EP1180206A1 - Closure cap for a radiator of a motor vehicle - Google Patents
Closure cap for a radiator of a motor vehicleInfo
- Publication number
- EP1180206A1 EP1180206A1 EP00938667A EP00938667A EP1180206A1 EP 1180206 A1 EP1180206 A1 EP 1180206A1 EP 00938667 A EP00938667 A EP 00938667A EP 00938667 A EP00938667 A EP 00938667A EP 1180206 A1 EP1180206 A1 EP 1180206A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- handle
- coupling bolt
- cap according
- pressure
- connection device
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/0204—Filling
- F01P11/0209—Closure caps
- F01P11/0247—Safety; Locking against opening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/0204—Filling
- F01P11/0209—Closure caps
- F01P11/0247—Safety; Locking against opening
- F01P2011/0266—Safety; Locking against opening activated by pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S220/00—Receptacles
- Y10S220/32—Radiator cap
Definitions
- the present invention relates to a closure cover for a stationary neck of a container, in particular a motor vehicle radiator, according to the preamble of claim 1.
- the object of the present invention is therefore to provide a closure cover of the type mentioned at the outset, which can be screwed on and off in a simpler manner and which can be used in a variety of ways.
- the features specified in claim 1 are provided in a closure lid of the type mentioned.
- the measures according to the invention ensure that the screwing on and unscrewing of the closure cap can no longer be achieved by full revolutions but by moving back and forth by a few degrees. This is easier to handle and also has the advantage that it is also possible to apply and remove closure caps which can be used when using operation-controlled valve arrangements without the mechanical or electrical connecting line having to be removed beforehand and then attached again.
- the rotary connection device can be arranged axially or radially.
- a preferred structural design of the rotary connection device results from the features of one or more of claims 4, 5 and 7.
- the direction of rotation-dependent adjustment of the coupling bolt is particularly simple if the features are provided according to claim 6.
- a further design and handling simplification is given if the features according to claim 8 are realized.
- the anti-rotation device is integrated in the ratchet-type rotary connection device.
- Cap is a vacuum or engine side
- FIGS. 3 A and 3 B in a perspective view or a partially sectioned side view, a closure cover for motor vehicle radiators according to a second exemplary embodiment of the present invention
- FIGS. 4 and 5 in a schematic, longitudinally sectioned illustration the closure cover according to the second exemplary embodiment in a first and in a second active position
- FIGS. 6 and 7 show a representation corresponding to FIGS. 4 and 5, but of a closure cover according to a third exemplary embodiment of the present invention
- Figures 8 A and 8 B a section along the line VIII A ⁇
- the closure cover 10, 110, 210 and 310 shown in the drawing according to several exemplary embodiments has a pressure relief valve arrangement 11 and is controlled in such a way that the opening pressure of the
- Pressure relief valve arrangement 11 can be set in two stages by means of a drive 15, 115, 215 or 315, namely to an opening pressure which takes account of the motor vehicle radiator pressure during normal operation and to an opening pressure which is the higher motor vehicle radiator pressure which arises when the motor vehicle engine is switched off due to the accumulated heat build-up , corresponds.
- the closure cap 10 has an outer part 12 with a handle 13 and an external thread part 17 for screwing the cap 10 on and off from the opening of a neck of a motor vehicle radiator or other container, not shown, and an inner part 14, via an O-ring 16 can be used sealingly in the neck of the motor vehicle radiator or another container and is held on the outer part 12.
- the handle 13 is connected to the external thread part 17 so that it can be locked and rotated, wherein an anti-twist device, preferably a temperature-dependent one, can be provided.
- the cylindrical inner part 14 of the closure cover 10 is equipped with the pressure relief valve arrangement 11. It has a bottom 18 and above the bottom an inwardly projecting ring rim 19, the upper area of which is provided with a sealing seat 21 for a valve body 22 of the pressure relief valve arrangement 11.
- the valve body 22 has a central, hat-shaped part 23, on the peripheral flange 24 of which a sealing washer 26 rests.
- the hat-shaped part 23 is supported on the base 18 via a spring support 27.
- the sealing disk 26 is acted upon by a compression spring 28 or pressure relief valve spring, which is supported at the other end on a sleeve 29, which is guided axially up and down in a guide cylinder 31 having an axial stop 34 for the sleeve 29.
