EP2463487A1 - Ölschraube und Ölablassöffnung - Google Patents

Ölschraube und Ölablassöffnung Download PDF

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Publication number
EP2463487A1
EP2463487A1 EP10194431A EP10194431A EP2463487A1 EP 2463487 A1 EP2463487 A1 EP 2463487A1 EP 10194431 A EP10194431 A EP 10194431A EP 10194431 A EP10194431 A EP 10194431A EP 2463487 A1 EP2463487 A1 EP 2463487A1
Authority
EP
European Patent Office
Prior art keywords
oil plug
receiver
oil
engagement means
guiding
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
Application number
EP10194431A
Other languages
English (en)
French (fr)
Other versions
EP2463487B1 (de
Inventor
Daniel Arvidsson
Roger BODÉN
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.)
Volvo Car Corp
Original Assignee
Volvo Car Corp
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 Volvo Car Corp filed Critical Volvo Car Corp
Priority to EP10194431.2A priority Critical patent/EP2463487B1/de
Publication of EP2463487A1 publication Critical patent/EP2463487A1/de
Application granted granted Critical
Publication of EP2463487B1 publication Critical patent/EP2463487B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/04—Filling or draining lubricant of or from machines or engines
    • F01M11/0408—Sump drainage devices, e.g. valves, plugs
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/04—Filling or draining lubricant of or from machines or engines
    • F01M11/0408—Sump drainage devices, e.g. valves, plugs
    • F01M2011/0416—Plugs

