What is the construction principle of hand pump

Xingtai Beilong internal combustion engine parts Co., LTD. (the former Julu Beilong injection pump parts factory) is a professional manufacturer of internal combustion engine oil pump nozzle parts. Now we are working with Heze Huaxing oil pump nozzle Co., LTD., Longhua Automobile Parts Co., LTD., Jiangsu Sihong oil pump nozzle Co., LTD. Xinya Greenbauer electronic control nozzle Co., LTD., Nanyang Ntai test equipment Factory, Hengyang Nanyue Electronic control pump nozzle Co., LTD., Changzhou Borui oil pump nozzle Co., LTD., and other well-known domestic enterprises supporting. At the same time the production of railway locomotive accessories, mining accessories, ship accessories, construction machinery accessories. In addition to the current production of products, we can also be customized according to customer requirements of various specifications of fuel injection pump accessories.

Here's how it works:

Manual oil pump is composed of four parts: pump body part, handle part, oil storage tank and backseat part.

(1) Pump body part: The pump body part is the main part of the oil pump, high pressure working chamber, low pressure working chamber, two check valves, high pressure valve (safety valve), low pressure valve, unloading valve, two check valves, oil inlet and so on are all above. The holes are organically linked together.

(2) Two check valves are to prevent pressure oil backflow. The specification and function of two check valves are the same. Low pressure valves and high pressure valves are used for pressure control. The pressure was controlled at 1.5mpa and 63MPa respectively. The two steel balls at the inlet are check valves. After the completion of the work, loosen the unloading valve and the pressure oil flow back to the oil storage pipe to complete the unloading work.

(3) Handle: it is mainly composed of pressing rod and pressing handle. The pump body and plunger are connected by two pins. Hand power ACTS on the pressure rod and drives the plunger to reciprocate and produce oil pressure.

(4) The rear seat or above the fuel tank is provided with oil filling and air discharge holes. Loosen the screw to let out and let in. Open the air valve when in use.