8 results about "Gear pump" patented technology

A pump includes a casing defining an interior volume. The pump casing includes at least one balancing plate that can be part of a wall of the pump casing with each balancing plate including a protruding portion having two recesses. Each recess is configured to accept one end of a fluid driver. The balancing plate aligns the fluid displacement members with respect to each other such that the fluid displacement members can pump the fluid when rotated. The balancing plates can include cooling grooves connecting the respective recesses. The cooling grooves ensure that some of the liquid being transferred in the internal volume is directed to bearings disposed in the recesses as the fluid drivers rotate.

A gear pump includes a gear to be driven by a drive shaft, a pair of side plate members adjoining side surfaces of the gear, respectively, to restrain leakage of an operating fluid, and a tip seal member or seal block for sealing the gear tip or circumference of the gear. At least one of the side plate members and the tip seal member are integral parts of a sealing member.

In the invention, on the outer edge of a front pump cover is disposed a gear ring, on which are mounted an oil-mixing blade and an oil-transporting impeller. There is a hopper oil-guide casing outside the oil-transporting impeller. The gear ring is driven by a shaft gear at driven gear end through a middle gear.

An excavator hydraulic control system and method, relating to the technical field of excavator hydraulic control, including a LUDV load sensing valve, a control unit, a preset number of gear pumps, and two-position three-way electric control valves corresponding to the gear pumps one by one; The oil inlet of the two-position three-way electric control valve is connected to the oil outlet of the corresponding gear pump, and the two oil outlets of the two-position three-way electric control valve are respectively connected to the oil inlet of the LUDV load sensing valve. Each two-position three-way electric control valve is respectively connected to the control unit. The LS port of the LUDV load sensing valve is connected to a pressure sensor, and the pressure sensor is connected to the control unit. The control unit is divided into three The two-position three-way electric control valve is controlled in two stages. This excavator hydraulic control system and method have different flow rates under different pressures, thus solving the problem of energy loss due to the overflow of the overflow valve in the traditional excavator hydraulic control system and method. The problem.

The invention discloses a human body movement power generation device for a gymnasium and a manufacturing method thereof, the power generation device is composed of a mechanical system and a lithium battery charging power supply system, the mechanical system is formed by combined transportation of a driving assembly and a driven assembly, the driving system is a movement driving system, and the driven system is a gear pump driving hydraulic system; the gear pump driving hydraulic system is actually a gear pump driving system which is driven by a driven gear and used for pushing liquid in the liquid flow pipeline to flow in the fixed direction. Liquid in the liquid flow pipeline is specifically magnetic fluid, magnetic induction coils are arranged at the corresponding positions of the two sides of the pipeline carrying the magnetic fluid, and the lithium battery charging power supply system is connected with the magnetic induction coils through a power adapter arranged in the lithium battery charging power supply system. The human body movement power generation device is high in mechanical energy conversion efficiency, convenient to maintain, good in fitness effect, capable of protecting joints and easy to popularize.

A vacuum sintering wax steam dewaxing device and a dewaxing process relate to the technical field of wax steam dewaxing. The device comprise a tank body, a gas inlet pipe is arranged at a gas inlet inthe middle of the tank body, a gas outlet pipe is arranged at a gas outlet in the top of the tank body, the inner side end of the gas inlet pipe extends to an inner cavity of the tank body, a spraying assembly is arranged in the inner side end of the gas inlet pipe, a metal plate is arranged at the position, located below the spraying assembly, of an inner cavity of the tank body, fixing columnsare arranged on the side face of the metal plate, the metal plate is fixed to the inner wall of the tank body through the fixing columns, and a bionic lung is arranged on the upper portion of the inner wall of the tank body. A U-shaped spray pipe, a first spray head, a second spray head, the bionic lung, the spraying assembly, the metal plate and a gear pump which are arranged in the tank body arematched for use, wax and vacuum oil are fully contacted and mixed, so that the dewaxing purpose is achieved, and the vacuum oil can be periodically replaced through the matched use of an oil replacement pipe, the gear pump and other structures, the pipeline does not need to be disassembled for multiple times, the dewaxing rate is increased, and the leakage risk is reduced.