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Water-cooled internal combustion engine cylinder head and water-cooled internal combustion engine with same

A technology for internal combustion engines and cylinder heads, which is applied to cylinder heads, machines/engines, cylinders, etc., and can solve the problems of large casting pollution and affecting the release and core pulling of die-casting molds

Inactive Publication Date: 2013-12-18
SHANGHAI JIAO TONG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sand and binder used in the production of the core, the dust of the core is cleaned, and the casting pollutes the environment more
The design of the existing water-cooled cylinder head structure affects the demoulding and core pulling of the die-casting mold, and cannot be made by die-casting technology

Method used

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  • Water-cooled internal combustion engine cylinder head and water-cooled internal combustion engine with same
  • Water-cooled internal combustion engine cylinder head and water-cooled internal combustion engine with same
  • Water-cooled internal combustion engine cylinder head and water-cooled internal combustion engine with same

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Embodiment Construction

[0057] exist figure 1 In , the dotted line expresses that the upper water hole 830 of the cylinder head is connected with the body and the water hole 73 of the cylinder head. The shape of the water cavity 83 of the cylinder head 80 is complex, surrounded by a shell, and can only be cast with sand cores. .

[0058] exist figure 2 Among them, the water chamber 83 of the cylinder head 80 accommodates the complex shapes of the air intake passage 887 and the exhaust passage 889, and the prior art cannot realize die-casting demoulding. It is a traditional prejudice that the cylinder head can only be cast as a whole, and the water cavity can only be cast with a mud core. The inventor chose the k-k parting surface to divide the cylinder head into an upper cylinder head and a lower cylinder head and make them separately, so that the die-casting demoulding and core pulling can be realized, and the water cavity, intake port, exhaust port and fuel injector hole can be formed by die-cas...

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Abstract

Disclosed are a water-cooled internal combustion engine cylinder head and a water-cooled internal combustion engine with the same, aiming to overcome defects that holes of a fuel sprayer, a gas feed channel and a gas exhaust channel in a water cavity of the water-cooled internal combustion engine cylinder head in the prior art are complicated in structure and the water cavity is covered by a casing of the cylinder head, so that design of die-casting mold is failed, and the die casting processes of normal stripping and core pulling cannot be performed to manufacture the water-cooled cylinder head. To realize manufacturing the water-cooled cylinder head by the die casting processes of normal stripping and core pulling, the cylinder head is manufactured as an integrated cylinder head by steps of split manufacturing, welding, binding, threading and / or riveting and is convenient to process, reliable in quality, economic, energy-saving and environment-friendly and prone to production and application in scale.

Description

technical field [0001] The invention relates to a water-cooled internal combustion engine, in particular to a water-cooled internal combustion engine cylinder head and a water-cooled internal combustion engine equipped with the cylinder head. Background technique [0002] Currently known water-cooled internal combustion engine cylinder heads have cooling water chambers. ZL200720139399.7 and ZL200410082513.8 patent specifications and accompanying drawings disclose a single-cylinder horizontal water-cooled diesel engine. The cooling water cavity of the cover contains the outer wall of the fuel injector mounting hole, the outer wall of the intake port, and the outer wall of the exhaust port. The shape of the water cavity is complex, and the water-cooled cylinder head needs to be cast with a water cavity mud core. The sand and binder used in the production of the mud core, the dust of the mud core is cleaned, and the casting pollutes the environment more. The design of the wate...

Claims

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Application Information

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IPC IPC(8): F02F1/36
Inventor 蒋尧夫
Owner SHANGHAI JIAO TONG UNIV
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