EP1999344A2 - Dispositif de separation de particules fluides dans un ecoulement de gaz qui sort d'un carter de vilebrequin - Google Patents

Dispositif de separation de particules fluides dans un ecoulement de gaz qui sort d'un carter de vilebrequin

Info

Publication number: EP1999344A2
Authority: EP; European Patent Office
Prior art keywords: piston; cylinder; flow; orifice; gas flow
Prior art date: 2006-03-24
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

Application number

EP07726982A

Other languages

German (de)

English (en)

Other versions

EP1999344B1 (fr

Inventor

Torsten Hilpert

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Mann and Hummel GmbH

Original Assignee

Mann and Hummel GmbH

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.)

2006-03-24

Filing date

2007-03-16

Publication date

2008-12-10

2007-03-16 Application filed by Mann and Hummel GmbH filed Critical Mann and Hummel GmbH

2008-12-10 Publication of EP1999344A2 publication Critical patent/EP1999344A2/fr

2011-08-10 Application granted granted Critical

2011-08-10 Publication of EP1999344B1 publication Critical patent/EP1999344B1/fr

Status Not-in-force legal-status Critical Current

2027-03-16 Anticipated expiration legal-status Critical

Links

239000012530 fluid Substances 0.000 title claims abstract description 20
239000002245 particle Substances 0.000 title claims abstract description 6
238000007599 discharging Methods 0.000 title 1
JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 claims abstract description 7
238000000926 separation method Methods 0.000 claims description 15
230000001419 dependent effect Effects 0.000 claims description 2
241000937413 Axia Species 0.000 claims 1
238000002485 combustion reaction Methods 0.000 abstract description 2
238000009826 distribution Methods 0.000 abstract description 2
239000007789 gas Substances 0.000 description 27
230000001965 increasing effect Effects 0.000 description 4
238000006073 displacement reaction Methods 0.000 description 3
230000004888 barrier function Effects 0.000 description 1
230000006835 compression Effects 0.000 description 1
238000007906 compression Methods 0.000 description 1
230000001939 inductive effect Effects 0.000 description 1
238000000034 method Methods 0.000 description 1
239000002991 molded plastic Substances 0.000 description 1
238000009827 uniform distribution Methods 0.000 description 1
238000011144 upstream manufacturing Methods 0.000 description 1
238000009423 ventilation Methods 0.000 description 1

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C11/00—Accessories, e.g. safety or control devices, not otherwise provided for, e.g. regulators, valves in inlet or overflow ducting
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M2013/0038—Layout of crankcase breathing systems
- F01M2013/005—Layout of crankcase breathing systems having one or more deoilers
- F01M2013/0061—Layout of crankcase breathing systems having one or more deoilers having a plurality of deoilers
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0422—Separating oil and gas with a centrifuge device
- F01M2013/0427—Separating oil and gas with a centrifuge device the centrifuge device having no rotating part, e.g. cyclone

