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Multi-cylinder internal combustion engine with increased useful life

A multi-cylinder internal combustion engine and cylinder technology, applied in cylinders, cylinder heads, mechanical equipment, etc., to achieve the effects of improving heat input and heat flow, good material mechanical pressure relief, and long service life

Inactive Publication Date: 2008-03-26
FEV MOTORENTECHN GMBH
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0002] In multi-cylinder internal combustion engines which are used in particular in commercial vehicles (such as trucks), the problem arises, on the one hand, to obtain a sufficiently high gas-tightness between the cylinder head and the cylinder block, and, on the other hand, to make the the stress is appropriate

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  • Multi-cylinder internal combustion engine with increased useful life
  • Multi-cylinder internal combustion engine with increased useful life
  • Multi-cylinder internal combustion engine with increased useful life

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Embodiment Construction

[0032] FIG. 1 shows a detail of a multi-cylinder internal combustion engine 1 . The schematic illustration shows a cylinder head 2 which is connected via a screw connection 4 to a cylinder block 3 , not specifically shown. With regard to the bolted connection 4 , the figure shows bores 5 in the cylinder head 2 , through which cylinder head bolts, not specifically shown, can be screwed into the cylinder block. A cylinder head gasket 6 is also provided between the cylinder block 3 and the cylinder head 2 . The cylinder head gasket is provided with an airtight gasket 7 for each cylinder. According to this example, the cylinder head has a first pressure relief groove 8 and a second pressure relief groove 9 , which, in terms of diameter 10 , can be delimited by an airtight gasket 7 surrounding the actual cylinder chamber. The relief grooves 8 , 9 are arranged within the diameter 10 . They are preferably respectively covered by the cylinder head gasket 6 . According to the devel...

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Abstract

The present invention relates to a multicylinder internal combustion engine with a cylinder head and with a cylinder block, which are fixed to each other by screw connections, where, between tie cylinder head and the cylinder block, a cylinder head seal is arranged, where, between two cylinders, a separate stress-relieving groove in the cylinder head is associated with each cylinder. The invention can also be used with individual cylinder heads. Moreover, a method is proposed by which an optimized design of at least one cylinder head is possible.

Description

technical field [0001] The invention relates to a multi-cylinder internal combustion engine having a cylinder head or a plurality of one-piece cylinder heads and a cylinder block, the cylinder block and the cylinder heads being fastened together by bolting. Background technique [0002] In multi-cylinder internal combustion engines which are used in particular in commercial vehicles (such as trucks), the problem arises, on the one hand, to obtain a sufficiently high gas-tightness between the cylinder head and the cylinder block, and, on the other hand, to make the The stress is appropriate. It is therefore known from DE 37 27 598 C2 to achieve an improvement of the gas tightness by centering the cylinder head gasket used in the cylinder head and in the cylinder block via grooves. In this way it is to be ensured that no misalignment can occur between the cylinder head housing, cylinder liner and crankcase due to the loads present. Accordingly, positioning grooves are also a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F11/00F16J15/06
CPCF02F1/24
Inventor 夫伦茨·约瑟夫·夸德弗利格塔内尔·格奇曼茨
Owner FEV MOTORENTECHN GMBH
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