WO2011042201A1 - Connecting bolt for a plug coupling - Google Patents
Connecting bolt for a plug coupling Download PDFInfo
- Publication number
- WO2011042201A1 WO2011042201A1 PCT/EP2010/006173 EP2010006173W WO2011042201A1 WO 2011042201 A1 WO2011042201 A1 WO 2011042201A1 EP 2010006173 W EP2010006173 W EP 2010006173W WO 2011042201 A1 WO2011042201 A1 WO 2011042201A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- connecting bolt
- bore
- bolt according
- pressure
- ring seals
- Prior art date
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
- F16L37/025—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined with an inner elastic part pressed against an outer part by reason of its elasticity
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L17/00—Joints with packing adapted to sealing by fluid pressure
- F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
Definitions
- the invention relates to a connecting bolt for a plug-in coupling, in particular for the refueling of natural gas vehicles, for the pressure-tight connection to a bore, in particular to a tank or cylinder valve of a vehicle.
- a natural gas tank coupling of this type is known from the applicant WO 00/52378.
- a quick-connect or plug-in coupling wherein a sealing piston is displaced inwardly at the front end of the clutch on contact with the connecting bolt, then engage collets with a corresponding engagement profile in the correspondingly formed connection profile of the connecting bolt.
- the connecting bolt is standardized in this case according to standards for natural gas refueling (NGV), so that a large number of natural gas vehicles can be refueled at the corresponding natural gas filling stations with the plug-in coupling.
- NSV natural gas refueling
- connection bolt with two O-ring seals which are mounted at a distance from each other, is inserted into a suitable bore of a cylinder valve in the vehicle for refueling with 200 bar of natural gas.
- the connecting bolt has a medium connection with an internal thread, which ends in a further bore. Between the two O-ring seals at least one flow bore is mounted transversely to the central axis, which then the flow of the medium over the
- Sealing change (often such is required after about 50 refueling) can also create a dangerous situation, namely that in extreme cases, the connecting bolt is ejected.
- the invention has for its object to provide a connecting bolt, in particular, a safe refueling is feasible, the wear on the O-rings of the connecting bolt and at the same time the insertion of the plug-in coupling should be minimized.
- the two O-ring seals are not present when inserting the connecting bolt in the bore in diameter, but are approximately flush with the lateral surface.
- the gas is then supplied from the pressure source (eg, a natural gas filling station) and pushes the outer housing, which flows via a transverse bore in the piston-like inner housing in a pressure chamber, axially forward toward the bore.
- the seals are compressed (axially compressed) and enlarged in effective diameter to seal in the slightly larger selected hole of the plug-in coupling.
- the seals are held not only on the upcoming pressure in the bore, but also on the axial force of the pressure chamber in the outer housing in addition to the bore.
- the seals are for increased safety ever a support ring to a
- the filling line is vented and thereby released the pressure load in the axial direction through the piston-like pressure chamber again, so that the O-ring seals reset due to their elasticity.
- the axially movable sleeve is guided exactly between the O-ring seals on the bearing journal, in particular on a ground or polished lateral surface, so that the actuating forces are particularly low. In the middle region of the diameter and / or its wall thickness is reduced, so that there is a small contact area, which further increases the ease.
- Fig. 1 is an overview of a plug-in coupling according to the invention.
- FIG. 2 shows a half-section A-A through a connecting bolt according to FIG. 1.
- the illustrated connecting bolt 1 is used for pressure-tight connection to a hole 2 shown here on the left, which opens in particular in a vehicle gas tank.
- This right End of the plug-in coupling leads to a pressure source, in particular a gas station, so that medium, in particular natural gas can be supplied at high pressure.
- the medium flows through an inner housing 7 and a central passage (axial flow bore 3) in a bearing journal 5 screwed in, in order to pass over one or more
- two support rings 4 ' are provided in addition to the two O-ring seals 4. These are arranged on the side each of the sleeve 6 and the flow holes 6 'incorporated therein, more distant side, ie of
- the bearing pin 5 and the inner housing 7 is surrounded to form a pressure chamber 8 by an outer housing 9 with a handle groove 9 ', which is helpful for inserting the connecting bolt 1.
- the pressure chamber 8 is pressurized during the filling process via a transverse bore 5 ', so that the multiply sealed inner housing 7 with the outer housing 9 forms a piston-cylinder unit.
- the outer housing 9 is displaced relative to the inserted bearing pin 5 and thus the inner housing 7 here to the left, so that the two O-ring seals 4 are compressed in conjunction with the likewise axially movable sleeve 6 to produce the desired increase in diameter.
