Engine

Abstract

The technical problem to be solved by the present invention is, when the cooling water tank of the engine is provided with a water supply port body, the supply port body has an outlet that can discharge the water vapor evaporated by the cooling water when the cooling water in the cooling water tank boils and expands, so as to prevent Water vapor and boiling cooling water burst out to the outside from the water supply port of the supply port body located on the top of the cooling water tank. The technical solution to solve this technical problem is to configure the cooling water tank (1) on the engine above the cylinder or the crankcase, and set the supply port body (2) with the water supply port (11a) on the top of the cooling water tank (1). The water passage (4) and the steam passage (3) are formed on the feeder body (2).

Description

technical field [0001] The present invention relates to a water-cooled engine, and more particularly to the configuration of a cooling water supply port provided on a cooling water tank above a cylinder or a crankcase. Background technique [0002] For a long time, water-cooled engines have been equipped with a water cooling jacket around the cylinder and a cooling water tank above the cylinder. Moreover, if the cooling water tank is communicated with the water cooling jacket, and when the cooling water in the water cooling jacket is heated when the engine is running, the cooling water rises and enters the cooling water tank, and the water in the cooling water tank that is colder than the cooling water replenishes and enters the water cooling jacket. Inside, the cylinder is cooled by circulating cooling water. Moreover, the top of the cooling water tank is provided with a supply port for cooling water. While the supply port is filled with cooling water, the inside of the co...

AI Technical Summary

Problems solved by technology

However, there is a possibility that the bubbles generated on the water surface due to boiling and the water surface rising due to volume expansion block the overflow path 104, thereby increasing the pressure inside the cooling water tank 101, and boiling water and steam burst out from the supply port 101a. question

[0005] Furthermore, the existing feed port structure also has the disadvantage that the cooling water entering the cooling water tank from the water cooling jacket cannot circulate well, and the cooling efficiency of the cooling water is low

Moreover, when water vapor occurs in the water cooling jacket and the cooling water tank, since the cooling water does not circulate well in the cooling water tank, the water level of the cooling water in the cooling water tank is still unstable (the water surface is uneven), resulting in cooling The problem that water tends to come out of the supply port

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