Water discharge pipe structure and engine

Abstract

The invention discloses a water discharge pipe structure of an engine. The water discharge pipe structure of the engine comprises a water pump cushion block and a water discharge pipe integrated intoa whole. The water pump cushion block is provided with a water flow inlet communicating with a water outlet of a cylinder cover, and a water flow outlet communicating with the water discharge pipe; and a water flow channel communicating with the water flow inlet and the water flow outlet is arranged in the water pump cushion block. According to the scheme, the water discharge pipe and the water pump cushion block are integrated into a whole, so that the water discharge pipe has a function of the water pump cushion block; the structure is arranged on the water outlet of the cylinder cover on the front end of a machine body, a water pump is arranged on the water pump cushion block, water flows through the water pump cushion block from the cylinder cover so as to enter the water discharge pipe, and whether the water flows to large circulation or the water pump is decided through a thermostat in the water discharge pipe. The water flow channel is arranged in the water pump cushion block, so that a sufficient water flow cross section area is ensured, and the water flow speed does not exceed a limiting value. According to the scheme, the interference problem of the water discharge pipe and the water pump is solved, the height of the whole machine is reduced, the requirement on the height of a fan is met, and the space arrangement is more compact and reasonable. The invention furtherdiscloses the engine.

Description

technical field [0001] The invention relates to the technical field of engine components, in particular to a water outlet pipe structure and an engine. Background technique [0002] The engine water outlet pipe is a component that connects the engine water outlet hole and the water tank. In some engines, due to the height requirement of the fan, the fan needs to be connected to the water pump. Therefore, the water pump needs to be raised to the same height as the cylinder head. The water outlet of the cylinder head is connected to the water outlet pipe, so the water pump and the water outlet pipe will interfere. . The practice at this stage is usually to raise the water outlet pipe and bend it upwards to avoid the water pump. However, this solution makes the cross-sectional area of ​​the water flow insufficient, causing the water outlet flow rate to exceed the limit. In order to ensure sufficient cross-sectional area for water flow, the water pump needs to be extended towa...

AI Technical Summary

Problems solved by technology

The practice at this stage is usually to raise the water outlet pipe and bend it upwards to avoid the water pump. However, this solution makes the cross-sectional area of ​​the water flow insufficient, causing the water outlet flow rate to exceed the limit.

In order to ensure a sufficient cross-sectional area of ​​water flow, the water pump needs to be extended towards the front end. However, if the cantilever of the water pump is too large, the risk of failure will increase, and the height of the whole machine will also be high

Images