US20040255896A1 - Oil tank valve system - Google Patents

Oil tank valve system Download PDF

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Publication number
US20040255896A1
US20040255896A1 US10/868,733 US86873304A US2004255896A1 US 20040255896 A1 US20040255896 A1 US 20040255896A1 US 86873304 A US86873304 A US 86873304A US 2004255896 A1 US2004255896 A1 US 2004255896A1
Authority
US
United States
Prior art keywords
oil
valve
pressure
oil tank
engine
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.)
Abandoned
Application number
US10/868,733
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English (en)
Inventor
Eberhard Wizgall
Ralf Centmayer
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.)
Weber Motor AG
Polaris Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to POLARIS INDUSTRIES INC., WEBER MOTOR AG reassignment POLARIS INDUSTRIES INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CENTMAYER, RALF, WIZGALL, EBERHARD
Publication of US20040255896A1 publication Critical patent/US20040255896A1/en
Abandoned legal-status Critical Current

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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
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M13/022—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
    • F01M13/023—Control valves in suction conduit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
    • B63H21/386—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like for handling lubrication liquids
    • 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
    • F01M11/06—Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
    • F01M11/062—Accommodating movement or position of machines or engines, e.g. dry sumps
    • F01M11/065—Position
    • F01M11/067—Position inverted, e.g. for inverted flight
    • 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
    • F01M13/0011—Breather valves

