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A Diesel Engine Integral Cylinder Head with Parallel Valve Arrangement

A cylinder head, integral technology, applied in the direction of cylinder head, cylinder, mechanical equipment, etc., can solve the problems of poor flow capacity of the air passage, poor thermal fatigue resistance, etc., achieve high flow capacity, reduce thermal stress, shorten length Effect

Active Publication Date: 2018-03-23
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects and problems of poor airway flow capacity and poor thermal fatigue resistance existing in the prior art, and provide a diesel engine with high airway flow capacity and good thermal fatigue resistance. cylinder head

Method used

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  • A Diesel Engine Integral Cylinder Head with Parallel Valve Arrangement
  • A Diesel Engine Integral Cylinder Head with Parallel Valve Arrangement
  • A Diesel Engine Integral Cylinder Head with Parallel Valve Arrangement

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Embodiment

[0042] see Figure 1 to Figure 3 , an integral cylinder head of a diesel engine with parallel valve arrangements, comprising a cylinder head body 1 and an air intake passage 5 and an exhaust passage 6 provided inside, and one side of the cylinder head body 1 is an air intake port provided with an air intake port The side end surface 2, the other side of the cylinder head body 1 is the exhaust side end surface 3 provided with the exhaust port. Two intake valve holes 41, two exhaust valve holes 42 and one fuel injector hole 43 are corresponding to the cylinder, and the center of the bottom surface 4 of the cylinder head is provided with a fire surface sealing tape 44, which wraps the two inlet valve holes. Valve hole 41 , two exhaust valve holes 42 , fuel injector hole 43 , and fuel injector hole 43 is located at the central position of fire surface sealing band 44 .

[0043] The intake valve hole 41 is close to the end surface 2 on the intake side, and the center line of the t...

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Abstract

An integral cylinder head of a diesel engine with parallel valve arrangement, comprising a cylinder head body and an intake port and an exhaust port arranged inside, one side of the cylinder head body is an air intake side end surface provided with an inlet port, and the cylinder head The other side of the body is the exhaust side end face provided with the exhaust port. The cylinder head body is an integral structure of multiple cylinders and one head. The bottom surface of the cylinder head of each cylinder is provided with two intake valve holes corresponding to the cylinder. 1. Two exhaust valve holes and one fuel injector hole, the intake valve hole is close to the end surface of the intake side, the center line of the two intake valve holes is parallel to the end surface of the intake side, the exhaust valve hole Close to the end surface of the exhaust side, the center line of the two exhaust valve holes is parallel to the end surface of the exhaust side, and two bolt holes are arranged on the bottom surface of the cylinder head between the sealing strips of the fire surfaces of two adjacent cylinders. An unloading groove is arranged between the two bolt holes. This design not only has high air passage capacity, but also has good thermal fatigue resistance.

Description

technical field [0001] The invention relates to a cylinder head of a diesel engine, in particular to an integral cylinder head of a diesel engine with parallel valve arrangement, which is mainly suitable for improving the air passage capacity and thermal fatigue resistance of the cylinder head. Background technique [0002] In order to meet the power, economy and emission requirements of diesel engines, the power density and explosion pressure of diesel engines continue to increase, and the thermal load on the cylinder head also increases accordingly. The problem of thermal fatigue failure of the cylinder head becomes more and more prominent. How to Improving the thermal fatigue resistance of the cylinder head has become the main point of the current diesel engine cylinder head design. [0003] Chinese Patent Authorization Announcement No. CN203685406U, the utility model of which the authorized announcement date is July 2, 2014 discloses a cylinder head of a diesel engine, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02F1/42F02F1/24
Inventor 李智张士斌陈功军张宏飞
Owner DONGFENG COMML VEHICLE CO LTD
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