EP0262598B2 - Moteur à combustion interne - Google Patents
Moteur à combustion interne Download PDFInfo
- Publication number
- EP0262598B2 EP0262598B2 EP87114010A EP87114010A EP0262598B2 EP 0262598 B2 EP0262598 B2 EP 0262598B2 EP 87114010 A EP87114010 A EP 87114010A EP 87114010 A EP87114010 A EP 87114010A EP 0262598 B2 EP0262598 B2 EP 0262598B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil
- throttle
- combustion engine
- valve
- internal combustion
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P9/00—Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00
-
- 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
- F01M1/16—Controlling lubricant pressure or quantity
-
- 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
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/005—Controlling temperature of lubricant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P2003/006—Liquid cooling the liquid being oil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/08—Cabin heater
Definitions
- the invention relates to an internal combustion engine according to the preamble of the first claim.
- DE-OS 28 25 870 describes an internal combustion engine with a cooling oil and lubricating oil circuit connected in parallel, both circuits being acted upon by a common oil pump.
- a heat exchanger oil cooler
- This bypass line is controlled by a thermostatic valve, which directs the oil through the oil cooler from a certain oil temperature and below it through the bypass. So that the lubricating oil circuit is primarily supplied with oil when the oil pressure is too low, a priority valve is arranged in the cooling oil circuit, which only allows passage through the cooling oil circuit above a certain oil pressure.
- thermostatic valve in a bypass line of the heat exchanger, as described in DE-OS 28 25 870, is intended to conduct the oil through the bypass line at low temperatures.
- US-A-3,127,879 also shows an internal combustion engine with a cooling oil and lubricating oil circuit connected in parallel. Both circuits are operated by a common oil pump. To ensure that there is still enough lubricating oil in the lubricating oil circuit at a low oil pressure, a priority valve is located behind the cylinder cooling chamber and in front of the oil cooler, which only releases the passage from a certain oil pressure. This priority valve is also provided with a bypass line in which a throttle is arranged to ensure a minimum flow through the cooling oil circuit. In the flow direction behind the priority valve and in front of the oil cooler, an outflow line with a safety valve leads directly into the oil sump of the internal combustion engine. The disadvantage of this arrangement is that two valves are required, which take up space and are prone to failure. In addition, the oil pressure upstream of the heat exchanger is not even.
- the object of the invention is, while avoiding the disadvantage just mentioned, to equalize the oil pressure in an internal combustion engine upstream of the heat exchangers with simple means, so that it is almost independent of the oil temperature.
- the throttle is arranged in the flow direction in front of the first point of the internal combustion engine to be cooled in order to ensure that the entire internal combustion engine is heated.
- a simple, inexpensive embodiment of the throttle is to design it as a bore in the housing of the internal combustion engine.
- a priority valve is arranged in the cooling oil circuit, which consists of a spring-loaded piston guided in a bushing.
- the throttle is advantageously integrated in the priority valve, a gap being expediently arranged between the piston and the bushing through which the cooling oil flows when the valve is open.
- Fig. 1 shows an oil circuit of an internal combustion engine, wherein the cooling oil and lubricating oil circuit 5, 6 are acted upon by a common oil pump 3.
- An overpressure valve 4 is arranged in the direction of flow behind the oil pump 3 and controls the outflow into an oil return line 18 and thereby limits the maximum oil pressure.
- the oil delivered by the oil pump 3 is divided into two partial flows, one of which forms the cooling oil circuit 5 and the other the lubricating oil circuit 6.
- An oil filter 8 is arranged upstream of this in the flow direction so that only cleaned oil enters the motor 7 in the lubricating oil circuit 6.
- a priority valve 9 is installed in the cooling oil circuit 5, which has the task of supplying the lubricating oil circuit 6 primarily with oil.
- a throttle 2 is arranged in the cooling oil circuit 5, two heat exchangers, namely an engine oil cooler 10 and a heater 11, being arranged in the flow direction behind the engine 7 in front of an oil holding valve 12.
- the engine oil cooler 10 is controlled by a thermostat 13, which only releases the flow through the engine oil cooler 10 at a certain predeterminable temperature of the oil.
- the heater 11 is located in the direction of flow behind the engine oil cooler 10, a heater valve 14 also enabling or blocking the flow to the heater 11 here.
- a control valve 15 is arranged in the inflow thereof, which regulates a bypass 16 to the heater 11.
- the oil pressure upstream of the heat exchangers is equalized by the throttle 2 and the risk of bursting of the heat exchangers is thereby reduced.
