Integrated aluminum alloy tank

Abstract

The invention relates to a general tank structure for a gasoline engine and a diesel engine, in particular to an integrated aluminum alloy tank. The integrated aluminum alloy tank comprises a cylinder body, a cylinder head, a cylinder cover and a crank chamber which are integrally formed by casting aluminum alloy materials; moreover, the cylinder head is provided with an air inlet and an air discharge port which are connected to a cylinder hole in the cylinder body respectively; the connection parts of the air inlet and the air discharge port on the cylinder hole are an inverted taper hole respectively; the large ends of the inverted taper holes are positioned on the end face of the cylinder hole; air valve push rod channels are arranged on the parts of the cylinder cover, which are opposite to the inverted taper holes; bushes are arranged in the air valve push rod channels; a stripped gating channel is formed on the outer wall of the cylinder hole and is intersected with a cooling fin on the outer wall of the cylinder hole; and a reinforcing rib is arranged on the outer wall of the air discharge port. The integrated aluminum alloy tank has novel design and a new structure, is manufactured by a new process, meets the requirements of energy saving and emission reduction and reduces manufacturing and assembly cost.

Description

technical field [0001] The invention relates to a general casing structure for a gasoline engine and a diesel engine, in particular to an integrated aluminum alloy casing. Background technique [0002] The box structure of the traditional gasoline engine and diesel engine is basically composed of three parts: cylinder block, cylinder head and cylinder head, and they are assembled together with positioning pins, bolts, gaskets, etc. to form a "multi-material "Constituted box structure. Mainly because the level of mold manufacturing, casting casting and mechanical manufacturing was insufficient in the past, the casing of the gasoline engine or diesel engine had many shortcomings in the process of processing, such as: [0003] 1. Because the crankshaft block, cylinder head, and cylinder head are manufactured separately, and then used through mechanical assembly, the material cost, manufacturing cost and assembly cost are relatively high, and the overall weight is relatively la...

AI Technical Summary

Problems solved by technology

[0003] 1. Because the crankshaft block, cylinder head, and cylinder head are manufactured separately, and then used through mechanical assembly, the material cost, manufacturing cost and assembly cost are relatively high, and the overall weight is relatively large

[0004]2. The traditional cylinder block is cast with cast iron cylinder liner, so the engine block is made of aluminum alloy and cast iron, and the thermal expansion coefficient of aluminum alloy and cast iron is different Large, the cylinder bore is prone to elliptical deformation after the engine starts working, which affects engine performance and emissions

[0005] 3. The traditional cast iron cylinder liner is produced by centrifugal casting process, which has high energy consumption, serious environmental pollution and low pass rate; and the cylinder bore containing the cylinder liner needs to be rough and fine honed before it can be used, while the rough and fine honed cylinder bore The honing fluid is dirty and pollutes the environment

[0006] 4. Since the cylinder bore of the cylinder block is a blind hole, the taper of the cylinder bore is large after honing, and the sealing effect between the piston and the cylinder bore is poor, which seriously affects the engine performance and emission

[0007] 5. After the cylinder body has waste of work and materials, the cast iron cylinder liner is treated as scrap iron, which increases a lot of bad costs

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