Water inlet structure of cylinder jacket water jacket

Abstract

The invention discloses a water inlet structure of air cylinder sleeve water jackets. The water inlet structure comprises transverse water inlet channels and longitudinal water inlet channels. Each transverse water inlet channel extends outwards from a cylinder sleeve water division opening to be in an L shape. The outer side wall of each transverse water inlet channel and the outer side wall of the corresponding air cylinder sleeve water jacket are connected on the outer side of the corresponding cylinder sleeve water division opening to form an arc face. The outer side wall of each transverse water inlet channel and the outer side wall of the corresponding air cylinder sleeve water jacket are connected on the inner side of the corresponding cylinder sleeve water division opening to form a round face. Each longitudinal water inlet channel is connected to the tail end of the corresponding transverse water inlet channel and is in a dropping shape. A water inlet balance opening is formed in the tail end of each longitudinal water inlet channel. The sectional area of each water inlet balance opening is determined according to the thin-wall orifice flow calculation formula. The water inlet structure can guarantee even heat radiation of cylinder sleeves.

Description

technical field [0001] The invention relates to the field of water jackets, in particular to a water inlet structure of a cylinder jacket water jacket. Background technique [0002] Traditional engine cooling water flow direction: the cooling water enters from the water inlet of the body, then flows to the water jacket of the oil cooler and the main water inlet, and then cools the water jackets of each cylinder hole through the water diversion port, and then the cylinder jacket cooling water flows upwards to the cylinder head. Most of the traditional main water inlet and water diversion port are located at the waist of the cylinder liner of the body and above, and the water jacket of the cylinder hole is located in the body. [0003] The prior art mainly has the following problems: [0004] 1. The water channel and water inlet are located at the waist of the body cylinder bore and above. The lower part is cooled by convection or turbulent flow generated by temperature diffe...

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Problems solved by technology

[0005] 2. The water flow at the water diversion port is rapid, and the cylinder liner is vulnerable to cavitation

[0006] 3. The water flow flows from one end to the other end, and there is a pressure difference, resulting in a difference in the flow rate entering the water diversion port

[0007] 4. At the water diversion port, the water distribution ratio of cooling water flowing to both sides of the cylinder liner is uneven, causing uneven heat dissipation of the cylinder liner

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