Submersible hydraulic power units with interchangeable manifolds for hydraulic systems are provided. In one embodiment, submersible hydraulic power unit (“SHPU”) for moving hydraulic fluid between a first chamber and a second chamber of a hydraulic device is provided, the SHPU comprising: a tank for storing hydraulic fluid, wherein the tank houses: a motor submerged in the hydraulic fluid, the motor having a powered on and a powered off configuration based on at least one command signal; and a pump submerged in the hydraulic fluid and connected to the motor, wherein the motor drives the pump to route the hydraulic fluid in and out of the tank; and a lid attached to the tank, wherein the lid comprises at least one opening allowing an interchangeable manifold to connect to the pump.

A power unit with manual override control for a hydraulic system having an initial state and at least one operational state is provided, comprising: a tank for storing hydraulic fluid that moves between a first chamber and a second chamber of a hydraulic cylinder; a pump that routes the hydraulic fluid in and out of the tank; a first relief valve; a first solenoid valve configured to shift between a plurality of positions based on the at least one operational state of the hydraulic system; a first check valve connected to the first solenoid valve; a manual override control unit comprising: a second check valve; and a second solenoid valve configured to shift between a plurality of positions based on activation of a manual override control, wherein the activation of the manual override control returns the hydraulic system from the at least one operational state to the initial state.

An apparatus includes a base frame, first and second bins, first and second hydraulic assemblies, and a computer controller. The first hydraulic assembly is configured to selectively raise and lower the first bin relative to the base frame. The second hydraulic assembly is configured to selectively raise and lower the second bin relative to the base frame. The first and second hydraulic assemblies are individually actuable, and their actuation is coordinated by the controller. In another aspect, a method for transferring product using an apparatus includes inputting to a computer controller a first threshold rate of change in weight signals of a weight sensor; relaying a plurality of weight signals from the weight sensor to the controller; calculating a determination by the controller at least in part on whether the threshold rate of change has been exceeded; and automating actuation of a hydraulic assembly based on the determination.

A machine includes a first cylinder coupled to a first wheel and a second cylinder coupled to a second wheel. A first proportional dampening valve fluidly connects to the first cylinder and a second proportional dampening valve fluidly connects to the second cylinder. First accumulators are fluidly connected to the first cylinder and the first proportional dampening valve, and second accumulator(s) are fluidly connected to the second cylinder and the second proportional dampening valve. Additionally, a first proportional flow control valve fluidly connects to the first cylinder and a second proportional flow control valve fluidly connected to the second cylinder. An electronic control module (ECM) communicatively couples to the first proportional flow control valve and the second proportional flow control valve to adjust a ride height of the first wheel via the first cylinder and a ride height of the second wheel via the second cylinder.

A trailer includes a metal frame, a first dump bed coupled to the frame substantially near a forward end of the frame, and a second dump bed coupled to the frame substantially near a rearward end of the frame. In an embodiment, the first dump bed is a side-dumping dump bed and the second dump bed is a rear-dumping dump bed.

A working machine vehicle provided with a supporting frame and a pivoted load container, wherein the vehicle is configured to allow tilting of the load container from a transport position to a tilted position for dumping of a load from the load container, wherein the vehicle is provided with a suspension arrangement configured to reduce transfer of vibrations between the frame and the load container when the load container is in its transport position, wherein the suspension arrangement comprises a spring element and a damper element, and wherein the vehicle further is provided with at least one hydraulic hoist cylinder connected between the frame and the load container arranged to lift and tilt the load container to the tilting position for dumping.

A system includes a trailer frame, a lifting mechanism coupled to the trailer frame, wherein the lifting mechanism is configured to raise or lower a coil of pipe or a reel of pipe, a braking mechanism configured to apply pressure to the pipe while the pipe is being deployed by the system, and a hydraulic power unit configured to hydraulically power the system.

A dump trailer and system for a semi-trailer truck are disclosed. The dump trailer and system includes a tub, a coupling plate configured to engage the dump trailer to the tractor, a first hydraulic cylinder hinge, a second hydraulic cylinder, and a draft arm attached to the coupling plate and the tub that cooperate to improve manufacturing economics and/or dumping of a load carried by the dump trailer.

An engine (12) drives a variable capacity-type hydraulic pump (16), discharged hydraulic oil is selectively supplied to a cooling fan (19) and a hoist cylinder (11) in accordance with switching of a selection valve (17), thereby controlling the same on the basis of each target value. A pump discharge pressure (Pp) of the hydraulic oil discharged from the hydraulic pump (16) and a motor supply pressure (Pm) of the hydraulic oil supplied to a hydraulic motor (18) via the selection valve (17) are detected by sensors (27, 28) and are compared with pressure determination values stored in advance as a pump discharge pressure (Pp) and an actuator supply pressure (Pm) generated when the target value is achieved. Presence/absence of abnormality in the hydraulic actuator control device (15) is determined on the basis of a result of the comparison, and when abnormality is determined to have occurred, control is performed to minimize the capacity of the hydraulic pump (16).

A collar for a telescopic cylinder with a cap includes the terminal portion of the cap that presents the opening of the cap, such that the collar includes in the following order a first annular element with a contoured profile, which surrounds the terminal portion and is welded thereto, and a second annular element, which can move with respect to the terminal portion and to the first annular element.

The collar further includes an O-ring, made of rubber, surrounding the terminal portion and a third annular element surrounding the terminal portion and welded thereto.

The first annular element has, at its internal circumference, an annular guide with a curved internal circumferential surface, the internal circumferential surface having, at each point of its circumference, a vertical cross-section with a shape that is concave as it progresses toward the outside of the collar.