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Crosshead shoe

A crosshead slider, slider technology, applied in the direction of crossheads, engine components, machines/engines, etc., can solve problems such as defects and disadvantages of sliding surfaces

Inactive Publication Date: 2008-03-12
WAERTSILAE SWITZERLAND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this is difficult, the sliding surfaces made when repairing are sometimes defective
Furthermore, the limitation of the materials used for the coating, which can be applied by means of a casting method, is disadvantageous, since the sliding surfaces must have considerable dimensions for the materials that can be used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] FIG. 1 schematically shows a partial cross-sectional view of a diesel engine 1 . The diesel engine 1 is a direct-ventilation two-stroke diesel engine, which has a plurality of cylinders 10 located in a cylinder space 100 , wherein the cylinder space 100 is separated from an engine space 200 . A force is transmitted from a reciprocating piston 11 in a cylinder 10 via a piston rod 12, a crosshead journal 20 of a crosshead 2, a connecting rod (push rod) 21 and a crank , and finally transmitted to a crankshaft 201 of the engine. The crosshead 2 is guided along a linear slide by means of guides, ie by means of slides 3 and guide rails 4 . Lubricating oil 13' is fed into the crosshead through a lubricating oil inlet 13 and a delivery pipe 130 of a hinged structure for lubricating the slide block 3 and the cooling piston 11.

[0012] FIG. 2 shows the crosshead 2 in detail. The four crosshead slides 3 guide the crosshead 2 and thus the piston rods 12 so that they move linear...

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PUM

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Abstract

A material for the mounting of the slide block (3) is constructed as a bearing plate (5) which as a prefabricated component is fastened to a part acting as a support (30). The connection between the bearing plate and support is produced at least partially by means of a form lock created by a chamber open on the side on the support and the bearing plate which fits in it. The chamber in the support has a longish base surface which extends between two ends in the direction of the slide track (45), with a rib-type wall (30a) at both ends. An Independent claim is included for a diesel engine for mobile or stationary applications and equipped with the proposed crosshead-slide block arrangement.

Description

technical field [0001] The invention relates to a crosshead slide and a diesel engine with such a slide. Background technique [0002] In a reciprocating piston machine, in particular a large diesel engine operating according to two-stroke mode, a cylinder space of which is separated from an engine space, the piston rods are guided linearly along their longitudinal axes. The transmission of force from the piston rod to the connecting rod (push rod) of the engine takes place via crossheads which are guided on linear slides by means of guides. During the transmission of the guiding forces which always act between a slide of the crosshead and a supporting structure, great surface pressures arise. With suitable material pairing and lubrication, the frictional forces of the sliding movement are kept to a minimum and material wear is largely prevented. In known diesel engines, the crosshead slide consists of a carrier made of cast steel and a bearing layer or sliding surface, wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C5/00F02B3/06
CPCF02B3/06F02F2007/0097F16C5/00
Inventor K·雷斯
Owner WAERTSILAE SWITZERLAND