- the throttle is to be arranged in the flow direction upstream of the first point to be cooled in the cooling oil circuit of the internal combustion engine in order to ensure that the entire internal combustion engine is heated.
- the priority valve 9 shows a priority valve 9 with an integrated throttle for installation in the cooling oil circuit of an internal combustion engine.
- the priority valve 9 consists of a bushing 19 with a valve inlet 22 and valve outlet 23, a piston 20 loaded by a spring 24 being guided in the bushing 19.
- a gap 21 is arranged between the piston 20 and the bush 19, which is designed as a throttle.
- the piston 20, held by the spring 24 sits sealingly on a valve seat 25 at the valve inlet 22 and thereby blocks it.
- the piston 20 is moved against the spring force in the sleeve 19 and the oil flows through the valve inlet 22 through the gap 21, i. H. the throttle, in the valve outlet 23.
- the arrows in FIG. 2 show the flow of the oil in the open state of the priority valve 9.
- throttle cross section is selected in a suitable manner, only a temperature-dependent amount of oil will pass the throttle, while the other part of the oil is available for other purposes.
- a throttle thus equalizes the oil pressure upstream of the heat exchangers by reducing the flow rate, in contrast to a thermostatic valve, which blocks the oil flow through the heat exchanger below a certain temperature and thereby causes the oil pressure in the heat exchanger to drop abruptly.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Glass Compositions (AREA)
- Valve Device For Special Equipments (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Claims (4)
- Moteur à combustion interne avec un circuit d'huile de refroidissement et un circuit d'huile de lubrification (5, 6) et avec au moins une pompe à huile (3) alimentant ces circuits, et un échangeur thermique disposé dans le circuit d'huile de refroidissement (5), tandis qu'en amont de l'échangeur thermique dans le sens de l'écoulement, est disposé un étranglement (2),
moteur à combustion interne caractérisé en ce queentre la pompe à huile (3) et l'étranglement (2) se trouve une canalisation de retour d'huile commandée par une soupape de surpression (4),et en ce que l'étranglement (2) est disposé dans le sens de l'écoulement en amont du premier emplacement à refroidir du moteur à combustion interne,et en ce que la totalité de l'huile de refroidissement s'écoule à travers l'étranglement (2). - Moteur à combustion interne selon la revendication 1,
caractérisé en ce que
l'étranglement (2) est réalisé sous la forme d'un perçage dans le carter du moteur à combustion interne. - Moteur à combustion interne selon la revendication 1, avec une soupape de priorité (9) dans le circuit d'huile de refroidissement (5), cette soupape étant constituée par un piston (20) sollicité par un ressort et guidé dans une douille (19),
moteur à combustion interne caractérisé en ce que
l'étranglement (2) est intégré dans la soupape de priorité (9). - Moteur à combustion interne selon la revendication 3,
caractérisé en ce qu'
entre le piston (20) et la douille (19) est ménagé un interstice (21) à travers lequel l'huile s'écoule lorsque la soupape de priorité (9) est ouverte.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87114010T ATE66519T1 (de) | 1986-10-02 | 1987-09-25 | Brennkraftmaschine. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863633576 DE3633576A1 (de) | 1986-10-02 | 1986-10-02 | Brennkraftmaschine |
DE3633576 | 1986-10-02 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0262598A2 EP0262598A2 (fr) | 1988-04-06 |
EP0262598A3 EP0262598A3 (en) | 1988-12-14 |
EP0262598B1 EP0262598B1 (fr) | 1991-08-21 |
EP0262598B2 true EP0262598B2 (fr) | 1997-03-19 |
Family
ID=6310913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87114010A Expired - Lifetime EP0262598B2 (fr) | 1986-10-02 | 1987-09-25 | Moteur à combustion interne |
Country Status (4)
Country | Link |
---|---|
US (1) | US4834029A (fr) |
EP (1) | EP0262598B2 (fr) |
AT (1) | ATE66519T1 (fr) |