- the guide cylinder 31 is attached to the end of the inner part 14 facing away from the valve body 22. At the bottom, openings 32 are provided in the motor vehicle cooler or container. In addition, the inner part 14 has openings 33 on the outer circumference side and opposite the smaller-diameter guide cylinder 31, which openings communicate with the outside atmosphere stand. When the valve body 22 is lifted off the sealing seat 21, there is a flow connection between the interior of the cooler or container and the outside air.
- a pressure piece 36 is received in the sleeve 29 in a movement-locking manner, which at the other end projects into a chamber 39 in the outer part 12 and has a roller or roller receptacle 37.
- a roller or roller 38 is freely rotatably mounted or inserted in this receptacle 37 of the pressure piece 36.
- the roller 38 lies at least partially within the horizontal cylindrical chamber 39, which at its open end can be closed in a pressure-tight manner by means of an easily removable coupling piece 61, to which a hose 62 leading, for example, to the motor is fastened.
- a piston 46 is guided to reciprocate in the direction of the double arrow A and thus perpendicular to the movement of the pressure piece 36 according to the double arrow B.
- a switching spring 49 is located between the coupling piece 61 and the opposite end of the piston 46
- the end 63 of the piston 46 facing away from the coupling piece 61 is guided in a blind hole 64 at the other end of the handle 13.
- the smaller-diameter end of the piston 46 is surrounded by a compression spring 65, which is supported at the other end at the bottom of the blind hole 64.
- the piston 46 has a run-up slope 48 facing the pressure piece 36, against which the roller 38 of the pressure piece 36 bears. Opposite the run-up slope 48 is the piston 46 provided with two recesses 51, in each of which a roller or roller 50 is freely rotatably inserted, which rollers 50 are supported in a rolling manner on the inner wall of the chamber 39.
- the operation of the control of the pressure relief valve assembly 11 of the closure cover 10 is as follows: If the coupling piece 61 with the hose 62 representing a vacuum line to the engine compartment is locked into the cylinder chamber 39 of the handle 13 of the closure cover 10, the switching spring 49 is mechanically pretensioned so that it starts from the position of Figure 1 pushes the piston 46 inwards. Characterized the thrust piece 36 is moved in the direction of arrow Bl (downward) over the ramp 48 and the roller 38, so that the pressure relief valve spring 28 is biased. In this way, the valve body 22 receives an increased opening pressure.
- the pressure relief valve spring 28 is in turn tensioned, so that the opening pressure for the valve body 22 is increased to, for example, 2.0 bar.
- the valve body 22 can withstand a higher cooler or container internal pressure resulting from the heat build-up due to the switched-off engine.
- the switching spring 49 relaxes completely, so that the pressure relief valve spring 28 switches over to normal operating opening pressure of, for example, 1.4 bar by its own force in the manner described above. If after the screwing on of the sealing cap 10 is forgotten to couple the coupling piece 61 to the sealing cap 10, the lower normal operating opening pressure is automatically maintained so that the motor vehicle can still be used.
- a ratchet-like twisting device or rotary connection device 80 between the outer part 12 and the inner part 14 having the outer thread part 17, to which the pressure relief valve arrangement 11 is connected, has a coupling part in the form of a coupling bolt 82 Movable coupling bolt 82 opposite a ring of axial bores 84 is provided in an upper wall 83 of the external thread part 17, in each of which a bore 84 for the rotational coupling of the handle 13 and the external thread part 17, the inner free end 90 of the coupling bolt 82 optionally engages. In this position, the cap 10 can be removed from the radiator neck.
- the coupling bolt 82 is guided up and down on a bearing sleeve 88 held in the bore 86 of the handle 13 and is acted upon by a compression spring 85 towards the bore ring 83 on its movement-fixed collar.
- the coupling bolt 82 which has an inclined surface 89 at its end 90 which dips into the bore 84 in a circumferential region over approximately 180 °, can be rotated 180 ° to the left or right via a head slot 87 with a screwdriver according to FIG. 2B.
- the pressure piece 136 of the compression spring 128 is acted on by an adjusting spring 154 which faces away one end on the pressure piece 136 and the other on the inner wall of the handle 113 is centered.