Definitions

  • the disclosure relates to a valve arrangement for temporarily closing a vent opening of an oil tank, an oil tank for supplying an engine lubrication circuit and a method for temporarily closing a vent opening of an oil tank.
  • a suitable oil is used as lubricant for an engine lubrication circuit of an internal combustion engine for a vehicle.
  • This oil is stored in an oil tank or reservoir that is incorporated in the engine lubrication circuit.
  • the oil tank is connected to a venting line via a vent opening.
  • the vent opening is provided on the oil tank such that when the oil tank is positioned in the normal way, i.e. when the vehicle is operating normally, no or only a little oil can escape through the vent opening.
  • Jet skis are used for playing a water sport in which a person riding the jet ski travels over the surface of the water in the manner of a motorcycle.
  • the jet ski adopts an essentially horizontal recumbent position. This horizontal position may also occur when after traveling over the surface of the water the jet ski is set down on its side on the beach, for example.
  • vent opening or the attached venting line is closed off using electromagnetically operated valves (needle valves).
  • needle valves can be shut off by a break in the ignition circuit.
  • the valve has to be suitably wired up and in addition it has to have a constant current supply. This results in additional costs both during manufacture and in use.
  • valve arrangement in a vehicle for selectively holding engine oil from leaking into an oil tank vent line.
  • the valve arrangement includes an oil tank that supplies engine oil to an engine lubrication circuit of an internal combustion engine.
  • the oil tank has a vent opening that vents the oil tank.
  • the valve arrangement also includes a valve that closes the vent opening as a function of a pressure of the oil in the engine lubrication circuit.
  • an oil tank for holding and supplying oil to an engine lubrication circuit of an internal combustion engine of a vehicle.
  • the oil tank has a vent opening, an oil inlet opening, and an oil outlet opening.
  • the vent opening vents the oil tank and the oil outlet opening returns oil from the oil tank back to the engine via the engine lubrication circuit.
  • a hydraulic valve is also included that closes the vent opening as a function of a pressure of the oil in the engine lubrication circuit.
  • FIG. 1 shows in diagrammatic side view, partly in section, a preferred embodiment of the invention in a first state.
  • FIG. 2 shows in sectional side view, from a different perspective, the embodiment of FIG. 1 in a second state.
  • FIG. 1 shows an oil tank 2 with a valve arrangement according to one embodiment of the invention.
  • the oil tank 2 which is partly cut open at the top, has a valve 4 in its upper part.
  • the valve 4 comprises a piston 10 sealed off by an O-ring, a closing spring or spring 8 and a closing ram 6 .
  • a vent opening 3 of the oil tank 2 opens directly on to the closing ram 6 of the valve 4 .
  • the oil tank 2 also has an inlet opening 13 for the oil, shown at the top in FIG. 1, and a return 15 for the oil to flow back to the engine at the bottom.
  • the valve 4 is controlled by the pressure oil connection 12 to which is secured to a pressure line 7 of the engine lubricating or lubrication circuit.
  • the oil which is under pressure in the pressure line 7 in the engine lubrication circuit, presses against the piston 10 at the pressure oil connection 12 , this piston 10 acting upon or positioning the spring 8 and hence the closing ram 6 as a function of the force of the pressure of the oil.
  • the valve is connected to a pressure line of the engine lubrication circuit via a pressure oil connection, and the oil opens and closes the vent opening using the valve via the pressure oil connection as a function of the pressure.
  • variations in the pressure of the oil within the engine lubrication circuit can be utilized directly.
  • the valve can easily be connected via the pressure oil connection. This is particularly the case when the oil tank is located close to the internal combustion engine.
  • valve arrangement or the oil tank 2 is in a closed state. This may be the case when the engine is switched off. In this case, the pressure of the oil inside the engine lubrication circuit is below a switchover pressure, with the result that the force of the pressure of the oil acting on the piston 10 at the pressure connection 12 within the engine lubrication circuit is not sufficient to counteract the force of the spring 8 to such an extent that the closing ram 6 is pressed downwards and the vent opening 3 is opened.
  • the vent opening is opened by means of the valve above a switchover pressure of the oil and closed below the switchover pressure.
  • the vent opening is closed by means of the valve above a switchover pressure of the oil and opened below the switchover pressure.
  • the operation of the valve may be adapted to suit specific and/or particularly favorable conditions. Depending on whether the pressure of the oil is built up or broken down faster within the engine circuit, the construction of the valve and/or actuation of the valve by connection to the pressure line via the pressure oil connection may be suitably or favorably designed.
  • the switchover pressure may be set at a defined level so that any changes in the pressure conditions within the engine lubrication circuit can be taken into account in a flexible manner. This may be the case after assembly, for example. However, this also makes it possible to fit a valve arrangement to oil tanks of different combustion engines having correspondingly different oil pressures during operation.
  • the vent opening is opened by means of the valve when the engine is running and shut when the engine is at a standstill. Venting of the oil tank only occurs and/or is necessary in these embodiments as long as the engine is running.
  • the valve arrangement according to the invention promptly shuts off the oil tank. This ensures that the oil cannot be sucked in accidentally. The combustion of oil and the resulting harmful emissions can be avoided.
  • burnt oil may be deposited, which detracts from the efficiency of the engine and, in the worst-case scenario, causes damage.
  • the switchover pressure is at least 0.5 bar.
  • the vent opening and hence the oil tank are consequently opened at a pressure of more than 0.5 bar.
  • the switchover pressure is at least 1.5 bar.
  • FIG. 2 shows the valve arrangement according to one embodiment of the invention and the oil tank 2 in cross-section in side view, rotated through 90°.
  • FIG. 2 also shows venting channels 5 , vent line 22 , the inside 14 of the oil tank 2 holding oil 9 , a welded-in mesh 17 in the return means 15 , a cooling water inlet 18 , a cooling water jacket 19 and a cooling water outlet 20 .
  • FIG. 2 shows the valve arrangement and hence the oil tank 2 in an open state.
  • the force of the pressure of the oil on the pressure oil connection 12 on the piston 10 is sufficient to overcome the force of the spring 8 and press the closing ram 6 downwards. This is the case particularly when the pressure of the oil prevailing in the engine lubrication circuit exceeds the switchover pressure of the valve arrangement, which can be set to a defined level. In this state, it is possible for air to escape from the interior 14 of the tank through the venting channels 5 , as indicated by the arrows.
  • the valve may have a spring counteracting the pressure of the oil.
  • the valve can react directly and straightforwardly to the pressure of the oil within the engine lubrication circuit.
  • FIGS. 1 and 2 show when viewed together, the valve arrangement is actuated by the pressure of the oil in the engine lubrication circuit.
  • the valve 4 In the event of the motor coming to a standstill (pressure of the oil is less than the switchover pressure) the valve 4 is shut, actuated by the spring 8 .
  • the valve 4 When the engine is running (oil pressure present, pressure of the oil is greater than the switchover pressure) the valve 4 opens.
  • An opening or closing movement occurs as the result of the interaction between a force of the spring 8 and a force of the pressure of the oil acting upon the piston 10 at the pressure oil connection in this embodiment of the invention.
  • a sealing seat for the valve 4 in the form of a plate valve, in particular, is constructed as a conical seat.
  • the oil tank 2 is closed off in airtight and/or oiltight manner by the closing ram 6 that engages on the vent opening 3 .
  • the valve of the valve arrangement that temporarily closes a vent opening of an oil tank is constructed as a plate valve.
  • the vent opening of the oil tank or a venting line for the oil tank can be opened and closed over a large cross section.
  • the high level of force of the oil acting upon the spring of the valve prevents accidental closure of the valve.
  • the operation of the valve is not affected and/or impaired by for example, forces of gravity or inertia generated by acceleration processes.
  • the operation of the valve arrangement is also unaffected by vibrations.
  • the high differential force which influences the function of the valve arrangement according to the invention by the interaction between the spring on the one hand and the pressure of the oil on the other hand ensures that the valve and hence the vent opening and the oil tank can be closed off tightly, in order to be airtight and/or oiltight, in particular.
  • the oil tank valve arrangement above may be used in any internal combustion engine having an engine lubrication circuit with an oil tank. Obviously, in other embodiments, it may be that another device inside an internal combustion engine is affected by the pressure-dependent switching between two possible states. This is particularly advantageous when the running and stoppage of the engine are critical determinants for a change of state.
  • the oil tank valve arrangement above may be applied to engines of all kinds of vehicles. It may be used to particular advantage in substantially “single-track” vehicles and/or vehicles which change their position even during normal operation. This may apply to motorcycles or snowmobiles, provided that they are not tipped on to their sides to park them when they are not operational.
  • the invention may be used in marine sports equipment of all kinds and particularly in jet skis.
  • a jet ski traveling on the water tips on to its side.
  • the valve arrangement or the oil tank is sealed off in airtight and/or oiltight manner once the internal combustion engine has ceased operation, harmful escape of oil into the vent line 22 is prevented.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
US10/868,733 2003-06-16 2004-06-15 Oil tank valve system Abandoned US20040255896A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10328178.9 2003-06-16
DE10328178A DE10328178A1 (de) 2003-06-16 2003-06-16 Ventilanordnung, Öltank und Verfahren zum temporären Verschließen eines Öltanks

