5 results about "Injection pump" patented technology

A fuel delivery system (1) and a corresponding production method for producing a fuel delivery system (1) are proposed. The fuel delivery system (1) has a fuel filter (3) which purifies a fuel (9) delivered from an accumulator pot (5) to an internal combustion engine (7). Furthermore, the fuel delivery system (1) has a suction jet pump (15) for filling the accumulator pot (5) with fuel (9) from a fuel tank (11). A drive line (17) connects the suction jet pump (15) to the fuel filter (3). In this case, there is provided on the drive line (17) a first pressure valve (19) which opens in the direction of the suction jet pump (15) when a pressure on the fuel filter side exceeds a first threshold value.

The invention discloses a multistage centrifugal injection pump system with a supercharging attached pump. The multistage centrifugal injection pump system with the supercharging attached pump mainly includes a multistage centrifugal injection pump (1) connected with a water source (3), and a plurality of water injection pipes (2) respectively connected with the multistage centrifugal injection pump (1). The supercharging attached pump (4) is arranged between the multistage centrifugal water injection pump (1) and the water source (3). By that the low-power supercharging attached pump with a wide working range is connected in series before the multistage centrifugal injection pump, the multistage centrifugal injection pump system with the supercharging attached pump enables the high-power multistage centrifugal injection pump to work in a narrow high-efficient working area in the water injection system, adjusts the output delivery lift and flow of a water injection pump station, and improves the operating efficiency of the pump station.

The invention discloses a self-locking lifting tool for an injection pump of a diesel engine. The lifting tool comprises a fixed plate and a lifting rod mounted on the fixed plate, wherein a lifting lug and a positioning pin are respectively arranged on two positions, at two sides of the fixed plate, of the lifting rod, and the positioning pin and a spacer pin are arranged on a same side; a squarehole is formed in one end of the fixed plate, and correspondingly, a square flat position matched with the square hole is formed in the lifting rod; a mounting hole for mounting the spacer pin is also formed in the other end of the fixed plate; and the connecting line of axes of the square hole and the mounting hole is connected to any one side of the square hole in an oblique crossing manner. The self-locking lifting tool for the injection pump of the diesel engine provided by the invention is compact in structure and reasonable in design. An injection pump can be lifted by means of a craneassisted by the lifting tool, so that the labor intensity is reduced greatly, the production efficiency is improved, and the production safety is ensured.

The invention discloses an ore pulp pH value online titration measuring device. The ore pulp pH value online titration measuring device comprises an ore pulp sampling and processing device, an ore pulp secondary filtering device and an automatic titration device, wherein the ore pulp sampling and processing device further comprises an ore pulp lifting device, an ore pulp primary treatment device,a ore discharge valve, a sampling bypass valve and a sampling valve; the ore pulp secondary filtering device adopts a filter element gravity filtering mode to process the conveyed ore pulp solution, and further comprises a solution buffering barrel, a bypass valve, a filter tank, a filter element, a liquid level switch and an emptying valve; the automatic titration device is used for realizing automatic titration measurement by utilizing a photometric titration method, and further comprises a multi-path switching device, a sampling pump, a micro electromagnetic valve set, a first peristaltic pump, an injection pump and a photometric device. The ore pulp pH value online titration measuring device realizes online high-precision measurement of the pH value of the ore pulp, and the problems ofmeasurement precision and stability existing in an electrode method are solved.