- the pressure piece 136 is axially movably supported in the middle of a membrane 155, the peripheral edge of the membrane 155 being clamped between the handle 113 and the external thread part 117.
- this pressure piece 136 has a larger surface when viewed in plan view and projects substantially into the chamber 139, which is connected to the vacuum line to the engine.
- the actuating spring 154 which has a greater force than the compression spring 128, prestresses the latter, so that the valve body 122 has an opening pressure of approximately Withstands 2.0 bar (Fig. 5).
- a negative pressure is established in the chamber 139 and thus on the pressure piece 136 via the vacuum line, which has the consequence that the pressure piece 136 is sucked into the vacuum chamber 139 up to a stop shown in FIG.
- the actuating spring 154 is tensioned and the compression spring 128 is relaxed, so that the valve body 122 can only withstand an opening pressure of approximately 1.4 bar.
- This position lasts as long as the engine is running and creates negative pressure.
- the engine is switched off, it is reset to the position shown in FIG. 5.
- the membrane 155 thereby seals between the Vacuum chamber 139 and the remaining cap space or the inside of the cooler container and also an elastic movement connection or arrangement of the pressure piece 136 within the cap 110.
- the handle 113 is provided with a fixed pipe section 163 for a hose and not with a coupling piece. In this exemplary embodiment, there remains a connection between the handle 113 and the hose (not shown) for screwing the screw cap 110 onto or off the coolant tank neck.
- the ratchet-like rotary connection device 180 is provided between the outer part 112 and the externally threaded part 117.
- this ratchet connection 180 has a coupling bolt 182 which, when spring-loaded, penetrates into one of many ring-shaped bores 184 in a peripheral edge 1183 of the external thread part 117.
- the coupling pin 182 lies within an axial bore 186 provided with an undercut, the compression spring 185 being provided within the undercut.
- the bolt 182 is non-rotatably connected to a lever 151 (FIG.
- the coupling bolt 182 is rotated back and forth is rotatable.
- the inner end 190 of the coupling bolt 182 is provided with an inclined surface 189 which is arranged to the left or right in accordance with the position of the lever 191 according to FIG. 3B.
- the closure cap 110 (like the closure cap 10) can be screwed onto or unscrewed from the container neck by turning back and forth, depending on the position of the lever 191.
- the lever 191 corresponding to the position of the lever 191 and thus the position of the inclined surface 189, there is a rotationally fixed connection in one direction between the handle 113 and the external thread part 117, while in the other direction a free-running ratchet effect is achieved in that the inclined surface 189 and the compression spring 185 of the coupling bolts 182 can come out of the bore 184 against the action of the compression spring.
- FIGS. 6 to 8 show a closure cover 210, the function of which essentially corresponds to the closure cover 110 according to FIGS. 3 to 5.
- the main difference lies in the design of the ratchet-type rotary connection device 280, which in the exemplary embodiment according to FIGS. 6 to 8 acts radially on a peripheral region.
- the coupling bolt 282 is arranged in a radially outwardly closed bore 286 of the handle 213 in such a way that it is directed towards the rear is preloaded on the inside, so that its end 290 provided with an inclined surface 289 always engages in a bore 284 of a ring or ring 283 (FIG.
- the coupling bolt 282 is provided with a grip strip 293, by means of which the coupling bolt 282 can be rotated by 180 ° in each case into the corresponding coupling position, that is to say for unscrewing or screwing on.
- the ratchet-type rotary connection device 80, 180 and 280 shown in the exemplary embodiments according to FIGS. 1 and 2, 3 to 5 and 6 to 8 is combined in accordance with one or more further exemplary embodiments not shown in the drawing with a pressure or temperature-dependent controlled anti-rotation device.
- a pressure or temperature-dependent controlled anti-rotation device With such an anti-rotation device it is achieved that a rotationally fixed connection between the handle 13, 113 or 213 and the external thread part 17, 117 or 217 is only present when the temperature in the coolant tank is so low that no scalding or other danger when unscrewing the Closure cover exists.