Publications (1)

Publication Number Publication Date
US20040255896A1 true US20040255896A1 (en) 2004-12-23

Family

ID=33394944

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/868,733 Abandoned US20040255896A1 (en) 2003-06-16 2004-06-15 Oil tank valve system

Country Status (3)

Country Link
US (1) US20040255896A1 (fr)
EP (1) EP1489273A1 (fr)
DE (1) DE10328178A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7475680B2 (en) * 2005-04-06 2009-01-13 Polaris Industries Inc. Integrated liquid-gas separator and reservoir

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977384A (en) * 1971-07-31 1976-08-31 Motoren- Und Turbinen-Union Friedrichshafen Gmbh Internal combustion engine oil pressure loss safety device
US5868285A (en) * 1997-05-07 1999-02-09 Boyte, Sr.; James M. Float valve structure for controlling pouring of liquid from resiliently flexible container
US5887564A (en) * 1996-05-31 1999-03-30 Kawasaki Jukogyo Kabushiki Kaisha Internal combustion engine for small planing watercraft
US6044808A (en) * 1996-01-30 2000-04-04 Hollis; Thomas J. Electronically assisted thermostat for controlling engine temperature
US6394860B1 (en) * 1999-06-17 2002-05-28 Yamaha Hatsudoki Kabushiki Kaisha Lubrication system for small watercraft

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2138494A1 (de) * 1971-07-31 1973-02-08 Motoren Turbinen Union Sicherheitsvorrichtung
DE19860154A1 (de) * 1998-12-24 2000-06-29 Daimler Chrysler Ag Einrichtung zur Entlüftung des Kurbelgehäuses eines Verbrennungsmotors
EP1283945B1 (fr) * 2000-05-24 2007-01-24 Parker-Hannifin Corporation Soupape d'arret de surete destinee a un systeme de regulation des emissions de carter
DE10147230B4 (de) * 2000-09-15 2006-01-05 Alfmeier Präzision AG Baugruppen und Systemlösungen Entlüftungsvorrichtung für ein Kurbelgehäuse eines Brennkraftmotors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977384A (en) * 1971-07-31 1976-08-31 Motoren- Und Turbinen-Union Friedrichshafen Gmbh Internal combustion engine oil pressure loss safety device
US6044808A (en) * 1996-01-30 2000-04-04 Hollis; Thomas J. Electronically assisted thermostat for controlling engine temperature
US5887564A (en) * 1996-05-31 1999-03-30 Kawasaki Jukogyo Kabushiki Kaisha Internal combustion engine for small planing watercraft
US5868285A (en) * 1997-05-07 1999-02-09 Boyte, Sr.; James M. Float valve structure for controlling pouring of liquid from resiliently flexible container
US6394860B1 (en) * 1999-06-17 2002-05-28 Yamaha Hatsudoki Kabushiki Kaisha Lubrication system for small watercraft

Also Published As

Publication number Publication date
EP1489273A1 (fr) 2004-12-22
DE10328178A1 (de) 2005-01-20

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Legal Events

Date Code Title Description
AS Assignment

Owner name: POLARIS INDUSTRIES INC., MINNESOTA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WIZGALL, EBERHARD;CENTMAYER, RALF;REEL/FRAME:015697/0024

Effective date: 20040802

Owner name: WEBER MOTOR AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WIZGALL, EBERHARD;CENTMAYER, RALF;REEL/FRAME:015697/0024

Effective date: 20040802

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION