Air cylinder crankcase, and internal combustion engine having same

A technology of crankcase and cylinder, applied in the field of internal combustion engine

Inactive Publication Date: 2018-10-23
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a cooling chamber can be manufactured simply, but it cannot be implemented with the above-mentioned cylinder-crankcase with an integrally produced intermediate partition, since there is no space for placing the plate shell

Method used

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  • Air cylinder crankcase, and internal combustion engine having same
  • Air cylinder crankcase, and internal combustion engine having same
  • Air cylinder crankcase, and internal combustion engine having same

Examples

Experimental program
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Embodiment Construction

[0038] figure 1 with figure 2 A cylinder crankcase 10 according to the invention is shown having a first cylinder 12a, a second cylinder 12b, a third cylinder 12c and a fourth cylinder 12d. Such as figure 1 As shown, the cylinder crankcase 10 together with all the cylinders 12 a , 12 b , 12 c , 12 d consists of an integrally produced cylinder block 14 , wherein the cylinders 12 a , 12 b , 12 c , 12 d are surrounded by the cylinder block 14 . Intermediate partitions 16 are formed between the first cylinder 12a and the second cylinder 12b, between the second cylinder 12b and the third cylinder 12c, and between the third cylinder 12c and the fourth cylinder 12d, which will be opposite to each other. Adjacent cylinders 12a, 12b; 12b, 12c; 12c, 12d are separated from each other, respectively.

[0039] In particular by adding figure 1 and figure 2 as well as image 3 with Figure 7 In combination, it can be seen that in the cylinder block 14 a first cooling channel 18a with...

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Abstract

According to the invention, an air cylinder crankcase has a first cylinder (12a) and at least one second cylinder (12b), wherein the first cylinder (12a) and the second cylinder (12b) are enclosed byan integratedly-formed cylinder body (14) and are separated from each other by shared middle separation boards (16); the structure is characterized in that at least one first cooling pathway (18a), which has a sprial section (20a) that completely surrounds the first cylinder (12a) in circumferential direction, and a second cooling pathway (18b), which has a sprial section (20b) that completely surrounds the second cylinder (12b), are formed in the integratedly-formed cylinder body (14).

Description

field of invention [0001] The invention relates to a cylinder crankcase according to the preamble of claim 1 . The invention relates in particular to a cylinder crankcase with a first cylinder and at least one second cylinder, which are surrounded by a cylinder block produced in one piece and separated from each other by a common intermediate wall . Furthermore, the invention relates to an internal combustion engine having such a cylinder crankcase. Background technique [0002] In the case of such known cylinder crankcases, a greater heating of the material occurs in the region of the intermediate wall, especially if only one water jacket is provided which encloses all the cylinders of the cylinder crankcase in one piece. If the intermediate partition has a significantly higher temperature than the rest of the cylinder block, the cylinder will deform unevenly. This in turn leads to the disadvantage that the friction of the piston rings arranged on the piston in the pisto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/14F01P5/10
CPCF01P5/10F02F1/14F01P3/02F01P7/164F01P2003/021F01P2005/125F02F2001/104
Inventor T.沃伊克
Owner VOLKSWAGEN AG
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