A heat insulating vessel including an inner tank having a vertical axis to accommodate low temperature liquefied gas, an outer tank externally around the inner, and a low temperature liquefied gas pump disposed inside the inner tank. The outer tank having an upper part and an outer tank body. A lid structure having a heat-insulated structure detachably fitted into an upper part of the inner. The heat insulating vessel includes a first fastener to fasten with bolts, a first flange to upper ends of the inner and outer tanks upper part to a second flange to an outer circumferential part of the lid structure, and a second fastener to fasten with bolts, a third flange to an upper end of the outer tank body to a fourth flange to a lower end of the outer tank upper part. A vacuum insulating layer is formed between the inner and outer tanks.

A hydraulic power unit (“HPU”) with a submerged motor for moving hydraulic fluid between a first chamber and a second chamber of a hydraulic device is provided. The HPU may comprise 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.

A capacitor assembly and a method of making the capacitor assembly. The capacitor assembly includes: a power cable including first and second electrical conductors; a motor cable including first, second, and third electrical conductors, the first electrical conductor of the motor cable electrically connected to the first electrical conductor of the power cable, and the second electrical conductor of the motor cable electrically connected to the second electrical conductor of the power cable; a capacitor connected to the first electrical conductors and to the third electrical conductor; and a cover enclosing the capacitor, ends of the first conductors of the power cable and the motor cable connected to the capacitor, and an end of the third conductor connected to the capacitor, the first connection, and the second connection, and wherein after installation the capacitor assembly has an arcuate shape with a concave surface facing the pipe.

Systems, methods and devices are described providing a selective hydraulic or electrically powered prime mover that is a bi-directional power unit system, including movement within a device used to compress and/or expand a fluid and provide fluid movement. The use of a hydraulic power unit is involved and comprises at least a pump or other fluid moving device, a first set of selective control valves delivering pressurized fluid to the device(s), and a second set of selective control valves returning unpressurized fluid from the device(s), a reservoir comprising a compensator tank, a port for operation at ambient pressure, and a pressure measuring device measuring ambient pressure allowing for unbalanced flow to and from the device as well as thermal expansion or compression. The use of a multiport and in some cases a swashplate pump that incorporates the features and functions of several valves for the system is also described.

A home flood prevention appliance system includes controller circuitry disposed in a shroud above a cover of a sump basin, and a plurality of electrically operated sump pumps disposed in a lower portion of a structural frame positionable below the cover in the sump basin. The system also includes a water control actuator operable as a water main control device for a domestic water distribution network and a flow meter to measure the flow of municipal water supplied to the network. The controller circuitry configured to selectively energize the pumps to extract liquid from a sump basin based on a liquid level in the sump basin. The water control actuator controlled by the controller circuitry to shut off a municipal water supply to the domestic water distribution network in response to detection of a leak. Communication circuitry included in the home flood prevention appliance may wirelessly communicate.

A fuel pump, is disclosed, including a power group having a housing, a coil, a pole piece and a movable armature; a valve group including a valve body, a plunger connected to the armature, a bushing in which the plunger is disposed, an inlet chamber, an outlet chamber, a pump chamber, an inlet valve disposed between the inlet chamber and the pump chamber and an outlet valve disposed between the pump chamber and the outlet valve; and an inlet filter coupled to a fluid inlet of the valve group. The inlet filter is disposed relative to the coil such that when the fuel pump is disposed within a fuel tank, a bottom of the inlet filter as oriented in the fuel tank is disposed above a fuel level in the fuel tank and the coil is at least partly submerged in the fuel.

A horizontal automatic submersible pump includes a capacitive liquid level sensor, a circuit board and a motor. The capacitive liquid level sensor is arranged inside a casing of the horizontal automatic submersible pump. The capacitive liquid level sensor is configured to detect a liquid level outside the casing of the horizontal automatic submersible pump. The output terminal of the capacitive liquid level sensor is connected to the input terminal of the circuit board. The control terminal of the motor is connected to the output terminal of the circuit board. The circuit board is configured to control the motor to work or stop according to a detection signal of the capacitive liquid level sensor. The horizontal automatic submersible pump starts and stops automatically, and the capacitive liquid level sensor means there are fewer moving parts, which makes the pump less expensive to manufacture, more dependable and longer lasting.

A cleaning unit for a window or a sensor in a motor vehicle includes a reservoir for a cleaning liquid, at least one cleaning nozzle provided in or on a cleaning nozzle unit, a fluid connection between the reservoir and the cleaning nozzle and at least one spray pump provided between the reservoir and the cleaning nozzle. The spray pump is formed by a piston-cylinder unit that has a cylinder axis and is provided in or on the cleaning nozzle unit. The cleaning unit is characterized in that the piston of the piston-cylinder unit is designed as an electromagnetically actuated piston, which can be actuated in a first direction under the action of an electromagnetic force directed along the cylinder axis, which first direction forms a compression direction.

A pump control system receives inputs from a low level fluid level sensor, a high level fluid level sensor, and/or a temperature sensor. Based on inputs from the sensors, and in response to sensed trouble conditions, duplex pumping or pump specific simplex operation is restricted based on past and present pump current draws. Furthermore, using the temperature sensor and a temperature sensor output device, the temperature of the sump environment can be monitored at will from a remote location.

A pump for pumping a cryogenic liquid includes a pump housing defining an elongated cylinder. An elongated piston slides within the cylinder so that an intermediate fluid chamber, that is configured to receive an intermediate fluid, is defined within the cylinder adjacent to a first end of the piston and a fluid pumping chamber is defined within the cylinder adjacent to a second end of the piston. The fluid pumping chamber includes an inlet and an outlet. The pump housing is positioned within a sump. The sump is configured to receive and submerge a portion of the pump housing within the cryogenic liquid and to provide cryogenic liquid to the inlet of the pumping chamber for pumping. A sump jacket surrounds the sump so that a sump insulation space is defined therebetween. A pump jacket surrounds the pump housing so that a pump insulation space is defined therebetween.