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multi-piece wiper ring

A scraper ring, multi-piece technology, applied to piston rings, engine components, machines/engines, etc., can solve problems such as increased wear and damage to cylinder walls, and achieve the effect of reducing particle pollution

Active Publication Date: 2022-04-05
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage of this wiper ring is that the determination of the relative position of the two ring rails with respect to the spring results in a determination of the relative position of the ring rails to each other, which can lead to increased wear phenomena and / or severe damage to the cylinder walls of internal combustion engines of the reciprocating piston type. damage

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0028] exist figure 1 shows a multi-piece wiper ring 20 according to the invention (see Figure 4 and Figure 5 ) of the first embodiment of the first ring rail 10 with the ring opening 12 . image 3 In a similar manner, a first embodiment of the second ring rail 14 with the ring opening 16 of the multi-part oil control ring 20 according to the invention is shown. figure 2 The spring 18 of the multi-part oil wiper ring 20 according to the invention according to the first embodiment is shown, together with the first torsion-limiting element 34 and the second torsion-limiting element 36 .

[0029] The first ring rail 10 , the spring 18 and the second ring rail 14 are arranged concentrically one above the other in the axial direction (ie in the direction of travel of the reciprocating piston) in the installed state of the first embodiment of the oil wiper ring 20 according to the invention. ground layout. exist Figure 4 and Figure 5 The wiper ring 20 is shown installed i...

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Abstract

The invention relates to a multi-part oil control ring for a reciprocating piston (28) of an internal combustion engine of the reciprocating piston type, said oil control ring having a first ring track (10) and a second ring track (14) and At least one, at least partially radially outwardly acting spring (18), wherein the first ring rail (10) and the second ring rail (14) each have a ring opening (12, 16), and the The first ring track (10) and the second ring track (14) are arranged relative to each other, so that the ring opening (12) of the first ring track (10) and the ring of the second ring track (14) The openings (16) are arranged not one above the other, wherein at least one means (32) for torsion limitation is arranged or constructed such that the first ring rail (10) relative to the second ring rail (14) ) can be twisted in a limited torsional range in the circumferential direction, so that the ring openings (12, 16) do not lie on top of each other over the entire torsional range.

Description

technical field [0001] The invention relates to a multi-part oil control ring for a reciprocating piston of an internal combustion engine of the reciprocating piston type, said oil control ring having a first ring rail and a second ring rail and at least one, at least partially radial An externally acting spring, wherein the first and second ring rails each have a ring opening, and the first and second ring rails are arranged relative to each other such that the first ring rail The ring opening of the second ring rail and the ring opening of the second ring rail are not arranged one above the other. Background technique [0002] A multi-part oil wiper ring is known from WO 2005 / 083306 A2, which has two annular rails, called lamellas, and a spring arranged between the annular rails. In this oil wiper ring, the spring consists of a plurality of spring elements separated from one another in the circumferential direction. In this oil wiper ring, the relative movement between t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02F5/00F16J9/20F16J9/16
CPCF16J9/16F16J9/20F16J9/063F16J9/065
Inventor O.克涅布什
Owner VOLKSWAGEN AG
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