CA1156527A - Cylinder head for an internal-combustion engine - Google Patents
Cylinder head for an internal-combustion engineInfo
- Publication number
- CA1156527A CA1156527A CA000363441A CA363441A CA1156527A CA 1156527 A CA1156527 A CA 1156527A CA 000363441 A CA000363441 A CA 000363441A CA 363441 A CA363441 A CA 363441A CA 1156527 A CA1156527 A CA 1156527A
- Authority
- CA
- Canada
- Prior art keywords
- oil
- camshaft
- cylinder head
- lubricating oil
- tappet
- 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
Links
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
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
-
- 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
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
- F01M9/101—Lubrication of valve gear or auxiliaries of cam surfaces
-
- 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
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
- F01M9/104—Lubrication of valve gear or auxiliaries of tappets
-
- 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
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
-
- 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
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/20—SOHC [Single overhead camshaft]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
ABSTRACT
A cylinder head for an automotive type engine has an overhead camshaft and oil collecting basins adjacent the tappet guides to collect excess oil exuded from the guides;
the basins have holes aligned with the cams on the camshaft to drip oil thereon for proper camshaft lubrication; inserts may be used in the oil drip holes, or specially formed drip edges adjacent the holes may be used.
A cylinder head for an automotive type engine has an overhead camshaft and oil collecting basins adjacent the tappet guides to collect excess oil exuded from the guides;
the basins have holes aligned with the cams on the camshaft to drip oil thereon for proper camshaft lubrication; inserts may be used in the oil drip holes, or specially formed drip edges adjacent the holes may be used.
Description
1 ~56527 CYLI~:)E~ HEAD FOR AN INT53RNAL-COMBUSTION ENGINE
The invention relates to a cylinder head for an internal combustion engine o~ the type having a hemispherically or dome-shaped combustion chamber with intake and exhaust valves arranged approximately radially to its surface. The valves are operable by sheet metal rocker arms actuated by tappets engaged directly with the cams of an overhead camshaft. The camshaft is arranged symetrically between the intake and exhaust valve trains. Bridges span the camshaft adjacent to the camshaft bearing webs, and are formed from the cylinder head projections or bosses that accommodate the valve stem guides, the rocker arm stud mounting holes, and the tappet guides.
A cylinder head of the type broadly described above is shown and described in U.S. Patent 3,164,143. In the patent, the area of the cylinder head extending beneath the camshaft is of a tank-shaped construction. This permits excess lubricating oil that runs off from the tappet guides, which generally are supplied with an excess of lubricating oil under pressure, to accumulate, forming a lubricating oil sump for the camshaft. The usual drainage orifices from this lubricating oil sump are located to provide an oil level build up that will assure the cam surfaces of the camshaft being wetted by the dip lubrication method. Lubrication of the rocker arm bearing pieces, therefore, in the patent is intended to be achieved by the splash oil occurring in the valve gear space.
In an internal combustion engine, if hydraulic valve tappets are adopted, which automatically compensate for play in the valve gear, then it is important to control the amount of air that is added to the lubricating oil delivered by the oil pump to the engine.
The lubrication of the valve gear of an internal combustion engine by pressure lubrication and dip and splash lubrication hitherto practiced leads inevitably to higher :~;
proportions of air in the lubricating oil, This results either in an impairment of effectiveness of the hydraulic valve tappets or, alternatively, the adoption of onerous measures to calm the lubricating oil~
In accordance with the present invention, there is provided a cylinder head for an internal combustion engine having a dome-shaped combustion chamber with intake and exhaust valves arranged approximately radial to the surface of the chamber and symmetrically located on opposite sides of a single overhead camshaft for individual actua-tion by one end of a rocker arm that is pivotally mounted to the head by a stud, the rocker arm being operably engaged at its opposite end by a tappet movable by the camshaft, and bridge members spanning the camshaft and providing mounting bores for the studs, and providing tappet guides slidably accommodating the tappets therein, the tappet guides receiving lubricating oil therein that is exuded from the guides during movement of the tappet by the camshaft, characterized byt an oil collecting basin adjacent a tappet guide fbr collecting oil exuded thererom, the basin having a discharge hole therein vertically aligned with a portion of a cam on the camshaft so as to drip oil on the cam to lubricate the cam.
