Abstract:
A pressure supply device in accordance to one or more aspects includes an elongated body having an internal bore extending from a power end to a discharge end having a discharge port, two or more gas generators connected to the power end and a hydraulic fluid disposed in the bore between a piston and the discharge end. The ignition of one of the gas generators drives the piston to exhaust a partial volume of the hydraulic fluid that is less than the total operational volume of the hydraulic fluid under pressure to operate ate a connected device.
Abstract:
An actuator assembly (100), the actuator assembly (100) including : - a first actuator (5), the first actuator (5) comprising an actuator housing (51), a piston (53) in the actuator housing (51) and an actuator rod (53); and - a hydraulic unit (300), and the actuator assembly (100) further including : - a second actuator (5'), the second actuator (5') comprising an actuator housing (51'), a piston (53') in the actuator housing (51') and an actuator rod (53'); and - the piston side of the first actuator (5) facing the piston side of the second actuator (5'), and the actuator rods (53, 53') being coaxial.
Abstract:
A hybrid swing drive system (1) of a hydraulic construction machine includes a variable displacement hydraulic swing pump (3) operable by a prime mover(2); a hydraulic swing motor (16) for performing a swing function of the machine; an accumulator (10); a controller (244); a swing control valve assembly (15) disposed in a first hydraulic path extending from the swing pump to the swing motor, the swing control valve assembly having a first position fluidly connecting the swing pump to a first side of the swing motor and a second position fluidly connecting the swing pump to a second side of the swing motor; and an accumulator control valve (12) having an open position fluidly connecting the accumulator to the first hydraulic path at an accumulator control valve connection point and a closed position fluidly isolating the accumulator from the first hydraulic path.
Abstract:
Module hydraulique prévu pour être monté sur un véhicule hybride hydraulique, caractérisé en ce qu'il forme un ensemble rigide et compact comportant un corps (32) recevant les accumulateurs haute et basse pression destinés à alimenter des moteurs de traction du véhicule, comprenant une forme globalement parallélépipédique, et disposant de moyens de fixation prévus pour être fixés sous un plancher à l'arrière du véhicule.
Abstract:
발명은 유압구동기(Hydraulic Actuator)를 이용한 유압제어장치로서, 클리어런스 포켓을 구비한 Hydraulic Actuator와, 상기 Hydraulic Actuator에 각각 연결된 오일 공급라인 및 오일 배출라인과, 상기 오일 공급라인 및 오일 배출라인에 각각 연결된 파일럿 밸브와, 상기 Hydraulic Actuator에 오일을 추가로 공급하는 어큐뮬레이터를 포함하고, 유압관리가 용이하고 보다 효율적이고 적절한 압력조절 및 제어가 가능한 Hydraulic Actuator를 이용한 유압제어장치를 제공하는 효과를 갖는다.
Abstract:
PURPOSE: A hydraulic control device using a hydraulic driving machine is provided to control hydraulic pressure by comprising a hydraulic actuator with a clearance pocket and an accumulator for supplying oil to the hydraulic actuator. CONSTITUTION: A hydraulic control device comprises a hydraulic actuator(110), an oil supply line, an oil discharge line, a pilot valve(130), and an accumulator(140). The hydraulic actuator has a clearance pocket. The oil supply line and the oil discharge line are connected to the hydraulic actuator. The pilot valve is connected to the oil supply line and the oil discharge line. The accumulator additionally supplies oil to the hydraulic actuator.