EP3094834A1 - Oil suction system for an internal combustion engine comprising at least one cylinder that is horizontal or inclined below the horizontal plane - Google Patents
Oil suction system for an internal combustion engine comprising at least one cylinder that is horizontal or inclined below the horizontal planeInfo
- Publication number
- EP3094834A1 EP3094834A1 EP15702535.4A EP15702535A EP3094834A1 EP 3094834 A1 EP3094834 A1 EP 3094834A1 EP 15702535 A EP15702535 A EP 15702535A EP 3094834 A1 EP3094834 A1 EP 3094834A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- combustion engine
- cylinder head
- engine according
- cylinder
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 13
- 238000004880 explosion Methods 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 11
- 230000005484 gravity Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
-
- 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
-
- 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
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0253—Pressure lubrication using lubricating pumps characterised by the pump driving means
- F01M2001/0261—Pressure lubrication using lubricating pumps characterised by the pump driving means driven by the camshaft
-
- 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
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0284—Pressure lubrication using lubricating pumps mounting of the pump
Definitions
- the present invention relates to the field of explosion engines, and more particularly to engines whose cylinders are horizontal or inclined under the horizontal plane. This situation may result either from the vehicle architecture (for example a car engine with flat cylinders, or a flat-twin motorcycle), or from its use (for example an airplane, notably aerobatics, or a motorcycle crutched). State of the art
- the cylinder head is the upper part, most often removable, a reciprocating piston engine. She closes the top of the cylinders. On some engines, the intake and exhaust valves are housed. Its shape and characteristics are always closely linked to the evolution of the engines and are more particularly determined according to the type of distribution and the shape of the combustion chamber.
- the present invention relates, in its most general sense, to an explosion engine comprising at least one cylinder inclined under the horizontal plane, comprising a cylinder head provided with lubricating means, and a distribution system, characterized in that said cylinder head comprises an oil return pump sucking the oil into the low point of the cylinder head cover and driving the oil towards the main casing of the engine.
- said pump is driven by the dispensing system.
- the body of the pump is machined in the cylinder head and closed by a lid.
- the body of the pump opens into a suction bore.
- said pump is a trochoidal pump.
- FIG. 1 shows a front three-quarter view of the cylinder head of an open engine
- FIG. 2 represents a three-quarter front view of the cylinder head of an engine with the pump rotor without a cylinder head cover or pump cover
- Figure 3 shows a front three-quarter view of the breech without cylinder head cover with its pump cover
- Figure 4 shows a rear view.
- the invention preferably relates to a twin-cylinder engine whose cylinders are opposite and arranged longitudinally with respect to the vehicle, in particular a motorcycle.
- the cylinders are inclined relative to the horizontal plane at an angle of about 25 °.
- One of the cylinders is inclined downwards, the other by the top.
- Lubricating oil has a tendency to accumulate in the lower head of the bolt, and must be evacuated.
- the evacuation is done by gravity.
- the evacuation can be done by gravity or with a pump.
- the oil of the crankcase can go up through the evacuation tubes towards the cylinder head, which is not appropriate.
- Figure 1 shows a view of the cylinder head (1) and the cylinder (2).
- the cylinder head (1) is shown without its upper half bearing or the pump.
- the cylinder head has an exhaust cam shaft (3) and an intake cam shaft (4).
- the yoke (1) has at its end an extension (5) on which is applied the half-bearing (6) shown in Figure 2.
- the pump body (7) is formed by machining for a first semi-cylindrical part (8) in the extension (5) and a second semi-cylindrical portion (9) machined in half-bearing (6).
- the inner (10) and outer (11) rotors are housed in the pump body (7).
- the inner rotor (10) is carried by the camshaft end (12) and driven by the pin (13).
- a cover (14) closes the pump. It has on its inner surface an inlet pocket (15) and an exhaust pocket (16).
- the oil is drawn from an orifice (17) connecting the draw zone (18) located in the lower part of the cylinder head to a cylinder head inlet pocket (19) communicating with the air bag. inlet (15) of the lid, supplying the pump.
- the oil is sucked between the inner rotor (10) and the outer rotor (11) and pushed into the pocket (16).
- This pocket (16) communicates with the pocket (20) to be then rejected in a drilling system oriented along the axis (21), into the main housing of the engine.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1450241A FR3016403B1 (en) | 2014-01-13 | 2014-01-13 | OIL SUCTION SYSTEM FOR EXPLOSION ENGINE COMPRISING AT LEAST ONE HORIZONTAL OR INCLINE CYLINDER |
PCT/FR2015/050029 WO2015104498A1 (en) | 2014-01-13 | 2015-01-08 | Oil suction system for an internal combustion engine comprising at least one cylinder that is horizontal or inclined below the horizontal plane |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3094834A1 true EP3094834A1 (en) | 2016-11-23 |
EP3094834B1 EP3094834B1 (en) | 2019-11-27 |
Family
ID=50729608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15702535.4A Active EP3094834B1 (en) | 2014-01-13 | 2015-01-08 | Oil aspiration system for an engine having a cylinder horizontal or inclined under an horizontal plane |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3094834B1 (en) |
JP (1) | JP6539853B2 (en) |
CN (1) | CN106030058A (en) |
FR (1) | FR3016403B1 (en) |
WO (1) | WO2015104498A1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0680289B2 (en) * | 1984-03-14 | 1994-10-12 | ヤマハ発動機株式会社 | Lubricating device for motorcycle engine |
JPH0169105U (en) * | 1987-10-27 | 1989-05-08 | ||
DE4007939C1 (en) * | 1990-03-13 | 1991-08-08 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Oil return system from IC engine cylinder head to sump - has oil return line completely outside engine block, and collector on cylinder head casing outside |
DE4424248C1 (en) * | 1994-07-09 | 1995-12-07 | Porsche Ag | Internal combustion engine with two cylinder banks inclined against the vertical |
JP3194179B2 (en) * | 1994-09-30 | 2001-07-30 | スズキ株式会社 | Outboard oil pump device |
DE102008014828A1 (en) * | 2008-03-18 | 2009-09-24 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Internal combustion engine |
DE102009042290B4 (en) * | 2009-09-19 | 2012-03-01 | Reinhart Fenske | Box-type two-stroke internal combustion engine |
CN202832714U (en) * | 2012-09-14 | 2013-03-27 | 长城汽车股份有限公司 | Oil returning structure of automobile engine oil-gas separation system |
-
2014
- 2014-01-13 FR FR1450241A patent/FR3016403B1/en active Active
-
2015
- 2015-01-08 EP EP15702535.4A patent/EP3094834B1/en active Active
- 2015-01-08 WO PCT/FR2015/050029 patent/WO2015104498A1/en active Application Filing
- 2015-01-08 JP JP2016563266A patent/JP6539853B2/en active Active
- 2015-01-08 CN CN201580008837.3A patent/CN106030058A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR3016403A1 (en) | 2015-07-17 |
EP3094834B1 (en) | 2019-11-27 |
CN106030058A (en) | 2016-10-12 |
JP6539853B2 (en) | 2019-07-10 |
WO2015104498A1 (en) | 2015-07-16 |
JP2017502211A (en) | 2017-01-19 |
FR3016403B1 (en) | 2018-10-12 |
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