WO2001073323A2 - Sealing gasket on a movable piston in a cylinder - Google Patents

Sealing gasket on a movable piston in a cylinder Download PDF

Info

Publication number
WO2001073323A2
WO2001073323A2 PCT/YU2001/000007 YU0100007W WO0173323A2 WO 2001073323 A2 WO2001073323 A2 WO 2001073323A2 YU 0100007 W YU0100007 W YU 0100007W WO 0173323 A2 WO0173323 A2 WO 0173323A2
Authority
WO
WIPO (PCT)
Prior art keywords
gasket
another
sealing
cylinder
sealing gasket
Prior art date
Application number
PCT/YU2001/000007
Other languages
French (fr)
Other versions
WO2001073323A3 (en
Inventor
Dragić DRAGIČEVIĆ
Original Assignee
Dragicevic Dragic
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dragicevic Dragic filed Critical Dragicevic Dragic
Priority to AU46000/01A priority Critical patent/AU4600001A/en
Publication of WO2001073323A2 publication Critical patent/WO2001073323A2/en
Publication of WO2001073323A3 publication Critical patent/WO2001073323A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12—Details
    • F16J9/14—Joint-closures

Definitions

  • the invention belongs to the filed of the mechanical engineering and is referred to the sealing gasket on a piston of a cylinder for various usage: e.g. the internal combustion engines, various compressors etc. where it is necessary that the piston with a gasket seals the interior of a cylinder in which it moves.
  • the invention resolves the technical problem of full and long lasting sealing of space between the piston and a cylinder, without weakening of tightness when the gasket wears out.
  • a sealing gasket in the cases is quadrangle or rectangle shape in profile and it has the diameter larger that the diameter of the piston (and a cylinder) which is cut straight or in oblique or axial direction, then the radius of a gasket shall be shortened in purpose that it could be pressed and put into the piston channel and together with the piston into the cylinder.
  • the diameter of a gasket larger than the cylinder diameter is necessary because it shall be shortened in the process of friction and the gasket shall enlarge in the cylinder and provide the sealing but the distance of cuts shall enlarge and the air, fluid etc. shall leak more and more and the pressure, actually sealing, shall weaken.
  • In order to improve the sealing it is necessary to build in several gaskets with the crossed turned cut on a piston in purpose to make the way of air or fluid leaking longer and in accordance to the sealing shall be better.
  • the significance of the invention is to work out the clearance of the front of the composition of the gasket in order to avoid the weakening of the sealing of the gasket caused by wearing out and to reduce the number of gaskets.
  • This invention solves the problem with the three types of gaskets.
  • the first type has the ends (axial direction) one passing by the other, the length of passing by can be from few degrees to one circle and more (depending of the needs and purposes of the gasket). At the gaskets ends the safety fuses are placed.
  • the leaning interior sides of the passing by ends provide the sealing.
  • the second type of gasket has the ends curved in the shape of L profile axial direction so that L profile fit one into another and their inner folding surfaces provide the sealing with mutual axial leaning.
  • the front composition of L ends enlarges, but in axial direction L surfaces are always leaning to one another (and under pressure formed in the cylinder) provide the full sealing until the total wearing out of the gasket.
  • the third type of gasket has the ends curved in the shape of L profile in radial direction and radially fit one into another.
  • the front composition of L ends enlarges, but the interior radial L surfaces provide the sealing by their mutual pressure.
  • the matching, wearing out and lasting of the gasket sealing is established by the length of the curved L shaped ends.
  • the main characteristic of all three type of gasket is that one gasket could be sufficient for long lasting sealing. That means: reducing the total pressure of gasket on the interior of the cylinder, reduced friction and easier moving, reduced weight of movable mass and greater speed of the direction change of the piston motion etc.
  • these gasket constructions are applicable with interior combustion engines and the increase the number of revolutions and the strength of the engine. They are also applicable to compressors for air, fluid etc.
  • the main characteristic of the gasket is the long lasting, constant and full sealing.
  • Figure 1 represents the vertical section of a cylinder with the three-dimensional look of the sealing gaskets on the movable piston.
  • Figure 2. represents the three dimensional look of the third type of gasket with the matched ends.
  • Figure 1 shows the sealing gasket on the movable piston in the cylinder, the cylinder section 1, the movable piston 2 on which is the gasket with the passing by ends in axial direction for several degrees 3 and the other sealing gasket for one circle and several degrees of the second circle 4 and the safety fuses of the gaskets 6,7,8,9.
  • the third sealing gasket which has the ends curved in the L shape profile axial direction which fit one into another 5.
  • Figure 2 shows the look of the part of the third type of gasket with the fit ends, curved in the L shape profile radial direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Compressor (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

The sealing gasket (3) with the ends passing by one another, for several degrees, could be more if needed, as well as the sealing gasket (4) with the ends passing by one another in full circle and the few degrees of the second circle so that the inner surfaces of the passed by ends lean one to another (the passing by length depends on the intended use). The sealing gasket (5) which has the ends curved in L shape profile axial direction and which fit one into another. And the third type of gasket which has the ends curved in L shape profile radial direction which fit one into another. With the second and third type of gasket the sealing power shall not be reduced caused by the friction because the inner L curved surfaces (axial and radial) always lean one to another.

Description

SEALING GASKET ON A MOVABLE PISTON IN A CYLINDER
Engineering filed to which the invention is referred to
The invention belongs to the filed of the mechanical engineering and is referred to the sealing gasket on a piston of a cylinder for various usage: e.g. the internal combustion engines, various compressors etc. where it is necessary that the piston with a gasket seals the interior of a cylinder in which it moves.
Technical problem The invention resolves the technical problem of full and long lasting sealing of space between the piston and a cylinder, without weakening of tightness when the gasket wears out.
Technical state
Former construction of a sealing gasket (or ring) in the cases is quadrangle or rectangle shape in profile and it has the diameter larger that the diameter of the piston (and a cylinder) which is cut straight or in oblique or axial direction, then the radius of a gasket shall be shortened in purpose that it could be pressed and put into the piston channel and together with the piston into the cylinder. The diameter of a gasket larger than the cylinder diameter is necessary because it shall be shortened in the process of friction and the gasket shall enlarge in the cylinder and provide the sealing but the distance of cuts shall enlarge and the air, fluid etc. shall leak more and more and the pressure, actually sealing, shall weaken. In order to improve the sealing it is necessary to build in several gaskets with the crossed turned cut on a piston in purpose to make the way of air or fluid leaking longer and in accordance to the sealing shall be better.
The significance of the invention The essential idea of this invention is to work out the clearance of the front of the composition of the gasket in order to avoid the weakening of the sealing of the gasket caused by wearing out and to reduce the number of gaskets. This invention solves the problem with the three types of gaskets. The first type has the ends (axial direction) one passing by the other, the length of passing by can be from few degrees to one circle and more (depending of the needs and purposes of the gasket). At the gaskets ends the safety fuses are placed.
The leaning interior sides of the passing by ends provide the sealing. The second type of gasket has the ends curved in the shape of L profile axial direction so that L profile fit one into another and their inner folding surfaces provide the sealing with mutual axial leaning. Caused by frictions of the gasket, the front composition of L ends enlarges, but in axial direction L surfaces are always leaning to one another (and under pressure formed in the cylinder) provide the full sealing until the total wearing out of the gasket. The third type of gasket has the ends curved in the shape of L profile in radial direction and radially fit one into another. Caused by friction of the gasket, the front composition of L ends enlarges, but the interior radial L surfaces provide the sealing by their mutual pressure. With the second and the third type of gaskets, the matching, wearing out and lasting of the gasket sealing is established by the length of the curved L shaped ends. The main characteristic of all three type of gasket is that one gasket could be sufficient for long lasting sealing. That means: reducing the total pressure of gasket on the interior of the cylinder, reduced friction and easier moving, reduced weight of movable mass and greater speed of the direction change of the piston motion etc. these gasket constructions are applicable with interior combustion engines and the increase the number of revolutions and the strength of the engine. They are also applicable to compressors for air, fluid etc. The main characteristic of the gasket is the long lasting, constant and full sealing.
Brief description of the drawings
The invention is specifically described in the example of realization shown on the draft.
Figure 1. represents the vertical section of a cylinder with the three-dimensional look of the sealing gaskets on the movable piston.
Figure 2. represents the three dimensional look of the third type of gasket with the matched ends.
Detailed description of the invention
Figure 1 shows the sealing gasket on the movable piston in the cylinder, the cylinder section 1, the movable piston 2 on which is the gasket with the passing by ends in axial direction for several degrees 3 and the other sealing gasket for one circle and several degrees of the second circle 4 and the safety fuses of the gaskets 6,7,8,9. The third sealing gasket which has the ends curved in the L shape profile axial direction which fit one into another 5.
Figure 2 shows the look of the part of the third type of gasket with the fit ends, curved in the L shape profile radial direction.

Claims

Patent claims
1. The sealing gasket on the movable piston in the cylinder, indicated with the gasket (3) and (4) passing by on another in axial direction.
2. The sealing gasket on the movable piston in the cylinder, indicated with the gasket (5) having ends curved in the L shape profile axial direction, fitting one into another.
3. The sealing gasket according to the request 2 (Fig 2.), indicated with the gasket ends curved in the L shape profile radial direction fitting one into another.
PCT/YU2001/000007 2000-03-30 2001-03-19 Sealing gasket on a movable piston in a cylinder WO2001073323A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU46000/01A AU4600001A (en) 2000-03-30 2001-03-19 Sealing gasket on a movable piston in a cylinder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
YUP019100 2000-03-30
YUP-191/00 2000-03-30

Publications (2)

Publication Number Publication Date
WO2001073323A2 true WO2001073323A2 (en) 2001-10-04
WO2001073323A3 WO2001073323A3 (en) 2002-09-12

Family

ID=25548769

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/YU2001/000007 WO2001073323A2 (en) 2000-03-30 2001-03-19 Sealing gasket on a movable piston in a cylinder

Country Status (2)

Country Link
AU (1) AU4600001A (en)
WO (1) WO2001073323A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1719440A1 (en) * 2005-05-06 2006-11-08 RANCILIO MACCHINE PER CAFFE' S.p.A. Unit, piston and gasket for infusion machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656768A (en) * 1970-01-20 1972-04-18 William Josephian Piston and ring therefor
US5934685A (en) * 1997-07-14 1999-08-10 Danzer; Edward Leo Step lock piston ring insert
SE510108C2 (en) * 1997-12-09 1999-04-19 Daros Holding Ab Device at piston rings

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1719440A1 (en) * 2005-05-06 2006-11-08 RANCILIO MACCHINE PER CAFFE' S.p.A. Unit, piston and gasket for infusion machine

Also Published As

Publication number Publication date
AU4600001A (en) 2001-10-08
WO2001073323A3 (en) 2002-09-12

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