An operation detecting system for a fluid pressure actuator is provided with a first pressure sensor for detecting a first pressure value which is a pressure value in a first pressure acting chamber, a second pressure value which is pressure value in a second pressure acting chamber, and an operation detecting device including a detection program configured to calculate an addition value of the first pressure value and the second pressure value, calculate a time differential value of the addition value, and detect the start time and the stop time of movement of a piston based on a variation in the time differential value over time.

Device with hydraulic system actuates first and second hydraulic consumers. The hydraulic consumers (10, 12) can be supplied with fluid at a predefinable pressure at least via a flow divider (26) for dividing a fluid flow from a pressure supply (P) into predefinable part flows leading to the respective hydraulic consumer (10, 12). A fluid flow from the hydraulic consumer (10) with higher pressure loading via the flow divider (26) to the hydraulic consumer (12) with lower pressure loading can be suppressed by one shut-off device (38) arranged between the flow divider (26) and at least one hydraulic consumer (12). The shut-off device (38) is arranged in a fluidic connection (F2) from the flow divider (26) to the hydraulic consumer (12) with lower pressure loading.

An operation detecting system for a fluid pressure actuator is provided with a first pressure sensor for detecting a first pressure value which is a pressure value in a first pressure acting chamber, a second pressure value which is pressure value in a second pressure acting chamber, and an operation detecting device including a detection program configured to calculate an addition value of the first pressure value and the second pressure value, calculate a time differential value of the addition value, and detect the start time and the stop time of movement of a piston based on a variation in the time differential value over time.

A thrust reverser device for an aircraft turbojet engine nacelle an electro-hydrostatic actuation system that includes a motor pump and a first actuation assembly. The first actuation assembly includes a series of at least two actuators configured to be attached to a movable cover of the thrust reverser and to move the movable cover or covers between a retracted position and a deployed position relative to the nacelle. The first electro-hydraulic actuation system further includes a volumetric flow divider with an inlet connected to the motor pump and at least two outlets, wherein each outlet is connected to an actuator. The volumetric flow divider is configured to receive a fluid and to supply the fluid to the actuators with an equal flow rate.

This invention relates to a new and improved hydraulic squeeze tool for compressing and stopping flow through a lay flat or poly hose, such invention engineered to increase the speed and efficiency when cutting flow and fluid transfers in pipe and hose systems in domestic, commercial, or heavy industrial applications.