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Diesel engine integral cylinder cover with air valves arranged in parallel

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

Active Publication Date: 2016-01-27
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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  • Diesel engine integral cylinder cover with air valves arranged in parallel
  • Diesel engine integral cylinder cover with air valves arranged in parallel
  • Diesel engine integral cylinder cover with air valves arranged in parallel

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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

A diesel engine integral cylinder cover with air valves arranged in parallel comprises a cylinder cover body, an air inlet channel and an air exhaust channel, and the air inlet channel and the air exhaust channel are arranged in the cylinder cover body. One side of the cylinder cover body is an air inlet side end face with an air inlet channel opening, and the other side of the cylinder cover body is an air exhaust side end face with an air exhaust channel opening. The cylinder cover body is of a multi-cylinder and one-cover integral structure. The part, corresponding to each cylinder, of a cylinder cover bottom surface is provided with two air inlet valve holes, two air exhaust valve holes and an oil injector hole. The air inlet valve holes are close to the air inlet side end face, and the center connection line of every two air inlet valve holes is parallel to the air inlet side end face. The air exhaust valve holes are close to the air exhaust side end face, and the center connection line of every two air exhaust valve holes is parallel to the air exhaust side end face. Two bolt holes are formed in the position, between flame face sealing tapes of every two adjacent cylinders, of the cylinder cover bottom surface, and an unload groove is formed between every two bolt holes. According to the diesel engine integral cylinder cover with the air valves arranged in parallel, the flow capacity of the air channels is high, and the thermal fatigue resistance is good.

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 Applications(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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