A portable hydraulic power unit includes a frame, a fluid tank supported by the frame, and a manifold supported by the frame. The fluid tank is configured to store a supply of hydraulic fluid for powering a hydraulically-driven tool. A reciprocating pump is mounted on the exterior of the fluid tank and on the exterior of the manifold. The reciprocating pump is secured to the fluid tank and the manifold with fasteners extending through a cylinder body of the reciprocating pump.

A portable hydraulic power unit includes a fluid tank supported on a frame, a first pump configured to draw hydraulic fluid from the tank and a second pump configured to draw hydraulic fluid from the tank. The portable hydraulic power unit further includes a two-way valve disposed on a high-flow line extending from an output of the second pump, the two-way valve movable between an open state and a closed state. The two-way valve is electrically-actuated and configured to shift to the open state based on a hydraulic fluid pressure in a combined flow line downstream of the first pump and the second pump exceeding a threshold pressure level. The two-way valve directs the output of the second pump back to the fluid tank when the two-way valve is in the open state.

A trigger guard for a pendant for controlling a hydraulic power unit includes a first prong extending from a front side of a handle of the pendant; a second prong extending from the front side of the handle; a groove disposed between the first prong and the second prong, the groove defined by the first prong, the second prong, and the handle; a first gap disposed between the first prong and a head of the pendant; and a second gap disposed between the second prong and the head. The trigger is disposed between the first prong and the second prong such that the trigger is accessible through the groove, the first gap, and the second gap.

A method for actuating a pump having a reciprocating piston or a diaphragm for pressure generation in a hydraulic system, the reciprocating piston or the diaphragm being moved by way of an actuator which is driven by a magnetic field of a magnet coil, and a system pressure in the hydraulic system being determined.

One or more techniques and/or systems are disclosed for a pumping system that includes a self-priming pump, a remotely coupled controller configured to operate the self-priming pump and other portions of the system, a discharge flow meter, and a bleed valve coupled to the self-priming pump. The system can be remotely accessed, programmed, and transmit data to a remote device. The bleed valve can comprise a loss of prime sensor in the body, and when the loss of prime is detected in the pump and/or the discharge flow meter detects a loss of flow, the pump and/or controller may be used to help re-establish prime in the pump by opening the relief outlet and operating the pump at an increased rate.

In some embodiments of the present disclosure, systems and methods for monitoring operation of a pump are provided. In some embodiments, a system comprises: a pressure switch, comprising: a PCB within a housing; a power supply; a wireless gateway module configured to establishes a wireless connection to a wireless network; a pressure sensor; a microcontroller that: establishes a second wireless connection to a mobile device; receives instructions from the mobile device; connect to the first wireless network based on the instructions; determine pressure; control operation of the pump based on the pressure; determine that a fault has occurred, automatically stop operation of the pump, and send a message to a server over the first wireless network; and receive instructions from the mobile device via the server and the first wireless network to change a setting of the pressure switch.

The invention discloses, inter alia, a thick matter conveying system (10), comprising a thick matter pump (16) for conveying thick matter, a thick matter distributor boom (18) for distributing the thick matter to be conveyed, the thick matter distributor boom (18) having a boom arrangement (40) comprising at least two boom arms (41), a substructure (30) on which the thick matter distributor boom (18) and the thick matter pump (16) are arranged, the substructure (30) comprising a supporting structure (31) for supporting the substructure (30) having at least one horizontally and/or vertically movable supporting leg (32), the supporting structure (31) having a stability region with a re-securing threshold and with an upper limit defined by a maximum stability parameter, and the at least one supporting leg (32) being able to be re-secured, a receiving unit (11) for receiving at least one item of operating information, a processing unit (12) for determining a stability parameter of the thick matter conveying system (10) depending on the at least one item of operating information received, and a control unit (13) for outputting a first control signal if the determined stability parameter of the thick matter conveying system (10) lies above the re-securing threshold, outputting of the first control signal suppressing re-securing of the at least one supporting leg (32).

A hydrostatic system includes a hydraulic system and at least one sensor configured to monitor a parameter of the hydraulic system, the at least one sensor including a wireless transmitter configured to generate wireless transmissions based on the parameter. The hydrostatic system further includes an electronic control box including a wireless receiver that is configured to receive the wireless transmissions generated by the at least one sensor. The electronic control box is configured to control the hydraulic system based at least in part on the received wireless transmissions.

Systems and methods are provided for a demand-based hydraulic system. A clutch is positioned between a hydraulic pump and an engine. The clutch is selectively engaged to power the hydraulic pump based on a level of demand for hydraulic power. A control system is also provided to control the clutch and/or the pump in accordance with a plurality of operating mode.

An apparatus to evacuate fluid from a pipe is disclosed herein. The example apparatus includes a pressure gauge coupled to a pipe, a fluid evacuation system coupled to the pipe, the fluid evacuation system to evacuate a first fluid from the pipe and, in response to the pressure gauge measuring a first pressure in the pipe, stop evacuating the first fluid from the pipe, and a gas supply coupled to the pipe, the gas supply to supply a second fluid to the pipe and, in response to the pressure gauge measuring a second pressure in the pipe, stop supplying the second fluid to the pipe.