- the ratchet-type rotary connection device 80, 180 and / or 280 is controlled in a temperature-dependent manner in such a way that the coupling bolt 82, 182 or 282 is connected at one end by a temperature-dependent memory spring and at the other end A return spring is acted on, which causes the coupling bolt to be pressed out or released from the respective locking bore 84, 184 or 284 at a predetermined excessively high temperature in the coolant container.
- a temperature-dependent rotation lock is that the bore ring 83, 183 or 283 is controlled in the manner described for the coupling bolt so that it can be engaged or disengaged.
- FIG. 9 A further embodiment of a closure cover 310 is shown in FIG. 9.
- the drive 315 is aligned, that is to say arranged in an axially concentric alignment with the compression spring 328, and is guided axially in the end face of the handle 313 of the closure cover 310.
- the drive 315 which expands in the axial direction, is electrically controlled.
- electrical contacts 357 are led to the outside.
- the electrically controlled drive 315 is provided by an expansion element (not shown in detail) with a PTC heating element as the heat source.
- the drive 315 is a Sorption actuator, preferably formed by a metal hydride actuator.
- a PTC heating element is also used in this drive, for example, with the aid of which the metal hydride in the actuator is electrically heated to a defined temperature.
- a pressure is set in the actuator in accordance with the temperature, so that the drive 315 expands and acts on the pressure piece 336 for prestressing the compression spring 328. If the electrical heating is set, the metal hydride in the actuator cools down by heat exchange with its surroundings, so that the pressure in the actuator drops, which results in a return movement and thus relaxation of the compression spring 328.
- the effects on the overpressure arrangement 11 result in the manner described above.
- a corresponding mode of operation also results in the above-described expansion element as an electrically controlled drive, in which, for example, a wax that is expandable under heat is used.
- the actual drive element is surrounded by a bellows 371.
- a temperature-dependent rotation lock 375 is used in connection with the electrically controlled drive 315.
- the anti-rotation device 375 is formed by a bracket 376, which rests in the center on the drive element 315 or its bellows 371 and in the initial state in a small amount Distance from the inner wall of the handle 313.
- the bracket 376 which extends radially within the chamber 339, has two axially bent fingers 377 at both ends, which penetrate into axial bores 378 of the externally threaded part 117.
- This initial state is shown in FIG. 9.
- the bracket 376 is loaded between its center overlapping the bellows 371 and the fingers 377 at the ends by a compression spring 379. In the state shown, there is a rotary connection between the handle 313 and the external thread part 317, so that the closure cover 310 can be unscrewed or screwed on.
- the drive 315 will expand axially somewhat, which causes the drive 315 to move upward in the direction of the arrow B2 due to the still too great force of the compression spring 328 and to raise the locking bracket 376 until it bears against the inner wall the handle 313 lays. In this state, the locking bracket 376 is lifted out of the holes 378, so that the rotationally fixed connection between the handle 313 and the external thread part 317 is canceled. If the engine is switched off, the temperature in the drive element 315 continues to increase due to the selected electrical coupling, which causes it to expand further in the axial direction.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Closures For Containers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19923774A DE19923774A1 (en) | 1999-05-22 | 1999-05-22 | Lid for car cooler support has outer section with handle and section with external thread held together by ratchet connector |
DE19923774 | 1999-05-22 | ||