Definitions

the invention relates to a device for separating fluid particles from a gas flow leaving a crankcase with a valve element for distributing the gas flow in proportion to the volume flow to at least two fluid separation devices.
the object of the invention is to improve a known device for the separation of fluid particles from a gas stream, which escapes in particular from a crankcase, so that a more stable, low-vibration Behhal ⁇ th is achieved and also less space is claimed.
the piston-cylinder arrangement in which a loose clearance between the piston and cylinder is provided from the outset, a very compact design is achieved, which is also produced in a simple and cost-effective manner from injection-molded plastic parts.
the geometrical tolerances always to be included in injection-molded parts are accepted from the outset and advantageously taken into account by deliberately inducing leak flows along the piston in order to supply a gas flow to the downstream end of the valve element in the base-load operation lead and from there to supply a Fluidabscheide worn.
the leakage flow can progressively larger who be increased ⁇ Denden annular gap around the piston by one along the piston travel. This can be limited by increasing the volume flow of the associated pressure loss through the piston.
the leakage currents can continue to be influenced by the fact that other regions of the axial cross-section ⁇ surface of the piston be made gas permeable, at ⁇ example by axial bores or grooves in the cylindrical piston wall.
the piston of the device according to the invention is not moved axially.
the volume flow increases the to be de-oiled gases on, however, so the back pressure increases on the piston, which forms a flow obstacle on the raw gas side end and moves it against the spring force, whereby the radial outlet opening is released in the cylinder wall, so that the raw gas di ⁇ rectly can flow in there.
the connection of the second Fluidabscheide drove not abruptly, but that the diverted Volu ⁇ menstrom increases continuously because the piston, the orifice only a gap wide releases and then with increasing displacement more and more opening area is available.
the valve element according to the invention acts quasi as a switch to the second, more efficient separation device, which is designed in particular as a per se known cyclone for separating oil from Kurgepatusentlriosungsgasen.
provision may still be made to provide one or more further fluid separation devices and to supply them via additional outlet openings arranged downstream with respect to the first outlet opening.
additional outlet openings arranged downstream with respect to the first outlet opening.
a small gas stream passes by the piston to the first fluid separation device.
the second fluid separation device In a second operating state with increased volume flow, the second fluid separation device is released.
the third fluid separation device can also be released.
the advantage of the system according to the invention lies in the fact that the volume flows are mutually be ⁇ thing and only a common switching element, the piston in the cylinder, divided.
a switching mög ⁇ Lich as stated above, namely, when the piston serves as a flow obstacle and the size of the first Mün ⁇ opening, including the second Fluidabscheide founded be interpreted in that, after switching, no appreciable gas flow more passes through the piston and is introduced into the first fluid separation device.
a uniform distribution can also be provided, so that when the second fluid separation device is enabled, the two fluid separation devices each receive an approximately equal gas flow.
the piston can be guided axially on a guide element, for example, on a centrally fixed in the cylinder. ended guide rod.
Figure 1 is a valve element in base load operation.
Figure 2 is a valve element in the middle load operation.
Figure 3 is a valve element in full load operation.
Figure 4 shows a further variant of a valve element.
cylinder 11 which is open at a raw gas side 11.1 and is closed in the illustrated embodiment at its downstream end.
the cylinder 11 has in its cylinder jacket a plurality of axially spaced mouth openings 15, 16, 19, are guided by the respective branch lines to cyclones 21, 22, 23 as Fluidabscheidetechnisch.
a piston 12 is secondarily displaced.
the piston 12 has a central bore 14, in which a guide rod 17 which is fixedly connected to the cylinder 11, is guided.
a compression spring 18 is arranged, which is supported on the bottom 11.2 of the cylinder 11.
the piston also has a plurality of axial bores 13 in order to ermögli ⁇ chen provided for the base load operation gas flow.
FIG. 4 shows a further variant of a valve element 100.
This has a housing 101, in which three cyclones 102, 103, 104 are arranged, and a pressure relief valve 105.
the housing has a Rohgasein ⁇ occurs 106, from which a cylindrical portion 107 extends.
a piston 108 is arranged longitudinally displaceable.
the piston is leads, on a laterally arranged linear guide 109, which is constructed for example in the manner of a dovetail guide.
the piston is supported by a spring 110.
the piston returns the cyclone inlet channel 111 of the cyclone 104 freely, so that the gas can flow ungereingte a ⁇ in this cyclone and is de-oiled there.
the cylindrical Be rich ⁇ 107 is provided with a so-called tulip-shaped section 112 which extends along the reciprocating displacement path. If the piston in the early timely rest position - shown by the dashed line
This bulge has the advantage that a targeted leakage current, which is guided past the piston 108, can be adjusted.
the piston will move to the left at a higher dynamic pressure and also release the cyclone 103.
the pressure relief valve 105 ensures that at an extremely high raw gas pressure, a certain proportion can flow through this pressure relief valve.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Cyclones (AREA)
Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

EP07726982A 2006-03-24 2007-03-16 Dispositif de separation de particules fluides dans un ecoulement de gaz qui sort d'un carter de vilebrequin Not-in-force EP1999344B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE202006004897U DE202006004897U1 (de)	2006-03-24	2006-03-24	Vorrichtung zur Abscheidung von Fluidpartikeln aus einem aus einem Kurbelgehäuse austretenden Gasstrom
PCT/EP2007/052502 WO2007110332A2 (fr)	2006-03-24	2007-03-16	Dispositif de séparation de particules fluides dans un écoulement de gaz qui sort d'un carter de vilebrequin