The improved construction of a cylinder head Of the present invention eliminates the hitherto customar~
dip and splash lubrication of parts of the valve gear of the internal combustion engine. The collection of the lubricating oil exuding from the tappet guides and discharge thereof through oil drainage holes aligned with portions of the corresponding cams of the camshaft, enables very reliable lubrication of the camshaft to be achieved and furthermore reduces to a minimum the inclusion of air in the lubricating oil.
As a modification, spout-like inserts may be 3S pressed into the oil drainage holes, the inserts consisting of thin walled tubes so that the ends constitute in effect sharp edges to ensure an aimed dripping of the lubricating oil onto the corresponding cams of the camshaft.
Other features include lubricating oil channels ~_ r ,.
' ~
~ 1~652~
connected from the tappet guides to those sections of the rocker arm stud mounting bores located above the screw-threads~ radial lubricating oil grooves on the rocker arm fulcrum bearing surface loaded by the nut, and lubrica-tion of the rocker arm lower bearing surface while avoidingoil splashes that cause air inclusions. Also, the area in the cylinder head that lies beneath the camshaft communi-cates by lubricating oil drainage orifices with oil return channelsr and~ therefore, eliminates the need for a camshaft lubricating oil sump.
Other features and advantages of the invention will become more apparent upon reference to the succeeding, detailed description thereof,, and to the drawings illustra-ting the preferred embodiments thereof; wherein, Figure 1 is a plan view of an internal combustion engine cylinder head embodying the invention, Figure 2 is a vertical cross-sectional view made along the line II-II in Figure 1, Figure 3 is an enlarged cross-sectional view Of a detail of Figure 2, Figure 3a is a cross-se~tional view of a modifica-tion of the Figure 2 showingL and Figure 4 is a vertical cross-sectional view made along the line III-III in Figure 1.
Referring to the drawings, Figures 1 and/or 2 illustrate a cylinder head 1 for an internal combustion engine that is formed with a hemispherically or dome-shaped combustion chamber 2, mutually communicating cooling medium spaces 3, intake and exhaust passages (only partly shown) located between the cooling spaces and controlled by intake and exhaust valves 4 and 5, respectively, and a spark plug bore accommodating a spark plug 6.
An overhead mounted camshaft 7 extends parallel to the longitudinal direction or axis of the internal combustion engine and is rotatably mounted in a plurality of camshaft bearing webs 8 (Figure 1), Adjacent to the camshaft bearing webs 8 are formed bridges 15 that span the camshaft 7 and extend from the bosses or projections that accommodate the valve stem guides 9 and 10, the rocker - 1~56~2'~
: 3a arm fulcrum mounting stud bores 11 and 12, and the tappet guldes 13 and 14.
Formed in the bridges 15 adjacent each of the tappet guides 13 and 14 are oil collector basins 16 and 17. The latter collect the excess lubricating oil that normally is exuded from the tappet guides 13 and 14 during reciprocation of the tappets. The tappets are supplied with oil from an oil pump, not shown., in a known manner.
- 1156~27 This oil from the tappet guides is discharged through oil discharge holes 18 (Figure 3) formed in each of the basins and vertically aligned with portions of the corresponding cams on the camshaft 7. Pressed into the oil discharge bores 18 may be oil passage inserts 19 that consist of a thin sheet metal tube or the like, the ends 22 of which project beyond the bottom wall of the bridge member. miS ensures an aimed dripping of the lubricating oil onto the corresponding cams of the camshaft 7.
The oil passage inserts 19 in this case may be constructed as a polygonal tube, for example, and have flared or funnel-like conical portions 21 at their upper ends and drip lip type edges 22 at their lower ends.