PCT/EP2000/004630 WO2000071871A1 (en) | 1999-05-22 | 2000-05-22 | Closure cap for a radiator of a motor vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1180206A1 true EP1180206A1 (en) | 2002-02-20 |
EP1180206B1 EP1180206B1 (en) | 2004-12-22 |
Family
ID=7909032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00938667A Expired - Lifetime EP1180206B1 (en) | 1999-05-22 | 2000-05-22 | Closure cap for a radiator of a motor vehicle |
Country Status (4)
Country | Link |
---|---|
US (1) | US6742667B1 (en) |
EP (1) | EP1180206B1 (en) |
DE (2) | DE19923774A1 (en) |
WO (1) | WO2000071871A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20108735U1 (en) * | 2001-05-23 | 2002-10-02 | Reutter, Heinrich, 71336 Waiblingen | Sealing cap for radiator coolers |
DE10132661A1 (en) * | 2001-07-05 | 2003-01-16 | Heinrich Reutter | Sealing cover with unscrew protection |
DE20211232U1 (en) * | 2002-07-18 | 2003-11-20 | Reutter, Heinrich, 71336 Waiblingen | cap |
WO2016094410A1 (en) * | 2014-12-08 | 2016-06-16 | Toledo Molding & Die, Inc. | Dual chamber coolant reservoir |
CN113715607B (en) * | 2021-07-23 | 2023-07-04 | 东风汽车集团股份有限公司 | Degassing chamber assembly and vehicle with same |
CN114408376B (en) * | 2022-03-29 | 2022-05-31 | 烟台恒邦化工助剂有限公司 | Recycling and storing device for synthesizing butanol from heimiac acid in production of butylamine heimian |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7023321U (en) * | 1900-01-01 | Blau Kg | Two-part screw cap with mutually engaging ratchet-like effective coupling parts. Aττni: Blau KG factory for motor vehicle parts, 4018 Langenfeld | |
US3338444A (en) * | 1966-07-11 | 1967-08-29 | Evert D Velt | Safety bottle top |
US3615036A (en) * | 1968-10-17 | 1971-10-26 | Int Harvester Co | Locking filler cap |
DE6901019U (en) * | 1969-01-10 | 1969-05-22 | Walter Finkeldei Werkzeugfabri | TOOL FOR THE SCREW OPERATING OF BOLTS AND NUTS, SO-CALLED RATCHET. |
US3526332A (en) * | 1969-03-24 | 1970-09-01 | William H Adelberger | Locking tamper-resistant vial |
US4132091A (en) * | 1977-09-23 | 1979-01-02 | Orion Industries | Self locking fuel cap |
US4253690A (en) | 1978-12-13 | 1981-03-03 | Nathan Hollander | Safety knob |
US4468058A (en) * | 1981-04-17 | 1984-08-28 | Kuhlman Corporation | Locking fuel cap |
JPS60179654U (en) * | 1984-05-07 | 1985-11-29 | 豊田合成株式会社 | cap with valve |
DE4107525C1 (en) * | 1991-03-08 | 1992-05-27 | Blau Kg Fabrik Fuer Kraftfahrzeugteile, 4018 Langenfeld, De | |
US5183173A (en) * | 1991-07-29 | 1993-02-02 | Epicor Industries, Inc. | Auto venting fuel cap |
US5178047A (en) * | 1991-08-08 | 1993-01-12 | Easco Hand Tools, Inc. | Reversible ratchet wrench |
US5437212A (en) * | 1993-12-02 | 1995-08-01 | Snap-On Incorporated | Ratcheting screwdriver |
EP0760789B1 (en) * | 1994-06-01 | 1998-08-26 | REUTTER, Heinrich | Closure cap which can be fixed onto a container neck |
DE29610724U1 (en) * | 1995-08-25 | 1997-02-06 | Reutter, Heinrich, 71336 Waiblingen | Closure cover that can be attached to a container neck |
US5570804A (en) | 1995-10-31 | 1996-11-05 | Chang; Chang-Yao | Radiator cover |
CA2288078A1 (en) * | 1997-04-21 | 1998-10-29 | Stant Manufacturing Inc. | Lockable fuel cap |
DE19732885B4 (en) * | 1997-07-30 | 2008-01-24 | Blau Gmbh | Cover with safety lock for a container |
US6044730A (en) * | 1997-10-08 | 2000-04-04 | Joda Enterprises, Inc. | Ratchet wrench |
-
1999
- 1999-05-22 DE DE19923774A patent/DE19923774A1/en not_active Withdrawn
-
2000
- 2000-05-22 US US09/926,536 patent/US6742667B1/en not_active Expired - Fee Related
- 2000-05-22 WO PCT/EP2000/004630 patent/WO2000071871A1/en active IP Right Grant
- 2000-05-22 DE DE50009038T patent/DE50009038D1/en not_active Expired - Fee Related
- 2000-05-22 EP EP00938667A patent/EP1180206B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0071871A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2000071871A1 (en) | 2000-11-30 |
US6742667B1 (en) | 2004-06-01 |
DE19923774A1 (en) | 2000-11-23 |
DE50009038D1 (en) | 2005-01-27 |
EP1180206B1 (en) | 2004-12-22 |
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