including an operation member (12a); a control valve (13) that co...  
WO/2012/157705A1
[Problem] A hydraulic drive device enables combined boom raising and arm crowding operation without providing a throttle and also enables arm crowding operation in the same manner as in the case where a recovery circuit having a throttle...  
WO/2012/153059A1
The system of the invention includes: a main hydraulic pump motor (4) having an inlet connected to a high-pressure system and an inlet connected to a low-pressure system; and a pressure amplifier consisting of two hydraulic pump motors (...  
WO/2012/153004A1
The invention relates to a method for cylinder use, whereby a bi-functional cylinder (1) is being used in a hydraulic circuit by a pump arrangement (2), such as a fixed displacement pump or like, by producing plus and minus movements of ...  
WO/2012/150651A1
A rotation-type working machine is provided with: a hydraulic motor (11) having first and second ports (11a, 11b) and rotationally driving the upper rotation body; a hydraulic pump (10); a rotation operation device (12) including an oper...  
WO/2012/150652A1
Provided is a rotation-type working machine having high energy recovery efficiency and safe. The rotation-type working machine is provided with: a lower travel body; an upper rotation body; a hydraulic motor (11) for rotationally driving...  
WO/2012/150653A1
A rotation-type working machine is provided with: a hydraulic motor (11) having first and second ports (11a, 11b) and rotationally driving the upper rotation body; a hydraulic pump (10); a rotation operation device (12) including an oper...  
WO/2012/150650A1
Provided is a rotation-type working machine configured so that back pressure generated during the drive of rotation can be reduced. This rotation-type construction machine is provided with: a lower travel body; an upper rotation body; a ...  
WO/2012/143938A8
An energy conserving system (100) for a hydraulic machine comprising a reservoir (112) for providing a hydraulic fluid; a motor; a pump; an actuator comprising a motor shaft (106) extending along an axis from a motor (101); a pump shaft ...  
WO/2012/143614A1
The hydraulic system comprises a first subsystem (23) working within a first pressure range and a second subsystem (24) working within a second pressure range, where the upper limit is higher than the upper limit of the first pressure ra...  
WO/2012/143938A3
An energy conserving system (100) for a hydraulic machine comprising a reservoir (112) for providing a hydraulic fluid; a motor; a pump; an actuator comprising a motor shaft (106) extending along an axis from a motor (101); a pump shaft ...  
WO/2012/144412A1
The present invention, which relates to a hydraulic circuit for a ram cylinder and the purpose of which is to cause redundantly provided supply/discharge circuits for a ram cylinder to exhibit multiple functions, is characterized by comp...  
WO/2012/144428A1
Provided is an electromotive drive device that is of a construction machine and that is capable of lengthening operation time. The electromotive drive device of an electric mini shovel is provided with: an electricity storage device (7);...  
WO/2012/136409A1
The invention relates to an arrangement of a camshaft adjuster (1) which comprises an input element (2) and at least two output elements (3, 4), the input element (2) and the output elements (3, 4) comprising a plurality of radially orie...  
WO/2012/137647A1
[Problem] To rapidly stop a rotary part even though a relief pressure is lowered due to a fault of a hydraulic device included in a rotary motor driving circuit when it is intended to stop the rotary part after a predetermined delay time...  
WO/2012/133104A1
[Problem] To provide a hydraulic system for a hydraulic working machine, the hydraulic system being configured so that the influence of the impairment of the responsiveness to the control of the speed of an actuator is reduced to a minim...  
WO/2012/135490A1
A poppet valve assembly to control a pneumatic actuator may include a housing having a central bore. A first module may be disposed within the central bore, and the first module may have a first and second poppet valve. A second module m...  
WO/2012/130934A1
An arrangement (10) for receiving a multi-part casting mould (47), in particular an at least two-part blow mould (47), a drive unit (30 to 36) for displacing locking elements (38 to 44) comprises a main cylinder (82) with a main piston (...  
WO/2012/128797A3
A normally closed, electrical solenoid actuated, pressure compensated, proportional, hydraulic flow control valve (4) includes a fluid flow control poppet valve (5), a pilot operator (6), a solenoid operator (7) and a pressure compensato...  
WO/2012/128091A1
A mixer drum driving device provided with a hydraulic motor that drives the rotation of a mixer drum, a first hydraulic pump that is driven by an engine and is capable of supplying hydraulic oil to the hydraulic motor, an electric motor,...  
WO/2012/128291A1
A mixer drum driving device provided with a mixer drum, a hydraulic motor, a hydraulic pump, an auxiliary hydraulic pump that supplies hydraulic oil to the hydraulic motor independently from the hydraulic pump to cause the mixing rotatio...  
WO/2012/129042A1
A hydraulic circuit and method for extending a cylinder rod of a power cylinder (11) is provided wherein a valve (25) associated with an inlet port (16) of a cylinder base end and a valve (27) associated with an outlet port (17) on a rod...  
WO/2012/128797A2
A normally closed, electrical solenoid actuated, pressure compensated, proportional, hydraulic flow control valve (4) includes a fluid flow control poppet valve (5), a pilot operator (6), a solenoid operator (7) and a pressure compensato...  

Matches 651 - 700 out of 33,026