Figures 1 and 2 show that lubricating oil exuding from the top of the tappet guide bore 14 will run down the outsides of the cylinder head boss and accumulate in the oil collector basins 16 and 17. From there, it can drip through the oil passage inserts 19 onto the cams of the revolving camshaft 7. It will also be seen that the open area 23 extending beneath the camshaft 7 returns the lubricating oil in this area to the crankcase (not shown) through connecting lubricating oil return channels 24 and 24'.
An alternate construction of the invention is shown in Figure 3a in which a molded drip lip 18' is integrally shaped in the casting of the cylinder head in a manner to intersect the adjacent oil discharge bore 18 and thus form a drip edge. It is likewise possible to produce the oil passage inserts 19' (Figure 3) from a plastics material, in which case the inserts can be prevented from accidental falling out of or being displaced from the oil discharge bores 18 by one or more flexible retaining lips 20'.
Figure 4 illustrates a further feature of a cylinder head constructed according to the invention. In this case, the bore communicates with a lubricating oil channel 25 that connects to the screw-thread portion of the bore 26 in 1~56527 which is mounted the rocker arm fulcrum supporting stud 27.
The stud 27 screwed into bore 11 tensions, through a nut 28, the semi-cylindrical rocker arm bearing piece or fulcrum 29 against a step or offset 30 of the bore. Biased or forced against the rocker arm bearing piece 29 is a sheet metal rocker arm 31, one end of which is engaged by a hydraulic tappet 32, and the other end bearing against the stem of the valve 4. The lubrication of the semi-cylindrical surfaces between the rocker arm fulcrum 29 and the corresponding bushing in the sheet metal rocker arm 31 is particularly essential and is ensured according to the invention by radial lubricating oil yrooves 33 in the plane surface of the rocker arm fulcrum 29 at the point loaded by the nut 28. Due to the loading of the bore 11 of the stud 27 with lubricating oil under pressure, lubricating oil can cIimb up the central bore of the rocker arm bearing piece 29 and be guided at the nut 28 through the radial lubricating oil grooves 33 to the lateral portions of the rocker arm 31, from where it passes onto the bushing surfaces of the rocker arm 31.
From the foregoing, it will be seen that components of the valve gear of the internal combustion engine are adequately lubricated by specific measures so that the hitherto customary dip lubrication or oil splash lubrication method of lubrication can be abandoned, which will result in lubricating oil in the entire lubricating oil circuit of the internal combustion engine being kept as free as possible from air inclusions.
While the invention has been shown and described in its preferred embodiments, it will be clear to those skilled in the arts to which it pertains that many changes and modifications may be made thereto without departing from the scope of the invention.
The invention relates to a cylinder head for an internal combustion engine o~ the type having a hemispherically or dome-shaped combustion chamber with intake and exhaust valves arranged approximately radially to its surface. The valves are operable by sheet metal rocker arms actuated by tappets engaged directly with the cams of an overhead camshaft. The camshaft is arranged symetrically between the intake and exhaust valve trains. Bridges span the camshaft adjacent to the camshaft bearing webs, and are formed from the cylinder head projections or bosses that accommodate the valve stem guides, the rocker arm stud mounting holes, and the tappet guides.
A cylinder head of the type broadly described above is shown and described in U.S. Patent 3,164,143. In the patent, the area of the cylinder head extending beneath the camshaft is of a tank-shaped construction. This permits excess lubricating oil that runs off from the tappet guides, which generally are supplied with an excess of lubricating oil under pressure, to accumulate, forming a lubricating oil sump for the camshaft. The usual drainage orifices from this lubricating oil sump are located to provide an oil level build up that will assure the cam surfaces of the camshaft being wetted by the dip lubrication method. Lubrication of the rocker arm bearing pieces, therefore, in the patent is intended to be achieved by the splash oil occurring in the valve gear space.
In an internal combustion engine, if hydraulic valve tappets are adopted, which automatically compensate for play in the valve gear, then it is important to control the amount of air that is added to the lubricating oil delivered by the oil pump to the engine.
