Air cylinder cover for four-valve diesel engine
A cylinder head and diesel engine technology, applied in the direction of cylinder head, cylinder, mechanical equipment, etc., can solve the problems of cracked cylinder head, ineffective cooling of the nose bridge area, and air passage occupying the space of the cylinder head, etc., to achieve the effect of ensuring cooling needs
A cylinder head and diesel engine technology, applied in the direction of cylinder head, cylinder, mechanical equipment, etc., can solve the problems of cracked cylinder head, ineffective cooling of the nose bridge area, and air passage occupying the space of the cylinder head, etc., to achieve the effect of ensuring cooling needs
CN102235263AInactive Publication Date: 2011-11-09GUANGXI YUCHAI MASCH CO LTD
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[0012] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
[0013] As shown in the accompanying drawings, the present embodiment is a cylinder head of a four-valve four-cylinder diesel engine. The cylinder head includes a cylinder head body 12, and the cylinder head body 12 is provided with an intake passage structure for supplying air to the cylinder. The intake channel mechanism includes a total intake channel 4, which is arranged on one side of the cylinder head body 12, and the filtered air is uniformly distributed to each cylinder by the total intake channel 4. The total intake passage 4 is provided with two single intake passages (i.e. single intake passage I 1 and single intake passage II 6) and three parallel intake passages for distributing the air in the total intake ...
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The invention discloses an air cylinder cover for a four-valve diesel engine, comprising an air cylinder cover body. An air inlet channel structure is arranged on the air cylinder cover body and comprises a total air inlet channel arranged at one side of the air cylinder cover body; the total air inlet channel is provided with a single air inlet channel and parallel cylinder-spanning dual air inlet channels, wherein the single air inlet channel is only communicated with the total air inlet channel and one air inlet seat ring hole; the parallel cylinder-spanning dual air inlet channels are simultaneously communicated with the total air inlet channel and the air inlet valve seat ring holes of two adjacent air cylinders; the parallel cylinder-spanning dual air inlet channels comprise a first branch channel, a second branch channel and a shared channel; the first branch channel and the second branch channel are respectively and directly connected with the air inlet valve seat ring holes of the two air cylinders and are respectively communicated with the shared channel; and the shared channel is connected with the total air inlet channel. Compared with the prior art, with the unique air inlet mechanism, the air cylinder cover disclosed by the invention can ensure that enough air enters the air cylinder; meanwhile, more space can be saved for setting a water jacket space; and the cooling requirement on the air cylinder cover is satisfied.
Description
technical field [0001] The invention relates to a cylinder head of a four-valve diesel engine, in particular to a cylinder head of a four-valve multi-cylinder diesel engine. Background technique [0002] At present, the domestic diesel engine cylinder head generally adopts a single intake port. The cylinder head with a single intake port has a simple structure, but the intake air volume is small, the power of the diesel engine is low, the fuel consumption is high, the diesel cannot be fully burned, and it cannot meet the continuously upgrading diesel engine emission requirements. In order to solve the defects of the aforementioned single-inlet cylinder head, technicians have developed a double-tandem-inlet cylinder head, which increases the amount of air intake by increasing the number of intake ports. Although the double-tandem intake port cylinder head can solve the problem of small intake air volume, the increased air passage occupies a large amount of space in the cylin...
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Patent Timeline
09 Nov 2011
Publication
CN102235263A
- IPC
- F02F1/42
- Inventors
- 秦江福; 杜义远