DE (2) | DE3633576A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
YU60389A (sh) * | 1988-04-29 | 1993-10-20 | Steyr-Daimler-Puch Ag. | Uljno hladjeni motor sa unutrašnjim sagorevanjem |
DE3843827A1 (de) * | 1988-12-24 | 1990-07-05 | Kloeckner Humboldt Deutz Ag | Brennkraftmaschine mit zwei hydraulischen fluessigkeitskreislaeufen |
DE4325141A1 (de) * | 1993-07-27 | 1995-02-02 | Kloeckner Humboldt Deutz Ag | Brennkraftmaschine |
DE4442221A1 (de) * | 1994-11-26 | 1996-05-30 | Kloeckner Humboldt Deutz Ag | Ölgekühlte Hubkolben-Brennkraftmaschine |
DE19741861B4 (de) * | 1997-09-23 | 2004-07-22 | Daimlerchrysler Ag | Vorrichtung zur Regelung des Kühlwasserkreislaufes für einen Verbrennungsmotor |
EP1050569A1 (fr) * | 1999-05-06 | 2000-11-08 | Filip Vandeputte | Réfrigérant liquide pour moteurs à combustion interne |
DE102004016506B4 (de) * | 2004-04-03 | 2013-08-22 | Mahle Filtersysteme Gmbh | Wärmetauscher für einen Wärmetausch zwischen zwei Flüssigkeiten, insbesondere Ölkühler in einem Kraftfahrzeug |
US8215280B2 (en) * | 2008-02-28 | 2012-07-10 | Df Reserve, Lc | Power linkage assembly for a high efficiency internal explosion engine |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE333328C (de) * | 1917-10-07 | 1921-02-22 | Meyer Fa Rudolf | OElkuehler mit zwei oder mehreren Kuehlwegen |
US2078499A (en) * | 1928-09-01 | 1937-04-27 | Spontan Ab | Cooling system for internal combustion engines |
US2085810A (en) * | 1932-06-20 | 1937-07-06 | Spontan Ab | Cooling of internal combustion engines |
DE902564C (de) * | 1942-11-24 | 1954-01-25 | Sueddeutsche Kuehler Behr | Schmiervorrichtung fuer Brennkraftmaschinen |
US2526450A (en) * | 1943-05-12 | 1950-10-17 | Aspin Frank Metcalf | Lubrication system |
US2456951A (en) * | 1946-05-01 | 1948-12-21 | Crosley Motors Inc | Cooling system for internalcombustion engines |
US2611347A (en) * | 1948-12-06 | 1952-09-23 | Daimler Benz Ag | Controllable cooling system for internal-combustion engines |
US3065743A (en) * | 1961-02-09 | 1962-11-27 | Int Harvester Co | Internal combustion engine lubricating system and temperature regulating means for the pistons thereof |
US3127879A (en) * | 1962-02-10 | 1964-04-07 | Fiat Spa | Cooling cylinder liners of internal combustion engines |
US3213930A (en) * | 1964-06-01 | 1965-10-26 | Robinson Robert Clayton | Oil temperature regulators for internal combustion engines |
CH463874A (de) * | 1967-02-14 | 1968-10-15 | Hegglin Emil | Olkühleinrichtung an einem Verbrennungsmotor |
US3485324A (en) * | 1967-11-07 | 1969-12-23 | Allis Chalmers Mfg Co | Piston cooling system |
US3687232A (en) * | 1970-08-21 | 1972-08-29 | August M Stenger | Oil distribution system |
US3981279A (en) * | 1975-08-26 | 1976-09-21 | General Motors Corporation | Internal combustion engine system |
GB1567240A (en) * | 1977-04-28 | 1980-05-14 | Brown Tractors Ltd | Internal combustion engines |
IT1115349B (it) * | 1977-06-13 | 1986-02-03 | Brighigna Mario | Motore a combustione interna raffreddato mediante l'olio di lubrificazione |
US4270562A (en) * | 1979-09-28 | 1981-06-02 | Caterpillar Tractor Co. | Fluid sequence bypass apparatus |
DE3420194A1 (de) * | 1983-06-04 | 1985-01-31 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Regelventil zur druck- oder stromregelung |
US4708095A (en) * | 1986-06-16 | 1987-11-24 | Deere & Company | Combined engine cooling and lube system |
-
1986
- 1986-10-02 DE DE19863633576 patent/DE3633576A1/de not_active Withdrawn
-
1987
- 1987-09-25 AT AT87114010T patent/ATE66519T1/de not_active IP Right Cessation
- 1987-09-25 US US07/100,926 patent/US4834029A/en not_active Expired - Fee Related
- 1987-09-25 EP EP87114010A patent/EP0262598B2/fr not_active Expired - Lifetime
- 1987-09-25 DE DE8787114010T patent/DE3772314D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0262598B1 (fr) | 1991-08-21 |
US4834029A (en) | 1989-05-30 |
EP0262598A2 (fr) | 1988-04-06 |
EP0262598A3 (en) | 1988-12-14 |
ATE66519T1 (de) | 1991-09-15 |
DE3772314D1 (de) | 1991-09-26 |
DE3633576A1 (de) | 1988-04-07 |
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