- third and fourth O-ring seals 4 may be provided in the manner of a double seal. Also, the pressure chamber 8 in
- Diameter so chosen to be larger with its effective ring piston area than the embodiment shown here with about twice the diameter as the O-ring diameter. Due to the bolted construction of the connecting bolt 1, in particular with the
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10776294A EP2486318A1 (en) | 2009-10-09 | 2010-10-09 | Connecting bolt for a plug coupling |
BR112012008259A BR112012008259A2 (en) | 2009-10-09 | 2010-10-09 | connecting pin for a snap coupling |
CN201080056004.1A CN102648372B (en) | 2009-10-09 | 2010-10-09 | Connecting bolt for a plug coupling |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202009013784.8 | 2009-10-09 | ||
DE200920013784 DE202009013784U1 (en) | 2009-10-09 | 2009-10-09 | Connecting bolt for a plug-in coupling |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011042201A1 true WO2011042201A1 (en) | 2011-04-14 |
Family
ID=43123216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/006173 WO2011042201A1 (en) | 2009-10-09 | 2010-10-09 | Connecting bolt for a plug coupling |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2486318A1 (en) |
CN (1) | CN102648372B (en) |
AR (1) | AR080277A1 (en) |
BR (1) | BR112012008259A2 (en) |
DE (1) | DE202009013784U1 (en) |
WO (1) | WO2011042201A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2694367A1 (en) * | 1992-07-29 | 1994-02-04 | Renault | Connecting device for hydraulic circuits - comprises male end with groove having watertight joint and socket, with gripping arrangement forcing joint to deform assuring watertight connection |
US5556139A (en) * | 1993-10-29 | 1996-09-17 | Snap-Tite, Inc. | Hydraulic coupling |
WO1999006751A1 (en) * | 1997-08-02 | 1999-02-11 | Erwin Weh | Quick-action coupling for plain end pipes |
WO2000052378A1 (en) | 1999-03-01 | 2000-09-08 | Erwin Weh | Actuation device, especially on a rapid-action reception coupling |
DE102007020344A1 (en) * | 2007-04-30 | 2008-11-06 | Zf Friedrichshafen Ag | Quick connector arrangement for testing pressure and vacuum of component, has pipe movable by actuating device in such manner that accommodating region is changeable with respect to axial length for deforming sealing element |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2802237Y (en) * | 2005-06-15 | 2006-08-02 | 闻长庆 | Adjustable internal expansion type quick clamping head |
-
2009
- 2009-10-09 DE DE200920013784 patent/DE202009013784U1/en not_active Expired - Lifetime
-
2010
- 2010-10-08 AR ARP100103667 patent/AR080277A1/en not_active Application Discontinuation
- 2010-10-09 EP EP10776294A patent/EP2486318A1/en not_active Withdrawn
- 2010-10-09 BR BR112012008259A patent/BR112012008259A2/en not_active IP Right Cessation
- 2010-10-09 CN CN201080056004.1A patent/CN102648372B/en not_active Expired - Fee Related
- 2010-10-09 WO PCT/EP2010/006173 patent/WO2011042201A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2694367A1 (en) * | 1992-07-29 | 1994-02-04 | Renault | Connecting device for hydraulic circuits - comprises male end with groove having watertight joint and socket, with gripping arrangement forcing joint to deform assuring watertight connection |
US5556139A (en) * | 1993-10-29 | 1996-09-17 | Snap-Tite, Inc. | Hydraulic coupling |
WO1999006751A1 (en) * | 1997-08-02 | 1999-02-11 | Erwin Weh | Quick-action coupling for plain end pipes |
WO2000052378A1 (en) | 1999-03-01 | 2000-09-08 | Erwin Weh | Actuation device, especially on a rapid-action reception coupling |
DE102007020344A1 (en) * | 2007-04-30 | 2008-11-06 | Zf Friedrichshafen Ag | Quick connector arrangement for testing pressure and vacuum of component, has pipe movable by actuating device in such manner that accommodating region is changeable with respect to axial length for deforming sealing element |
Also Published As
Publication number | Publication date |
---|---|
CN102648372B (en) | 2014-10-22 |
EP2486318A1 (en) | 2012-08-15 |
AR080277A1 (en) | 2012-03-28 |
CN102648372A (en) | 2012-08-22 |
BR112012008259A2 (en) | 2016-03-15 |
DE202009013784U1 (en) | 2010-11-18 |
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