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Sealing system for an internal combustion engine with a divided casting enclosure

A sealing system, a technology for a multi-cylinder internal combustion engine, which is applied to the sealing of the engine, the sealing device of the engine, mechanical equipment, etc., to achieve the effects of reliable sealing, simple structure and low component cost

Inactive Publication Date: 2007-06-20
赫驰动力公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there there is no separate cylinder head in the recess of the split casting housing, so there are other problems with cylinder head sealing and combustion chamber sealing

Method used

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  • Sealing system for an internal combustion engine with a divided casting enclosure
  • Sealing system for an internal combustion engine with a divided casting enclosure

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Embodiment Construction

[0026] FIG. 1 shows a schematic sectional view of a first embodiment of the sealing system according to the invention along the half-shell parting plane of the housing. The arrangement of a cylinder liner 1 and part of the cylinder head 2 in the recess of a housing half-shell 3 can be seen in the sectional view shown.

[0027] The cylinder liner 1 has an extension above the dotted line 6 designed as a sealing flange 5 which is integral with the cylinder liner 1 . An annular sealing element in the form of a separate annular seal 4 bears against the sealing collar 5 . A portion of the sealing flange 5 of the cylinder liner 1 is received by an annular groove 7 of the cylinder head 2 forming a press fit.

[0028] The sealing flange 5 of the cylinder liner has a turned groove on its outer diameter, which consists of two tapered axially towards the cylinder head with different cone angles β or α and the outer surfaces 8 and 9 composed of conical sections. The annular seal 4 rests...

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Abstract

The invention relates to a sealing system for sealing a cylinder head (2) against a cylinder sleeve (1) of a single- or multi-cylinder internal combustion engine, notably a four-stroke diesel engine, with a divided cast iron crankcase consisting of two half-shells (3) connected to each other by screws, and wherein the joint plane runs in the direction of the crankshaft and the cylinder axis. The half-shells (3) comprise recesses for housing separate cylinder sleeves (1) and separate cylinder heads (2) are provided for each cylinder. The inventive sealing system comprises an annular sealing element. An annular groove (7), being open towards the combustion chamber, is provided in the cylinder head (2) and arranged in such a way that at least part of the prolongation of the cylinder sleeve (1) configured as sealing unit (5) is housed thereby forming a press fit. The annular sealing element is configured as a separate annular seal (4) which is supported on a sealing surface of the cylinder head (2) and radially supported on a sealing surface of the half-shells (3). Said annular seal thereby seals an annular gap (16) between the radially outer peripheral surface of the cylinder head (2) and the recesses of the half-shells.

Description

technical field [0001] The invention relates to a sealing system for a single-cylinder or multi-cylinder internal combustion engine, especially a four-stroke diesel engine, which seals the cylinder head relative to the cylinder liner. Faced in the direction of the crankshaft- and cylinder axis, where the housing half-shells have recesses for accommodating specific cylinder liners and each cylinder is provided with a separate cylinder head, the sealing system includes annular sealing elements. Background technique [0002] An internal combustion engine with a sealing system of this type is described in European patent EP0883740B1, the technical content of which is the background of the present invention. A metal ring seal is used here for water and gas sealing of the combustion chamber (see Figure 5) between the cylinder head and the cylinder liner, which is sandwiched between the sealing surfaces of the cylinder liner and the cylinder head between. An axial force which is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J10/00F02F11/00
CPCF16J15/062
Inventor 京特·卡姆皮希莱尔托马斯·施蒂格尔鲍尔
Owner 赫驰动力公司
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