IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0490139
(2002-09-12)
|
등록번호 |
US-7323037
(2008-01-29)
|
우선권정보 |
FR-01 12109(2001-09-19) |
국제출원번호 |
PCT/FR02/003115
(2002-09-12)
|
§371/§102 date |
20040823
(20040823)
|
국제공개번호 |
WO03/035217
(2003-05-01)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Delphi Technologies, Inc.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
3 |
초록
▼
The device (6) includes a sealed casing (10) provided, in its lower part, with a bowl (22) for collection of a residual liquid, and an assembly (30) for purging the residual liquid which comprises means for evacuation of the liquid collected in the bowl and means for connecting the casing to the ope
The device (6) includes a sealed casing (10) provided, in its lower part, with a bowl (22) for collection of a residual liquid, and an assembly (30) for purging the residual liquid which comprises means for evacuation of the liquid collected in the bowl and means for connecting the casing to the open air. The means for evacuation of the liquid include an orifice (36) formed in the wall of the casing substantially at the level of the bottom of the bowl (22). The means for connection to the open air include an orifice (34) formed in the wall of the casing (10) substantially opposite the orifice (36) for evacuation of the liquid. A single obturator (40) is displaceable between a sealing position in which, on the one hand, its upper part forms a tight plug (42) for the orifice for entry of air (34) and, on the other, its lower part forms a tight plug (48) for the orifice for evacuation of the liquid (36), and a position for purging the liquid in which, on the one hand, its upper part is disengaged from the orifice for entry of air to allow connection of the casing to the open air and, on the other, its lower part is disengaged from the orifice for evacuation of the liquid to allow gravity purging of the casing.
대표청구항
▼
The invention claimed is: 1. A filtration device with improved purge assembly, of the type including a filtration unit, the device comprising: a sealed casing internally defining a filtration chamber provided with filtration means and, in its lower part, a bowl for collection of a residual liquid f
The invention claimed is: 1. A filtration device with improved purge assembly, of the type including a filtration unit, the device comprising: a sealed casing internally defining a filtration chamber provided with filtration means and, in its lower part, a bowl for collection of a residual liquid from the filtration means, and an assembly for purging the residual liquid which comprises means for evacuation of the liquid collected in the bowl and means for connection of the casing to the open air, wherein the means for evacuation of the liquid comprise an orifice formed in the wall of the casing substantially at the level of the bottom of the bowl for collection of the liquid, wherein the means for connection to the open air comprises an orifice formed in the wall of the casing substantially opposite the orifice for evacuation of the liquid, and wherein the means for connection to the open air and the means for evacuation of the liquid comprise: a single obturator displaceable between a sealing position in which, on the one hand, its upper part forms a tight plug for the orifice for connection to the open air and, on the other hand, its lower part forms a tight plug for the orifice for evacuation of the liquid, and a gravity purge position, in which, on the one hand, its upper part is disengaged from the orifice for connection to the open air and, on the other hand, its lower part is disengaged from the orifice for evacuation of the liquid allowing the liquid to be evacuated under the influence of gravity. 2. A device as described in claim 1, wherein the orifice for connection to the open air is defined by a substantially cylindrical sealing surface, and the upper part of the obturator includes an O-ring seal co-operating with the said sealing surface when the obturator is in the sealing position. 3. A device as described in claim 1, wherein the orifice for evacuation of the liquid is defined by a substantially cylindrical sealing surface, and the lower part of the obturator includes an O-ring seal co-operating with the said sealing surface when the obturator is in the sealing position. 4. A device as described in claim 2, wherein the sealing surface of the orifice for entry of air is more extended longitudinally than that of the orifice for evacuation of the liquid. 5. A device as described in claim 1, wherein the orifice for connection to the open air is threaded, and the upper part of the obturator is threaded to co-operate with the orifice for connection with the open air when the obturator is in the sealing position. 6. A device as described in claim 5, wherein the obturator includes, at one of its ends, a head for screwing-unscrewing the obturator. 7. A device as described in claim 6, wherein the obturator comprises, at its end opposite that including said head, a substantially flat surface for abutment against a complementary surface of the casing. 8. A device as described in claim 1, wherein the obturator is in the form of a rod comprising a standard part in the form of a solid cross-piece of smaller cross-section than that of the remainder of the rod. 9. A device as described in claim 1, wherein the obturator is in the form of a rod comprising a standard part, and the standard part is formed of a flexible material. 10. A device as described in claim 1, wherein the obturator is in the form of a rod comprising a standard part, and the standard part comprises a plurality of components assembled to form a structure of flexible dimension. 11. A device as described in claim 1, wherein the means for evacuation of the liquid comprise an outflow pipe for the liquid connected to the orifice for evacuation of the liquid and rigidly attached to the casing. 12. A device as described in claim 1, wherein the filtration unit comprises means for filtering gas-oil, the residual liquid being water. 13. A device as described in claim 12, wherein the device further comprises an electrical heating unit that comprises: a casing internally defining a chamber for heating the gas-oil to be filtered, and means for direct and tight connection of the chambers of the heating and filtration units; and wherein the device further comprises means for assembly of the casings of the heating and filtration units. 14. A device as described in claim 13, wherein the connection means comprise a sleeve rigidly attached to the casing of one of the heating and filtration units, and an orifice for reception of the said sleeve formed in the wall of the casing of the other of the said units. 15. A device as described in claim 14, wherein the sleeve and the casing to which it is rigidly attached form a single piece. 16. A device as described in claim 14, wherein the connection means comprise sealing means. 17. A device as described in claim 13, wherein the assembly means comprise means for detachably fixing the casing of one of the heating and filtration units to the casing of the other of the units, and wherein the casing at the filtration unit presents externally a surface of dimensions that are substantially complementary to those of a surface presented externally by the casing of the heating unit. 18. A device as described in claim 17, wherein the means for detachably fixing comprise a sliding connection with a slideway between the heating unit and the filtration unit, and means for retaining one of the said units in translation relative to the other. 19. A device as described in claim 18, wherein the connection with a slideway provides an inclined ramp for sliding of one of the said units on the other. 20. A device as described in claim 18, wherein the means for retaining in translation comprise a wedge rigidly attached to the casing of one of the said units, and a tab rigidly attached to the casing of the other of the said units, arranged transversally to the direction of translation and suitable to retain the wedge in translation when the casings of the said units are fixed one to the other. 21. A device as described in claim 20, wherein on the face of the wedge bearing on the tab when the casings of the said units are fixed one to the other, is arranged at least one retaining notch. 22. A device as described in claim 20, wherein the wedge comprises an inclined face for pushing back the tab at the movement of fixing of the heating unit on the filtration unit. 23. A device as described in any claim 20, wherein the tab (148) comprises a sectile part. 24. A device as described in claim 17, wherein the means for detachably fixing comprise means for retention in a direction transversal to the direction of translation of one of the said units relative to the other. 25. A device as described in claim 24, wherein the transversal retention means comprise two ramps for transversely offsetting one of the said units relative to the other, the respective directions of transversal offset of the said two ramps being opposite. 26. A gas-oil supply line, in particular for a diesel engine, of the low pressure type and comprising a tank, a filtration device and a gas-oil pump, wherein the filtration device is contracted in accordance with claim 1.
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