The lubrication of the valve gear of an internal combustion engine by pressure lubrication and dip and splash lubrication hitherto practiced leads inevitably to higher :~;
proportions of air in the lubricating oil, This results either in an impairment of effectiveness of the hydraulic valve tappets or, alternatively, the adoption of onerous measures to calm the lubricating oil~
In accordance with the present invention, there is provided a cylinder head for an internal combustion engine having a dome-shaped combustion chamber with intake and exhaust valves arranged approximately radial to the surface of the chamber and symmetrically located on opposite sides of a single overhead camshaft for individual actua-tion by one end of a rocker arm that is pivotally mounted to the head by a stud, the rocker arm being operably engaged at its opposite end by a tappet movable by the camshaft, and bridge members spanning the camshaft and providing mounting bores for the studs, and providing tappet guides slidably accommodating the tappets therein, the tappet guides receiving lubricating oil therein that is exuded from the guides during movement of the tappet by the camshaft, characterized byt an oil collecting basin adjacent a tappet guide fbr collecting oil exuded thererom, the basin having a discharge hole therein vertically aligned with a portion of a cam on the camshaft so as to drip oil on the cam to lubricate the cam.
The improved construction of a cylinder head Of the present invention eliminates the hitherto customar~
dip and splash lubrication of parts of the valve gear of the internal combustion engine. The collection of the lubricating oil exuding from the tappet guides and discharge thereof through oil drainage holes aligned with portions of the corresponding cams of the camshaft, enables very reliable lubrication of the camshaft to be achieved and furthermore reduces to a minimum the inclusion of air in the lubricating oil.
As a modification, spout-like inserts may be 3S pressed into the oil drainage holes, the inserts consisting of thin walled tubes so that the ends constitute in effect sharp edges to ensure an aimed dripping of the lubricating oil onto the corresponding cams of the camshaft.
Other features include lubricating oil channels ~_ r ,.
' ~
~ 1~652~
connected from the tappet guides to those sections of the rocker arm stud mounting bores located above the screw-threads~ radial lubricating oil grooves on the rocker arm fulcrum bearing surface loaded by the nut, and lubrica-tion of the rocker arm lower bearing surface while avoidingoil splashes that cause air inclusions. Also, the area in the cylinder head that lies beneath the camshaft communi-cates by lubricating oil drainage orifices with oil return channelsr and~ therefore, eliminates the need for a camshaft lubricating oil sump.
Other features and advantages of the invention will become more apparent upon reference to the succeeding, detailed description thereof,, and to the drawings illustra-ting the preferred embodiments thereof; wherein, Figure 1 is a plan view of an internal combustion engine cylinder head embodying the invention, Figure 2 is a vertical cross-sectional view made along the line II-II in Figure 1, Figure 3 is an enlarged cross-sectional view Of a detail of Figure 2, Figure 3a is a cross-se~tional view of a modifica-tion of the Figure 2 showingL and Figure 4 is a vertical cross-sectional view made along the line III-III in Figure 1.
Referring to the drawings, Figures 1 and/or 2 illustrate a cylinder head 1 for an internal combustion engine that is formed with a hemispherically or dome-shaped combustion chamber 2, mutually communicating cooling medium spaces 3, intake and exhaust passages (only partly shown) located between the cooling spaces and controlled by intake and exhaust valves 4 and 5, respectively, and a spark plug bore accommodating a spark plug 6.
An overhead mounted camshaft 7 extends parallel to the longitudinal direction or axis of the internal combustion engine and is rotatably mounted in a plurality of camshaft bearing webs 8 (Figure 1), Adjacent to the camshaft bearing webs 8 are formed bridges 15 that span the camshaft 7 and extend from the bosses or projections that accommodate the valve stem guides 9 and 10, the rocker - 1~56~2'~
: 3a arm fulcrum mounting stud bores 11 and 12, and the tappet guldes 13 and 14.
Formed in the bridges 15 adjacent each of the tappet guides 13 and 14 are oil collector basins 16 and 17. The latter collect the excess lubricating oil that normally is exuded from the tappet guides 13 and 14 during reciprocation of the tappets. The tappets are supplied with oil from an oil pump, not shown., in a known manner.
