High-pressure oil pump with pressure stabilizing function

Abstract

The invention discloses a high-pressure oil pump with a pressure stabilizing function. The high-pressure oil pump comprises a main body, wherein a pipeline connector is fixedly connected to the position, close to the middle, of the upper end of the main body, a pressure adjusting valve is fixedly connected to the position, close to the middle, of the lower end of the main body, one side of the main body is sleeved with a fixing plate, a plunger is movably connected to one end of the fixing plate, a connecting pipe is fixedly connected to the other end of the main body, and a fixing mechanism is arranged on the outer side of the connecting pipe and comprises a cylindrical shell arranged on the outer side of the connecting pipe. According to the high-pressure oil pump with the pressure stabilizing function, through the threaded connection of a fixing knob and the cylindrical shell, the stable structure can promote the stability of oil pressure to play a stabilizing role, the situation that the pressure in the high-pressure oil pump is unstable due to pressure leakage caused by deformation can be avoided, and therefore the pressure stabilizing performance of the high-pressure oil pump can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of high-pressure oil pumps, in particular to a high-pressure oil pump with a voltage stabilizing function. Background technique [0002] With the rapid development of automobile technology, consumers have higher and higher requirements for automobile performance indicators, and automobile engine technology is also constantly improving. A series of new technologies such as turbocharging and direct fuel injection are being widely applied to gasoline engines. The direct injection technology requires high fuel injection pressure, and the engine needs to be matched with a high-pressure fuel pump to complete the fuel supply. The lifting force is provided by the cam on the camshaft, and the power is transmitted to the high-pressure oil pump through the oil pump tappet, so that the high-pressure oil pump provides high-pressure fuel for the engine under the action of this driving force. [0003] The traditional high...

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Problems solved by technology

[0003] The traditional high-pressure oil pump still has some disadvantages. When the hose is connected to the connecting pipe of the high-pressure oil pump during installation, most of them directly put the hose on the outside of the connecting pipe, and then fix the two through the clamp. The existing oil pipe connection When used, clamps are often used for connection. After long-term use, the clamps are prone to deformation, which may easily cause pressure leakage in the pump, resulting in unstable pressure in the high-pressure oil pump, thereby affecting the performance of the high-pressure oil pump.

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