EP0821155A1 - Endothermal injection engine - Google Patents
Endothermal injection engine Download PDFInfo
- Publication number
- EP0821155A1 EP0821155A1 EP97112561A EP97112561A EP0821155A1 EP 0821155 A1 EP0821155 A1 EP 0821155A1 EP 97112561 A EP97112561 A EP 97112561A EP 97112561 A EP97112561 A EP 97112561A EP 0821155 A1 EP0821155 A1 EP 0821155A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- injector
- head
- engine
- annular member
- tube
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F2001/244—Arrangement of valve stems in cylinder heads
- F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis
Definitions
- the present invention relates to an endothermal injection engine, particularly but not exclusively of the compression ignition (Diesel) type used in industrial vehicles.
Abstract
Description
Claims (7)
- An endothermal injection engine (1) of the type comprising at least one cylinder, a head (2), at least one injector (10) associated with the cylinder and housed in the head (2), means (27, 42) for connecting the injector (10) to a high pressure supply tube (40) and to a recycling duct (50), at least one valve (3) associated with the cylinder and provided with at least one spring (7) housed in a tappet space (6) of the head (2) bounded at the bottom by a wall (9) of this head, and means (5) for controlling the valve (3) housed in this tappet space (6), characterised in that the connection means (27, 42) comprise an annular member (27) housed at least partially in the wall (9) of the head (2) bounding the tappet space (6) and provided with a through cavity (31) through which the injector (10) is mounted, this annular member (27) being provided with a radial sleeve (32) facing a supply opening (25) of the injector (10), and a tubular connector (42) screwed into the radial sleeve (32) of the annular member (27) in order to grip one end (41) of the tube (40) disposed within the sleeve (32) against the supply opening (25) of the injector (10).
- An engine as claimed in claim 1, characterised in that the supply opening (25) of the injector (10) has a conical shape, and in that the end of the tube (40) comprises an enlarged head (41) with a nose-shaped front profile adapted to cooperate, in a substantially leak-tight manner, with the supply opening (25) of the injector (10).
- An engine as claimed in claim 1 or 2, characterised in that the head (2) of the engine (1) is made from a light alloy.
- An engine as claimed in one of the preceding claims, characterised in that the annular member (27) bounds, with the head (2), an annular chamber (37) surrounding the injector (10), the recycling duct (50) being provided in this head (2) and communicating with this annular chamber (37) and the injector (10) having a single outlet opening (26) communicating with the annular chamber (37).
- An engine as claimed in claim 4, characterised in that the injector (10) comprises an inner longitudinal duct (17) for the supply of the fuel from an electro-hydraulic control unit of the injector (10) to the outlet opening (26).
- An engine as claimed in claim 4 or 5; characterised in that it comprises first sealing means (36) interposed between the annular member (27) and the bead (2) in the vicinity of the annular chamber (37).
- An engine as claimed in one of claims 4 to 6, characterised in that it comprises second sealing means (38) interposed between the injector (10) and the annular member (27), the supply opening (25) of the injector (10) being disposed between these third sealing means (38) and the annular chamber (37).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT96TO000635A IT1284691B1 (en) | 1996-07-23 | 1996-07-23 | INJECTION ENDOTHERMAL ENGINE |
ITTO960635 | 1996-07-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0821155A1 true EP0821155A1 (en) | 1998-01-28 |
EP0821155B1 EP0821155B1 (en) | 2001-11-28 |
Family
ID=11414810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19970112561 Expired - Lifetime EP0821155B1 (en) | 1996-07-23 | 1997-07-22 | Endothermal injection engine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0821155B1 (en) |
DE (1) | DE69708542T2 (en) |
ES (1) | ES2168551T3 (en) |
IT (1) | IT1284691B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1001162A2 (en) * | 1998-11-12 | 2000-05-17 | Lucas Industries Limited | Injector and injector assembly |
WO2004031562A2 (en) * | 2002-09-30 | 2004-04-15 | Fev Motorentechnik Gmbh | Cylinder head for a direct injection internal combustion engine |
WO2013000695A1 (en) * | 2011-06-30 | 2013-01-03 | Robert Bosch Gmbh | Fuel injector |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010050296B4 (en) * | 2010-11-06 | 2013-11-07 | Hans-Jürgen Guido | Connection arrangement for a tubular fuel line |
US9239035B2 (en) | 2010-11-06 | 2016-01-19 | Hans-Jurgen Guido | Connection arrangement for a tubular fuel line |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2533195A (en) * | 1946-09-23 | 1950-12-05 | Baldwin Locomotive Works | Fuel oil leakage detector for diesel engines |
FR1318701A (en) * | 1962-01-09 | 1963-02-22 | Alsacienne Constr Meca | Engine injector holder connection device |
US3845748A (en) * | 1972-09-29 | 1974-11-05 | Mack Trucks | Fuel injection nozzle holder installation |
GB2049806A (en) * | 1979-05-23 | 1980-12-31 | Fiat Veicoli Ind | Cylinder Head for Compression- ignition Internal Combustion Engines having Precombustion Chambers |
DE4427717C1 (en) * | 1994-08-05 | 1995-08-31 | Daimler Benz Ag | High pressure conduit connection for nozzle holder of fuel injection valve on IC engine cylinder head |
-
1996
- 1996-07-23 IT IT96TO000635A patent/IT1284691B1/en active IP Right Grant
-
1997
- 1997-07-22 EP EP19970112561 patent/EP0821155B1/en not_active Expired - Lifetime
- 1997-07-22 ES ES97112561T patent/ES2168551T3/en not_active Expired - Lifetime
- 1997-07-22 DE DE1997608542 patent/DE69708542T2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2533195A (en) * | 1946-09-23 | 1950-12-05 | Baldwin Locomotive Works | Fuel oil leakage detector for diesel engines |
FR1318701A (en) * | 1962-01-09 | 1963-02-22 | Alsacienne Constr Meca | Engine injector holder connection device |
US3845748A (en) * | 1972-09-29 | 1974-11-05 | Mack Trucks | Fuel injection nozzle holder installation |
GB2049806A (en) * | 1979-05-23 | 1980-12-31 | Fiat Veicoli Ind | Cylinder Head for Compression- ignition Internal Combustion Engines having Precombustion Chambers |
DE4427717C1 (en) * | 1994-08-05 | 1995-08-31 | Daimler Benz Ag | High pressure conduit connection for nozzle holder of fuel injection valve on IC engine cylinder head |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1001162A2 (en) * | 1998-11-12 | 2000-05-17 | Lucas Industries Limited | Injector and injector assembly |
EP1001162A3 (en) * | 1998-11-12 | 2001-07-04 | Delphi Technologies, Inc. | Injector and injector assembly |
WO2004031562A2 (en) * | 2002-09-30 | 2004-04-15 | Fev Motorentechnik Gmbh | Cylinder head for a direct injection internal combustion engine |
WO2004031562A3 (en) * | 2002-09-30 | 2005-05-06 | Fev Motorentech Gmbh | Cylinder head for a direct injection internal combustion engine |
WO2013000695A1 (en) * | 2011-06-30 | 2013-01-03 | Robert Bosch Gmbh | Fuel injector |
Also Published As
Publication number | Publication date |
---|---|
DE69708542T2 (en) | 2002-07-18 |
ES2168551T3 (en) | 2002-06-16 |
IT1284691B1 (en) | 1998-05-21 |
DE69708542D1 (en) | 2002-01-10 |
EP0821155B1 (en) | 2001-11-28 |
ITTO960635A1 (en) | 1998-01-23 |
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