- 1156~27 This oil from the tappet guides is discharged through oil discharge holes 18 (Figure 3) formed in each of the basins and vertically aligned with portions of the corresponding cams on the camshaft 7. Pressed into the oil discharge bores 18 may be oil passage inserts 19 that consist of a thin sheet metal tube or the like, the ends 22 of which project beyond the bottom wall of the bridge member. miS ensures an aimed dripping of the lubricating oil onto the corresponding cams of the camshaft 7.
The oil passage inserts 19 in this case may be constructed as a polygonal tube, for example, and have flared or funnel-like conical portions 21 at their upper ends and drip lip type edges 22 at their lower ends.
Figures 1 and 2 show that lubricating oil exuding from the top of the tappet guide bore 14 will run down the outsides of the cylinder head boss and accumulate in the oil collector basins 16 and 17. From there, it can drip through the oil passage inserts 19 onto the cams of the revolving camshaft 7. It will also be seen that the open area 23 extending beneath the camshaft 7 returns the lubricating oil in this area to the crankcase (not shown) through connecting lubricating oil return channels 24 and 24'.
An alternate construction of the invention is shown in Figure 3a in which a molded drip lip 18' is integrally shaped in the casting of the cylinder head in a manner to intersect the adjacent oil discharge bore 18 and thus form a drip edge. It is likewise possible to produce the oil passage inserts 19' (Figure 3) from a plastics material, in which case the inserts can be prevented from accidental falling out of or being displaced from the oil discharge bores 18 by one or more flexible retaining lips 20'.
Figure 4 illustrates a further feature of a cylinder head constructed according to the invention. In this case, the bore communicates with a lubricating oil channel 25 that connects to the screw-thread portion of the bore 26 in 1~56527 which is mounted the rocker arm fulcrum supporting stud 27.
The stud 27 screwed into bore 11 tensions, through a nut 28, the semi-cylindrical rocker arm bearing piece or fulcrum 29 against a step or offset 30 of the bore. Biased or forced against the rocker arm bearing piece 29 is a sheet metal rocker arm 31, one end of which is engaged by a hydraulic tappet 32, and the other end bearing against the stem of the valve 4. The lubrication of the semi-cylindrical surfaces between the rocker arm fulcrum 29 and the corresponding bushing in the sheet metal rocker arm 31 is particularly essential and is ensured according to the invention by radial lubricating oil yrooves 33 in the plane surface of the rocker arm fulcrum 29 at the point loaded by the nut 28. Due to the loading of the bore 11 of the stud 27 with lubricating oil under pressure, lubricating oil can cIimb up the central bore of the rocker arm bearing piece 29 and be guided at the nut 28 through the radial lubricating oil grooves 33 to the lateral portions of the rocker arm 31, from where it passes onto the bushing surfaces of the rocker arm 31.
From the foregoing, it will be seen that components of the valve gear of the internal combustion engine are adequately lubricated by specific measures so that the hitherto customary dip lubrication or oil splash lubrication method of lubrication can be abandoned, which will result in lubricating oil in the entire lubricating oil circuit of the internal combustion engine being kept as free as possible from air inclusions.
While the invention has been shown and described in its preferred embodiments, it will be clear to those skilled in the arts to which it pertains that many changes and modifications may be made thereto without departing from the scope of the invention.
Claims (6)
1. A cylinder head for an internal combustion engine having a dome-shaped combustion chamber with intake and exhaust valves arranged approximately radial to the surface of the chamber and symetrically located on opposite sides of a single overhead camshaft for individual actuation by one end of a rocker arm that is pivotally mounted to the head by a stud, the rocker arm being operably engaged at its opposite end by a tappet movable by the camshaft, and bridge members spanning the camshaft and providing mounting bores for the studs, and providing tappet guides slidably accomodating the tappets therein, the tappet guides receiving lubricating oil therein that is exuded from the guides during movement of the tappet by the camshaft, characterized by, an oil collecting basin adjacent a tappet guide for collecting oil exuded therefrom, the basin having a discharge hole therein vertically aligned with a portion of a cam on the camshaft so as to drip oil on the cam to lubricate the cam.
