Semi-annular inclined surface symmetrical water absorption chamber cooling water pump

Abstract

The invention relates to improvement of a cooling water pump of an internal combustion engine, in particular to a semi-annular inclined surface symmetrical water absorption chamber cooling water pump. The semi-annular inclined surface symmetrical water absorption chamber cooling water pump comprises a pump case, wherein a water absorption chamber arranged at the middle part in the pump case is communicated with a water inlet pipe, an impeller is arranged in an annular pumping chamber at one side, a water seal position and a bearing position are arranged at the other side, the impeller, the water seal position and the bearing position are communicated with the water absorption chamber, a shaft coupling bearing is arranged in a bearing position of the pump case, a transmission belt wheel, a water seal and an impeller are respectively arranged on a shaft of the shaft coupling bearing, the left side of the pump case is also provided with an end cover, a sealing gasket is arranged between the end cover and the pump case, and the end cover and the sealing gasket are fixedly arranged on the pump case through screw bolts. Particularly, one side, near the water seal position, in the water inlet pipe of the pump case is fixedly provided with a triangular wedge-shaped water distribution block, a baffle plate is fixedly arranged in an opposite centering position of the water inlet pipe, the water inlet pipe and an inner cavity of the water absorption chamber are in an axial horn shape, and the inner cavity surface of the water inlet chamber arranged at one side of the water seal position is an inclined surface and is symmetrical by using the water inlet center line as the symmetrical axis. The semi-annular inclined surface symmetrical water absorption chamber cooling water pump solves the problems of low work efficiency, high noise and low service life caused by water seal impact of the existing annular water absorption chamber cooling water pump of the internal combustion engine, and is mainly used for the design of the internal combustion engine cooling water pump and the improvement on the existing water pump.

Description

technical field [0001] The invention relates to an improvement of a cooling water pump for an internal combustion engine, which is a cooling water pump for a semi-annular oblique plane symmetrical suction chamber. Background technique [0002] The water suction chamber of the existing internal combustion engine cooling water pump mainly adopts an annular structure, and the annular water suction chamber is filled with equal cross-section water, and the water suction chamber has no baffle plate. The existing problems of the internal combustion engine cooling water pump are: ①. The water velocity field is uneven and reversed, which is likely to cause large hydraulic loss and high noise of the cooling water pump; ②. The pump shaft and water seal in the ring-opened suction chamber are facing the water inlet channel of the suction chamber, and the water flow of the pump is impacting The water seal spring, seal ring and bellows on the pump shaft, the water seal spring is prone to...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of high noise, low working efficiency and low service life of water seal impact wear in the existing internal combustion engine cooling water pump, and provide a A kind of semi-annular slope symmetric suction chamber cooling water pump

Images