Definitions

  • the present invention relates to an oil plug in accordance with the preamble of claim 1.
  • the present invention also relates to an oil plug receiver in accordance with the preamble of claim 8. Further, the present invention relates to an assembly thereof comprising the oil plug and the oil plug receiver in accordance with the preamble of claim 12.
  • Leaking oil pans may often be derived from e.g. a leaking oil plug or a leaking connection area in the oil pan holding or connecting an oil plug receiver.
  • Oil plugs may also be referred to as oil drain plugs.
  • a leaking oil plug may be derived from worn out sealing members or threads of the oil plug. Over time sealing members may dry and crack resulting in leakage whereby they need to be replaced. After a period of time, when the oil plug has been opened and closed repeatedly, engaging threads may be worn out due to plastic deformation. The threads seal against each other by engaging against each other. The plastic deformation of the threads may thus be caused by the fact that the threads are turned against each other harder and harder over time.
  • connection may be e.g. a weld or glue member securing the oil plug receiver to the oil pan.
  • the increased turning force against the oil plug will impair the strength of the connection in the connection area as the connection will be affected by the turning force. Over time the fatigue may results in cracks in the connection area leading to leakage therein.
  • US 5680954 discloses a solution of an oil plug comprising an internal wall for being applied against a sleeve-like part of an oil plug receiver.
  • the oil plug receiver in US 5680954 is encapsulated by the oil plug.
  • US 5680954 may enable an improved sealing effect it has some disadvantages.
  • the oil plug in accordance with US 5680954 has a first sealing member on an internal side of an oil plug. The internal side is arranged to face into an oil pan.
  • a second sealing member is arranged outside an oil plug receiver and between the oil plug and an outer surface around the inlet.
  • a radial sealing member is arranged on the oil plug in a direct vicinity to threads of the oil plug.
  • the sealing effect is primarily dependent on whether or not the first sealing member can achieve enough sealing effect being dependent on pressure from a top part of the oil plug receiver bearing against the internal face of the oil plug. The pressure is dependent on how well the threads of the oil plug and oil plug receiver may engage with each other.
  • the threads may be worn out resulting in that the oil plug will have to be turned using more and more force for achieving a sealing closure between the oil plug and the oil plug receiver.
  • One object of the invention is to overcome the above mentioned drawbacks.
  • Another object of the invention is to obtain an oil plug and an oil plug receiver which may cooperate such that the oil plug radially seals against the oil plug receiver when being locked in a "snap out" position in the oil plug receiver.
  • the present invention relates to an oil plug in accordance with claim 1.
  • an oil plug for being held and locked in an oil plug receiver for radial sealing between the oil plug and the oil plug receiver, which oil plug comprises a first engagement means adapted for engaging with complementary second engagement means on the oil plug receiver when the oil plug is arranged in said oil plug receiver.
  • the first engagement means may be arranged on an engagement surface of the oil plug and comprises a first guiding part and a second guiding part, which first guiding part transits to the second guiding part via a transition part, and which second guiding part extends from the transition part to an end part of the second guiding part, which end part, seen along a centre axis of the oil plug, is arranged between the transition part and a guiding inlet to the first guiding part.
  • the first guiding part may be arranged from the guiding inlet at a bottom part of the oil plug forming a thread having an inclination in a direction away from the bottom part.
  • the second guiding part may have an extension being substantially parallel to the centre axis.
  • the extension of the second guiding part from the transition part to the end part may be shorter than the extension of the first guiding part from the guiding inlet to the transition part.
  • the oil plug may be arranged with a spring element.
  • the spring element When the oil plug is in a locked position in the oil plug receiver, the spring element is arranged to push the oil plug in an outgoing direction.
  • the oil plug is, in the outgoing direction, guided and maintained holding the second engagement part within the second guiding part.
  • the spring element may be arranged at a bottom part of the oil plug opposite of an operating device of the oil plug.
  • the spring element may be arranged against an inner side of an operating device of the oil plug facing in a direction towards the bottom part.
  • a second aspect of the invention relates to an oil plug receiver in accordance with claim 8.
  • an oil plug receiver for holding and locking an oil plug for radial sealing between the oil plug receiver and the oil plug, which oil plug receiver comprises a second engagement means being adapted for engaging with complementary first engagement means on the oil plug when the oil plug is arranged in said oil plug receiver.
  • the second engagement means may be arranged on an inner wall of the oil plug receiver for holding the oil plug in an axially locked position by the first engagement means engaging the complementary second engagement means when the oil plug is arranged in the oil plug receiver, which oil plug receiver comprises a contact surface for receiving a spring element for pushing against the oil plug when the oil plug is arranged in an engaged position in the oil plug receiver.
  • the contact surface may be arranged opposite a receiving inlet of the oil plug receiver.
  • the bottom part of the oil plug may face the contact surface of the oil plug receiver when the oil plug is arranged in the oil plug receiver.
  • the contact surface may be arranged within the oil pan at a direct vicinity to an edge portion of the inner wall of the oil plug receiver.
  • a gap is provided between a bottom part of an oil plug when arranged in the oil plug receiver and the contact surface.
  • the spring element adapted to push against the oil plug, may be arranged in the gap.
  • the contact surface is arranged in a plane which is perpendicular to the centre axis of the oil plug and in which plane a receiving inlet of the oil plug receiver is arranged.
  • Such a contact surface may be located in a direct vicinity to the receiving inlet.
  • the spring element, or spring elements may be arranged outside the oil pan.
  • the spring element may be attached to the contact surface.
  • a third aspect of the present invention relates to an assembly comprising an oil plug according to the first aspect and an oil plug receiver according to the second aspect.
  • Fig. 1 discloses an oil plug 1 for being held and locked in an oil plug receiver 2.
  • the oil plug receiver 2 is displayed in Fig. 3 ⁇ 5.
  • the oil plug 1 may be arranged for radial sealing between the oil plug 1 and the oil plug receiver 2.
  • the oil plug 1 comprises a first engagement means 3 adapted for engaging with complementary second engagement means 4 on the oil plug receiver 2 when being arranged in the oil plug receiver 2, see Fig. 3-5 .
  • the first engagement means 3 is arranged on an engagement surface 5 of the oil plug 1.
  • the first engagement means 3 comprises a first guiding part 6 and a second guiding part 7.
  • the first guiding part 6 transits to the second guiding part 7 via a transition part 8.
  • the second guiding part 7 extends from the transition part 8 to an end part 9 of the second guiding part 7.
  • the end part 9, seen along a centre axis 10 of the oil plug 1 is arranged between the transition part 8 and a guiding inlet 11 to the first guiding part 6.
  • the transition part 8 is a part or location arranged between the first and the second guiding part 6, 7.
  • the transition part 8 may be seen as a deviation part where the extension of the first guiding part 6 changes direction to the extension of the second guiding part 7.
  • Fig. 2 discloses the oil plug 1 comprising the first guiding part 6.
  • the first guiding part 6 is arranged from the guiding inlet 11 at a bottom part 12 of the oil plug 1 and continues over the engagement surface 5 towards the transition part 8, see Fig. 1 .
  • the first guiding part 6 forms a thread in the engagement surface 5 extending from the guiding inlet 11 and around the oil plug 1.
  • the thread may be a groove in the engagement surface 5.
  • the guiding part 6 inclines from the guiding inlet 11 and around the oil plug 1 in a direction away from the bottom part 12.
  • the oil plug 1 in accordance with Fig. 1 discloses that the second guiding part 7 has an extension being substantially parallel to the centre axis 10.
  • Fig. 1 it is disclosed that the extension of the second guiding part 7, from the transition part 8 to the end part 9, is shorter than the extension of the first guiding part 6 from the guiding inlet 11 to the transition part 8.
  • the second guiding part 7 is shorter because it does not extend around the oil plug 1 as the first guiding part 6.
  • Fig. 1 and 2 discloses a sealing element 20 which may be arranged on the oil plug 1.
  • the sealing element 20 may e.g. be a gasket or other rubber or plastic member adapted to seal against an adjacent surface. This adjacent surface may for instance be represented by an inner wall 16 of the oil plug receiver 2.
  • the sealing member 20 may be arranged in a groove extending around the oil plug 1 on the engagement surface 5. Seen along the centre axis 10 from the bottom part 12 of the oil plug 1, the sealing member 20 may be arranged after the first engagement means 3.
  • the sealing member 20 has an outer periphery which may extend outside a periphery of the engagement surface 5.
  • the sealing member 20 in accordance with the invention will be placed after the first engagement means 3 on the oil plug 1.
  • the oil plug 1 may be arranged with a spring element 13a, 13b.
  • the spring element 13a, 13b may be a resilient member capable of being compressed and thus after compression able to return to its original form.
  • the spring element 13a may be arranged at a bottom part 12 of the oil plug 1.
  • the spring element 13a in the present embodiment may thus be arranged opposite of an operating device 14 of the oil plug 1.
  • the spring element 13b may be arranged against an inner side 15 of the operating device 14.
  • the inner side 15 is arranged facing in a direction towards the bottom part 12.
  • the spring element 13b may be arranged exterior of the oil pan.
  • at least two spring elements 13b may be used against the inner side 15.
  • the spring elements 13b may, with respect to each other, be arranged against the inner side 15 symmetrically around the centre axis 10.
  • the spring elements 13b being symmetrically arranged has the effect that the oil plug 1 then may have a centralized position and location along the centre axis 14 when arranged in the oil plug receiver 2. This has the effect that the oil plug 1 will be prevented from being tilted or angled within the oil plug receiver 2.
  • the operating device 14 may comprise a knob, handle or other elements enabling turning and/or twisting of the oil plug 1.
  • the operating device 14 may further comprise an internal shaped operating device.
  • Such an internal operating device may comprise e.g. a receiver for a screw driver or alike enabling turning and/or twisting of the oil plug 1.
  • Fig. 3 ⁇ 5 discloses the oil plug receiver 2 for holding and locking the oil plug 1 for radial sealing between the oil plug receiver 2 and the oil plug 1.
  • the oil plug receiver 2 comprises the second engagement means 4 being adapted for engaging with the complementary first engagement means 3 on the oil plug 1 when the oil plug 1 is arranged in said oil plug receiver 2.
  • the second engagement means 4 is arranged on an inner wall 16 of the oil plug receiver 2 for holding the oil plug 1 in an axially locked or engaged position.
  • the first engagement means 3 engages with the complementary second engagement means 4 when the oil plug 1 is arranged in the oil plug receiver 2.
  • the oil plug receiver 2 comprises a contact surface 17a, 17b for receiving a spring element 13a, 13b for pushing against the oil plug 1 when the oil plug 1 is arranged in an engaged position in the oil plug receiver 2.
  • the contact surface 17a may be arranged opposite a receiving inlet 18 of the oil plug receiver 2.
  • the contact surface 17b may be arranged in a direct vicinity to the receiving inlet 18 of the oil plug receiver 2.
  • the contact surface 17b is arranged in a plane 19 which may have a perpendicular extension to the centre axis 14 of the oil plug 1.
  • the receiving inlet 18 of the oil plug receiver 2 may be arranged in the plane 19.
  • the spring element 13a, 13b may be attached against the contact surface 17a, 17b.
  • the oil plug 1 and the oil plug receiver 2 together form an assembly 100 comprising the oil plug 1 and the oil plug receiver 2.
  • the assembly 100 may be adapted for providing a radial sealing between the oil plug 1 and the oil plug receiver 2.
  • the oil plug 1 may be arranged in the oil plug receiver 2 such that the second engagement means 4 of the oil plug receiver 2 can be received into the guiding inlet 11, see Fig. 2 .
  • the oil plug 1 may be slightly pressed in an ingoing direction into the oil plug receiver 2 and simultaneously turned.
  • the second engagement means 4 is guided within the first engagement means 3 on the oil plug 1.
  • the first engagement means 3 may function as a thread engaging with the second engagement means 4.
  • the first engagement means 3 inclines on the engagement surface 5 and at least partly around the oil plug 1.
  • the second engagement means 4 engages with the first engagement means 3 upon turning the oil plug 1.
  • the inclination results in that the oil plug 1 moves in an ingoing direction into the oil plug receiver 2.
  • the turning of the oil plug 3 continues until the second engagement means 4 reach to the transition part 8 in the first engagement means 3.
  • the transition part 8 is a location along the extension of the first engagement means 3 where the first guiding part 6 transits into the second guiding part 7.
  • the second engagement means 4 is guided within the first guiding part 6 of the first engagement means 3.
  • the spring element 13a, 13b between the oil plug 1 and the contact surface 17a, 17b decompresses when the oil plug 1 is turned and moved into the oil plug receiver 2.
  • the first guiding part 6 extends from the guiding inlet 11 to the transition part 8.
  • the second guiding part 7 starts at the transition part 8 and extends to an end part 9 of the second guiding part and the first engagement means 3.
  • the second guiding part 7 extends on the engagement surface 5 from the transition part 8 towards the end part 9 in a direction being substantially parallel to the centre axis 10.
  • the spring element 13a, 13b is compressed when the second engagement means 4 reach the transition part 8. At this position, the force from the compressed spring element 13a, 13b affects the oil plug 1 to move in an outgoing direction with respect to the oil plug receiver 2. Without turning the oil plug 1, the engagement between the second guiding part 7 and the second engagement means 4 steers or guides the oil plug 1 in the outgoing directed movements to the locked position. The outgoing movement of the oil plug 1 continues until the end part 9 connects with the second engagement means 4 and thus is prevented from any further movements in the outgoing direction. The oil plug 1 is in this position in a locked position within the oil plug receiver 2, see Fig. 5 .
  • the oil plug 1 To release the oil plug 1 from the locked position, the oil plug 1 has to be pushed in an ingoing direction into the oil plug receiver 2.
  • the pushing movement of the oil plug 1 decompresses the spring element 13a, 13b.
  • the oil plug 1 is moved in the ingoing direction until the second engagement means 4 reach the transition part 8.
  • the axial directed ingoing movement of the oil plug 1 is stopped.
  • the releasing of the oil plug 1 continues at this point by turning the oil plug 1 in a reversed direction whereby the oil plug 1 is moved in an outgoing direction.
  • the reversed direction is configured by that the second engagement means 4 is guided along and within the first guiding part 6 from the transition part 8 and towards the guiding inlet 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
EP10194431.2A 2010-12-10 2010-12-10 Ölschraube und Ölablassöffnung Active EP2463487B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10194431.2A EP2463487B1 (de) 2010-12-10 2010-12-10 Ölschraube und Ölablassöffnung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10194431.2A EP2463487B1 (de) 2010-12-10 2010-12-10 Ölschraube und Ölablassöffnung

Publications (2)

Publication Number Publication Date
EP2463487A1 true EP2463487A1 (de) 2012-06-13
EP2463487B1 EP2463487B1 (de) 2019-02-20

Family

ID=43929045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10194431.2A Active EP2463487B1 (de) 2010-12-10 2010-12-10 Ölschraube und Ölablassöffnung

Country Status (1)

Country Link
EP (1) EP2463487B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012220695A1 (de) * 2012-11-13 2014-05-15 Dichtungstechnik G. Bruss Gmbh & Co. Kg Drehverschlussanordnung zum Verschließen einer Öffnung in einem Gehäuseteil eines Verbrennungsmotors, und Verfahren zum Verschließen bzw. Öffnen einer solchen Öffnung
CN106969250A (zh) * 2017-05-25 2017-07-21 上海纳铁福传动系统有限公司 加油盖
CN112888839A (zh) * 2018-10-24 2021-06-01 沃尔沃卡车集团 用于流体贮存器的流体排放塞

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817981C1 (en) * 1988-05-27 1988-12-29 Daimler-Benz Ag, 7000 Stuttgart, De Sealing lid for sealing off a passage in a casing part, especially for sealing off an oil pan, which is connected to a gear casing, of a vehicle drive
US5680954A (en) 1994-08-10 1997-10-28 Cummins Engine Company, Inc. Oil fill cap
US6202876B1 (en) * 1998-12-30 2001-03-20 Primary Delivery Systems, Inc. Push and twist locking child-resistant and container
US20070170388A1 (en) * 2006-01-24 2007-07-26 Mann & Hummel Gmbh Oil pan for an internal combustion engine
US20080000724A1 (en) * 2006-06-29 2008-01-03 Stlaske William G Drain Valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817981C1 (en) * 1988-05-27 1988-12-29 Daimler-Benz Ag, 7000 Stuttgart, De Sealing lid for sealing off a passage in a casing part, especially for sealing off an oil pan, which is connected to a gear casing, of a vehicle drive
US5680954A (en) 1994-08-10 1997-10-28 Cummins Engine Company, Inc. Oil fill cap
US6202876B1 (en) * 1998-12-30 2001-03-20 Primary Delivery Systems, Inc. Push and twist locking child-resistant and container
US20070170388A1 (en) * 2006-01-24 2007-07-26 Mann & Hummel Gmbh Oil pan for an internal combustion engine
US20080000724A1 (en) * 2006-06-29 2008-01-03 Stlaske William G Drain Valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012220695A1 (de) * 2012-11-13 2014-05-15 Dichtungstechnik G. Bruss Gmbh & Co. Kg Drehverschlussanordnung zum Verschließen einer Öffnung in einem Gehäuseteil eines Verbrennungsmotors, und Verfahren zum Verschließen bzw. Öffnen einer solchen Öffnung
CN106969250A (zh) * 2017-05-25 2017-07-21 上海纳铁福传动系统有限公司 加油盖
CN112888839A (zh) * 2018-10-24 2021-06-01 沃尔沃卡车集团 用于流体贮存器的流体排放塞
CN112888839B (zh) * 2018-10-24 2023-02-17 沃尔沃卡车集团 用于流体贮存器的流体排放塞
US11649748B2 (en) 2018-10-24 2023-05-16 Volvo Truck Corporation Fluid drain plug for a fluid reservoir

Also Published As

Publication number Publication date
EP2463487B1 (de) 2019-02-20

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