2. A cylinder head according to Claim 1, characterized in that on the underside of the oil collector basin adjacent the hole the cylinder head is formed with a drip edge onto which the oil flows to ensure an aimed dripping of the lubricating oil onto a cam of the camshaft.
3. A cylinder head according to Claims 1 or 2, characterized in that the oil discharge hole receives therein a tubular insert defining an oil passage and having a flared upper end constructed as a conical funnel, and a lower edge constructed as a drip edge projecting out beyond the lower wall of the bridge member to ensure an aimed dripping of the lubricating oil onto a cam of the camshaft.
4. A cylinder head according to Claims 1 or 2, characterized in that the oil discharge hole receives therein an insert defining an oil passage that is secured against accidental withdrawal from the hole by a retaining lip, one end of the insert being formed to ensure an aimed dripping of the lubricating oil onto a cam of the camshaft.
5. A cylinder head according to Claims 1 or 2 including a lubricating oil channel connecting the tappet guide oil to a portion of the stud bore for lubricating the same, and the pivotal mounting of the rocker arm to the stud including fulcrum means, and a nut securing the fulcrum means to the stud, and a radial lubricating oil groove connecting the stud bore to the surface of the fulcrum means loaded by the nut.
6. A cylinder head according to Claims 1 or 2, characterized in that the portion of the head extending beneath the camshaft communicates through lubricating oil discharge orifices with a lubricating oil return channel removing the oil therein to other parts of the engine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19803009062 DE3009062C2 (en) | 1980-03-08 | 1980-03-08 | Cylinder head for an internal combustion engine |
| DEP3009062.1 | 1980-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1156527A true CA1156527A (en) | 1983-11-08 |
Family
ID=6096707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000363441A Expired CA1156527A (en) | 1980-03-08 | 1980-10-28 | Cylinder head for an internal-combustion engine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS56126608A (en) |
| CA (1) | CA1156527A (en) |
| DE (1) | DE3009062C2 (en) |
| GB (1) | GB2072746B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59136510A (en) * | 1983-01-26 | 1984-08-06 | Nissan Motor Co Ltd | Valve moving system supporting device of multi-cylinder internal combustion engine |
| DE4446488C1 (en) * | 1994-12-23 | 1996-06-05 | Daimler Benz Ag | Valve control for an internal combustion engine |
| DE102004050056A1 (en) * | 2004-10-14 | 2006-04-27 | Bayerische Motoren Werke Ag | Machine housing for internal combustion engine has housing which exhibits wall and in installed position, it exhibits one support and is subjected to lubricant whereby lubricant is arranged in sections at support |
| JP4625425B2 (en) * | 2006-05-22 | 2011-02-02 | 本田技研工業株式会社 | Cylinder head oil passage structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3164143A (en) * | 1964-03-11 | 1965-01-05 | Dolza John | Internal combustion engine |
| IT1047395B (en) * | 1975-10-09 | 1980-09-10 | Fiat Veicoli Ind | INTERNAL COMBUSTION ENGINE WITH V-CYLINDERS |
| DE2703519A1 (en) * | 1977-01-28 | 1978-08-03 | Bayerische Motoren Werke Ag | Cylinder head for IC engine - has lubricant chamber in camshaft bearing and connected to cam lubrication channels |
-
1980
- 1980-03-08 DE DE19803009062 patent/DE3009062C2/en not_active Expired
- 1980-10-28 CA CA000363441A patent/CA1156527A/en not_active Expired
- 1980-12-02 JP JP17019880A patent/JPS56126608A/en active Granted
-
1981
- 1981-03-09 GB GB8107318A patent/GB2072746B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2072746B (en) | 1983-08-10 |
| GB2072746A (en) | 1981-10-07 |
| DE3009062C2 (en) | 1982-09-16 |
| DE3009062A1 (en) | 1981-10-08 |
| JPH0122441B2 (en) | 1989-04-26 |
| JPS56126608A (en) | 1981-10-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |