Abstract: A marine air conditioning unit, according to various embodiments, can include a base plate having one or more mounting holes. A main unit is supported on the base plate comprising an evaporator, a compressor, a compressor driver, a condenser, an electronic expansion valve, a blower, an electrical pressure sensor and a condensation pan operatively coupled together. The compressor can be a variable speed inverter brushless direct current (BLDC) compressor. The electronic expansion valve can be located in a refrigerant line connecting the condenser to the evaporator. A controller can constantly receive and, using an algorithm, analyze sensor information from multiple sensors positioned within the main unit. Based on the sensor information, the controller can transmit a control signal to various components and further adjust the electronic expansion valve to control the precise amount of refrigerant to pass to the evaporator.

Abstract: Hydraulic axial piston unit having a rotational group for driving or being driven by a driving shaft, and a tiltable displacement element for adjusting the displacement volume of the rotational group. The rotational group includes a rotatable cylinder block in which working pistons are mounted reciprocally moveable in cylinder bores for conveying hydraulic fluid from an inlet port to an outlet port on a valve segment. At least two control ports are located on the valve segment each between the inlet port and the outlet port. The control ports can be brought sequentially in fluid connection with the cylinder bores when the cylinder block is rotating. At least one hydraulic fluid injector is connected fluidly to one control port, for sequentially injecting pressurized hydraulic fluid via the control port into the passing cylinder bores. Via the other control port hydraulic fluid can be drained from passing cylinder bores.

Abstract: The invention relates to a method (19) of operating a hydraulic arrangement (1) including a mounting base (5), a boom (3) that is pivotably arranged on the mounting base (5), and a Z-kinematics (2) that is arranged on the boom (3). The Z-kinematics (2) tilts a tool attachment device (10), that is pivotably arranged on the boom (3). The boom (3) is moved by a lifting hydraulic piston (7) that is connected to the boom (3) and to the mounting base (5). The Z-kinematics (2) is moved by at least a tilting hydraulic piston (11) that is connected to a lever of the Z-kinematics (2) and to the mounting base (5). On application of an input control command for changing the position of the lifting hydraulic piston (7), a compensation command is automatically generated and applied to the tilting hydraulic piston (11), to essentially maintain the attitude of the tool attachment device (10).

Abstract: An apparatus configured to test an electrical system including one or more power supplies, a load, and one or more protective-isolation devices disposed between the one or more power supplies and the load is disclosed. The apparatus has a first measurement assembly configured to sense a first voltage or a first current at an input side of the one or more power supplies, a second measurement assembly configured to sense a second voltage or a second current at an output side of the one or more power supplies, and a third voltage or a third current between the one or more protective-isolation devices and the load, and a power controller electrically disposed between the second or third measurement assembly and a fault assembly. The fault assembly and the power controller are configured to selectively induce a fault, which is selected from a plurality of fault types, either to the output side of the electrical system or between the one or more protective-isolation devices and the load.

Abstract: The present invention provides a charging system for a mobile and portable high-capacity Electrical Vehicle (EV) charging station. The charging system comprises a plurality of propane tanks for generating power, a generator, an EV charger, a voltage selector switch, a plurality of solar panels for charging on-board batteries due to parasitic loads, a communication backhaul, a security device, and a diagnostics and monitoring device for monitoring the plurality of tanks, the generator, and the EV charger. The charging system of the present invention are configured to be used in different platforms—for example, skid integrated, truck mounted, trailing integrated, and in a pod.

Abstract: A control arrangement for a variable displacement pump includes a pressure control unit and a separate mechanical control unit, each mounted on a housing of the variable displacement pump. The pressure control unit provides pressure control for the variable displacement pump and the mechanical control unit provides rotary feedback control for the variable displacement pump.