Publications (2)

Publication Number	Publication Date
EP1999344A2 true EP1999344A2 (fr)	2008-12-10
EP1999344B1 EP1999344B1 (fr)	2011-08-10

Family

ID=38438714

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP07726982A Not-in-force EP1999344B1 (fr)	2006-03-24	2007-03-16	Dispositif de separation de particules fluides dans un ecoulement de gaz qui sort d'un carter de vilebrequin

Country Status (5)

Country	Link
US (1)	US8230845B2 (fr)
EP (1)	EP1999344B1 (fr)
AT (1)	ATE519927T1 (fr)
DE (1)	DE202006004897U1 (fr)
WO (1)	WO2007110332A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102007058059B4 (de) *	2007-01-26	2015-06-11	Dichtungstechnik G. Bruss Gmbh & Co. Kg	Ölabscheideranordnung sowie Zylinderkopfhaube für einen Verbrennungsmotor
DE102007049725A1 (de) *	2007-10-16	2009-04-23	Mann + Hummel Gmbh	Ölabscheidevorrichtung, insbesondere zur Kurbelgehäuseentlüftung in einer Brennkraftmaschine
DE102008017919A1 (de) *	2008-04-08	2009-10-15	Mann + Hummel Gmbh	Abscheider für eine Kurbelgehäuseentlüftung einer Brennkraftmaschine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1890070A (en) *	1931-07-14	1932-12-06	Prat Daniel Corp	Dust separator control
DE19918311A1 (de) *	1999-04-22	2000-11-02	Hengst Walter Gmbh & Co Kg	Verfahren zur Entölung von Kurbelgehäuseentlüftungsgasen und Vorrichtungen zur Durchführung des Verfahrens
DE10205981B4 (de) *	2002-02-14	2014-01-09	Mann + Hummel Gmbh	Schaltbare Zyklone zum Abscheiden von Partikeln oder Tropfen aus einem Fluidstrom
DE10251677A1 (de) *	2002-11-07	2004-05-19	Mann + Hummel Gmbh	Zyklonabscheider
DE10251947A1 (de) *	2002-11-08	2004-05-19	Robert Bosch Gmbh	Vorrichtung zur Abscheidung von Flüssigkeit aus einem Gasstrom
DE10309278A1 (de) *	2003-03-04	2004-09-16	Robert Bosch Gmbh	Vorrichtung zur Abscheidung von Flüssigkeit aus einem Gasstrom
DE10325055A1 (de) *	2003-06-02	2004-12-23	Mann + Hummel Gmbh	Einrichtung zum Schalten von Zyklonen
DE202004010550U1 (de) *	2004-07-06	2005-11-17	Hengst Gmbh & Co.Kg	Einrichtung für die Regelung des Drucks im Kurbelgehäuse einer Brennkraftmaschine und für die Ölnebelabscheidung aus dem Kurbelgehäuseentlüftungsgas

2006
- 2006-03-24 DE DE202006004897U patent/DE202006004897U1/de not_active Expired - Lifetime
2007
- 2007-03-16 US US12/294,248 patent/US8230845B2/en active Active
- 2007-03-16 WO PCT/EP2007/052502 patent/WO2007110332A2/fr not_active Ceased
- 2007-03-16 EP EP07726982A patent/EP1999344B1/fr not_active Not-in-force
- 2007-03-16 AT AT07726982T patent/ATE519927T1/de active

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007110332A2 *

Also Published As

Publication number	Publication date
EP1999344B1 (fr)	2011-08-10
DE202006004897U1 (de)	2007-08-23
US20100043763A1 (en)	2010-02-25
WO2007110332A3 (fr)	2008-10-30
US8230845B2 (en)	2012-07-31
WO2007110332A2 (fr)	2007-10-04
ATE519927T1 (de)	2011-08-15

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