Abstract: An apparatus with a bus bar, a heat-pipe, and device, which has a metal structure, a metal element, and a transistor. The metal structure may include first and second surfaces, that are flat and opposite facing. The metal element may include first and second surfaces that are flat and opposite facing. The transistor may include first and second terminals between which electrical current is transmitted when the transistor is activated. The first and second terminals may include first and second surfaces, respectively, that are substantially flat and opposite facing. The first and second surfaces of the first and second terminals, respectively, may be sintered to the first and second surfaces, respectively, of the metal structure and the metal element, respectively. The heat-pipe is thermally connected to the bus bar. The second surface of the metal structure is electrically and thermally connected to the bus bar.

Abstract: An expandable electrical distribution skid can be manufactured as a monolithic, pre-wired, pre-engineered, and pre-assembled integrated platform to provide a critical power supply and distribute electrical power distribution, which can expand from a collapsed state to an expanded state, and vice versa. The expandable electrical distribution skid can be manufactured as a monolithic, pre-wired, pre-engineered, and pre-assembled integrated platform, where the frame is broken up into multiple segments. The different segments of framework for the expandable electrical distribution skid are coupled to connect to a common expansion track in order to move one or more of the segments at least one of i) inward to collapse and ii) outward to expand.

Abstract: A hydraulic control system for linear actuation that includes an electric motor connected to a hydraulic pump and a hydraulic cylinder connected to the pump by a first flow line. A pressure transducer, a pressure control valve, and a check valve are connected to the first flow line between the pump and the cylinder and a tank is connected to the pump by a second flow line and the cylinder by a return line. A control valve is connected between the first flow line and the return line.

Abstract: An apparatus with a bus bar, a heat-pipe, and device, which has a metal structure, a metal element, and a transistor. The metal structure may include first and second surfaces, that are flat and opposite facing. The metal element may include first and second surfaces that are flat and opposite facing. The transistor may include first and second terminals between which electrical current is transmitted when the transistor is activated. The first and second terminals may include first and second surfaces, respectively, that are substantially flat and opposite facing. The first and second surfaces of the first and second terminals, respectively, may be sintered to the first and second surfaces, respectively, of the metal structure and the metal element, respectively. The heat-pipe is thermally connected to the bus bar. The second surface of the metal structure is electrically and thermally connected to the bus bar.

Abstract: A hydraulic control system for linear actuation that provides a bypass flow during startup of a lifting command, provides a split flow between a cylinder and a reservoir once a minimum operating speed of a pump has been reached, and provides complete flow to a cylinder after the minimum operating speed of the pump has been reached. This is achieved through control of a flow control valve and a proportional flow control valve by a processor.

Abstract: An apparatus may include a first device having a first metal structure, a first metal element, and a first transistor. The first metal structure may include first and second surfaces, that are flat and opposite facing. The first metal element may include first and second surfaces that are flat and opposite facing. The first transistor may include first and second terminals between which 1 amp or more of electrical current is transmitted when the first transistor is activated, wherein the first and second terminals may include first and second surfaces, respectively, that are substantially flat and opposite facing. The second surface of the first metal structure can be electrically and thermally connected to a bus bar. The first and second surfaces of the first and second terminals, respectively, may be sintered to the first and second surfaces, respectively, of the first metal structure and the first metal element, respectively.

Abstract: There is described a power supply unit having at least one alternating current (AC) input and at least one direct current (DC) output for producing an output voltage. The power supply unit comprises at least one input transformer coupled to the at least one AC input and at least one rectification circuit defining an AC side and a DC side, and coupled to the at least one input transformer on the AC side. The at least one rectification circuit comprises a diode rectifier section on the AC side comprising at least one set of diode rectifiers, and a controlled rectifier section in series with the diode rectifier section and configured for producing a variable load voltage to modulate the output voltage between a base voltage and a maximum value of the output voltage using at least one set of three single-phase controlled rectifiers usable as one to three DC outputs to form a three-phase controlled rectifier.

Abstract: An anti-stall system to prevent an engine, particularly a low-powered engine, from stalling when encountering a load that the machine is capable of overcoming but due to the nature of the engine, the load encounter would result in a stall. The system includes a hydraulic system in communication with a control system that has one or more sensors that detect, determine, and/or transmit an operational variable. The control system further comprises a plurality of anti-stall blocks having unique configurations, including a first configured to limit output flow upon determination of an engine droop, a second configured to limit output flow based on available engine torque, a third configured to limit output pressure upon rapid engine droop detection, and a fourth configured to prioritize and share output flow between the machine functions.

Abstract: A system and method for secure remote control of a machine includes transmitting video data from a camera on the machine to an operator controller located at a remote operation station, and receiving, at a machine controller of the machine, an operator control message from the operator controller. The operator control message is based on an input device actuated in response to the video data. The method further includes confirming validity of the operator control message based, at least in part, on the video data transmitted from the camera to the operator controller, and controlling the machine with the operator control message when validity of the operator control message is confirmed.

Abstract: A method for a fault ride through testing of an electrical system including one or more power sources, one or more power consumers, and a first protective-isolation device and a second protective-isolation device both disposed between the one or more power sources and the one or more power consumers is disclosed. The method includes prior to the fault ride through testing, opening the second protective-isolation device, and closing the first protective-isolation device, and during the fault ride through testing, opening both the first and second protective-isolation devices to block current flow between the one or more power sources and the one or more power consumers. The method also includes during the fault ride through testing, decreasing a terminal voltage of the one or more power sources using a voltage regulator, and following the fault ride through testing, opening the first protective-isolation device, and closing the second protective-isolation device.

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: 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.