Abstract: A pump control system, comprising: a motor (12) configured to drive a pump (14); a pressure relief valve (22) in fluid communication with the pump (14); a torque control valve (32) connected to a swashplate of the pump (14) and in fluid communication with the pressure relief valve (22); a swashplate angle sensor (36) connected to the swashplate (34); and a computer (40) connected to the swashplate angle sensor (36) and the pressure relief valve (22) wherein the computer (40) controls the pressure relief valve (22) based upon swashplate displacement to achieve maximum system pressure. The corresponding method of controlling is also disclosed.

Abstract: A hydraulic piston unit including a rotational group for driving or being driven by a driving shaft, and having a tiltable displacement element for adjusting the displacement volume of the rotational group between a minimum or a maximum displacement, wherein, on t valve segment between a kidney-shaped inlet port and a kidney-shaped outlet port at respective dead end positions of reciprocally moveable working pistons first and second control ports are located in fluid connection with cylinder bores in the cylinder block, for controlling the position of the displacement element. The hydraulic piston unit further includes a control valve with a shiftable control valve spool fluidly connected via a high pressure port to a high pressure side of the hydraulic piston unit. The control valve spool is configured to conduct hydraulic fluid from the high pressure side to one of the first or the second control port.

Abstract: A magnetic component for an electronic circuit includes first and second bobbins having respective core-receiving passageways. Each bobbin includes multiple slots with a winding insert in each slot. The winding inserts function as windings as well as guides for winding a coil of wire around the respective bobbins. The first and second bobbins are positioned on respective first and second legs of a magnetic core. The coils of wire are wound on the two bobbins in opposite directions such that the magnetic fluxes provided by the coils are in phase. The winding inserts have connection prongs that can be positioned in opposite direction such that the winding inserts of the first bobbin are connectable to a first printed circuit board and the winding inserts of the second bobbin are connectable to a second printed circuit board.

Abstract: According to the present disclosure, a steering system and method for a machine includes a vehicle control system configured to command steering of the machine, and a steering sensor in communication with the vehicle control system. The steering sensor is configured to detect a position of a steering actuator of the machine. The vehicle control system is configured to detect an acceleration rate of the machine and to command steering of the machine based at least in part on the position of the steering actuator and the acceleration rate of the machine.

Abstract: A louvered panel assembly restricts the ingress of contaminants into an enclosure. The louvered panel assembly includes a first louvered panel, a second louvered panel, and a third louvered panel. The first louvered panel has a first plurality of louvers extending arcuately, downwardly, and outwardly from a first plate. The second louvered panel is coupled to the first louvered panel and has a second plurality of louvers extending arcuately, downwardly, and inwardly away from a second plate that is spaced apart from the first plate. The third louvered panel is coupled to the second louvered panel and has a third plurality of louvers extending arcuately, upwardly, and inwardly away from a third plate that is spaced apart from and extends approximately parallel to the second plate.

Abstract: A pre-fabricated and pre-engineered integrated skeletal frame for a room is discussed. In an embodiment, the pre-fabricated and pre-engineered integrated skeletal frame is for an electrical room with its electrical equipment installed, wired up, and tested offsite in a factory. The pre-fabricated and pre-engineered integrated skeletal frame can have rigging components such as lifting eye hooks and temporary structural cross connect bracing for rigging. The prefabricated room can have electrical equipment mounted inside, wired up, and tested off site at the factory and then be shipped to the construction site.

Abstract: A bearing attachment system for a pump product having a seal carrier and a cover plate. The attachment system is configured to produce a force deflection curve that provides a clamping force on a pair of tapered roller bearings such that a tight bearing endplay on the tapered roller bearings is maintained through a full range of manufacturing tolerances. The geometric shape of the cover plate and the top surface of the seal carrier provide the desired deflection characteristics.

Abstract: The invention relates to a method (25) of determining the health status of a hydraulic circuit arrangement comprising at least one hydraulic fluid working machine (2, 3). The health status is determined (29) using at least in part an actual temperature information (12) of the hydraulic circuit arrangement (1) that is compared to an expected temperature information (24) of the hydraulic circuit arrangement (1).