Low-cost high-power modified diesel cylinder block

Abstract

The invention discloses a low-cost high-power modified diesel cylinder block, comprising a cylinder block, a cylinder sleeve arranged inside the cylinder block, and a cylinder cover arranged at the upper end of the cylinder block; a heat-insulating sleeve is disposed between the cylinder block and the cylinder sleeve, the upper end of the cylinder sleeve is supported on the heat-insulating sleeve through a flange, the flange is fixedly connected with the cylinder block through screws, a T-shaped heat-insulating sleeve and the heat-insulating sleeve, an inner annular cooling passage is provided between the heat-insulating sleeve and the cylinder sleeve, sealing slide grooves are arranged in the cylinder sleeve in the upper and lower ends of the inner annular cooling passage respectively, seal rings are arranged slidably in the slide grooves, the outer sides of the seal rings are abutted to the heat-insulating sleeve, the inner sides of the seal rings are connected with the cylinder sleeve through springs, the outer side of the cylinder bock is evenly provided with a plurality of semicircular grooves and semicircular protrusions, the semicircular grooves and the semicircular protrusions are staggered, and stiffeners are arranged between the adjacent semicircular protrusions.

Description

technical field [0001] The invention relates to a diesel engine accessory, in particular to an improved diesel engine cylinder block with low cost and high power. Background technique [0002] The diesel engine converts the chemical energy generated by the instantaneous combustion of diesel in the cylinder into mechanical energy to drive the piston to move, thereby pushing the crank mechanism to move. Diesel engine cylinder block is a vital part of diesel engine, and its structure has a profound impact on the operation of diesel engine. Due to the fact that the cylinder liner of the existing diesel engine will generate a lot of heat during operation, since the cylinder liner and the cylinder block are directly connected to each other by screws, a heat conduction bridge will be generated, and the heat of the cylinder liner will be quickly transferred to the cylinder block, causing the cylinder block to Overheating is easy to cause thermal deformation. At the same time, the e...

AI Technical Summary

Problems solved by technology

Due to the fact that the cylinder liner of the existing diesel engine will generate a lot of heat during operation, since the cylinder liner and the cylinder block are directly connected to each other by screws, a heat conduction bridge will be generated, and the heat of the cylinder liner will be quickly transferred to the cylinder block, causing the cylinder block to Overheating is easy to cause thermal deformation. At the same time, the existing diesel engine cylinder itself does not have a good cooling structure, the heat dissipation effect is poor, and the service life is short. In addition, the existing diesel engine cylinder has a thick wall thickness and poor structural strength. High production cost and high damage rate

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