US3832983A - Cylinder head for an internal combustion engine - Google Patents
Cylinder head for an internal combustion engine Download PDFInfo
- Publication number
- US3832983A US3832983A US00226720A US22672072A US3832983A US 3832983 A US3832983 A US 3832983A US 00226720 A US00226720 A US 00226720A US 22672072 A US22672072 A US 22672072A US 3832983 A US3832983 A US 3832983A
- Authority
- US
- United States
- Prior art keywords
- side face
- inlet
- conduits
- cylinder
- valves
- 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
- 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
- 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
- COMBUSTION ENGINE [76] Inventor: Jean Nickly, 2 rue Le Royer, Lyon 3 Attqrney or F m -wemer Basile and Wemtraub (Rhone), France v 22' Filed: Feb. 16, 1972 [57] ABSTRACT A cylinder head for an internal combustion engine, adapted to fit two or more adjacent cylinders, is pro- ⁇ 211 Appl. No.2 226,720
- each of the inlets is provided with a specific configuration such that the flow of UNITED STATES PATENTS .5/1943 .8/1964 I gases about each inlet valve is substantially equal.
- the I Anderson et va1. outlets have a common partition which terminates short of the second side face such that they merge into 123/302 l23/l88 M 23/188 M X a single outlet proximate the second side face.
- CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE two outlet valves.
- the inlet valves open onto' air inlet conduits which lead to one of the de faces of the cylinder head, while H'iifiil'i conduits 15561653 M opposite side face.
- the aim of the present invention is to provide a cylinder head suitable for use with an engine having several cylinders.
- the cylinder heads have the advantage of forming units that can be placed next to one another for the manufacture of in-line enginesor of V-engines.
- the invention aims at creating a cylinder; head where the flow of gases in the inletand outlet conduits leads to turbulence in the cylinder resulting in an improvement in engine performance.
- a cylinder head to fit two or more adjacent cylinders of a diesel engine, each cylinder having four valves grouped around acentralinjector.
- the head includes. inlet conduits which all open on the same side face thereof and outlet conduits which all open on the opposite side face. All the inlet conduits extend from the base of a common depression in the first mentioned side face, one of the conduits associated with each cylinder having a rectilinear section substantially perpendicular to the first mentioned side face and the other inlet conduit of this same cylinder having arectilinear. section which is inclined to this side face.
- inlet conduits which all open on the same side face thereof
- outlet conduits which all open on the opposite side face. All the inlet conduits extend from the base of a common depression in the first mentioned side face, one of the conduits associated with each cylinder having a rectilinear section substantially perpendicular to the first mentioned side face and the other inlet conduit of this same cylinder having arectilinear. section which is inclined to
- the arrangement of the inlet conduits is such that the; inclined rectilinear section of the inlet conduit of one cylinder is adjacent and converges towards the rectilinear section of the adjacent cylinder.
- two exhaust conduits for each cylinder aie's sar'atedb 'a partition wlTicl'iterini nates short or the said opposite side face of the cylinder head, whereby the two exhaust conduits inergeinto a single outlet opening at the opposite side face.
- FIG. 1 is a perspective view showing in diagrammatic form the lower face of a cylinder with the invention.
- FIG. 2 is a section along the line II 'II in FIG. 1.
- a cylinder head 1 represented in the drawings is de-'- signed-to fit two adjoining cylinders of a diesel engine. It includes two housings 101 and 201, each adapted to receive, in the usual way an injector.
- the injector will be situated 'in the center of its cylinder and perpendicular to the plane of the lower plane face 2 of-the Four valves, namely two inlet and two exhaust valves, are arranged around the housing 101.
- the bores to rece'ive the guides of the stems of the inlet valves are designated by the reference numbers 102 and 103, while the bores for the guides of thestems of the exhaust valves are designatedby the reference numbers 104 and 105.
- the recesses for the inlet valves open at the head in. accordance plane face 2 onto valve seats 106 and 107, while the recesses for the outlet valves open on to the valve seats 108 andl09.
- valves around the housing 201 for the injector of the second cylinder is inferred by transfer from the position of the valves aroundthe' housing 101 for the injector of the first cylinder.
- the bores 104 and 105 of the exhaust valves of one cylinder are next to the bores 202 and 203 of the inlet valves of the other cylinder.
- the cylinder head 1 has two opposite side faces 3 and 4. These two faces are planes. All'the inlet conduits open onto face 3, while all the outlet conduits open onto face 4. I i
- Flow in to the valve of the 'bore 103, which is the most distant from the face 3 takes place through a conduit having a rectilinear section 110 substantially perpendicular to the face 3 followed by an incurved section 111 which provfifes a turbulence in'the flow of gases around the housing 101 before the gases enter the cylinder.
- the flow into the valve of the bore 102 takes place through a conduit which offers a first rectilinear section 112 inclined to the face 3 followed by an S-shaped section 113 and which imparts to the gases before entry into the cylinder, a speed of flow corresponding to a turbulence in the same direction as before, turning around the injector of the housing 101.
- the inlet conduit to the valve furthest from face 3 has a rectilinear section 210 perpendicular to face3, followed by a section shaped in the arc of a circle 211
- a depression 5 is provided on face 3 of the cylinder head. This depression 5 serves-as an inlet manifold from which lead the four initial sections 2 12 02 1 9? the.i let s nduitsnli mslbe fest inlet conduits do'not open directly onto the face 3 of the cylinder head, but arerecessedon the base ofthe depression 5. r
- a diesel engine of the type having a plurality of cylinders each comprising a central injector and two axially spaced apart inlet valves and two axially spaced apart outlet valves, the four valves being grouped around the injector, a cylinder head to fit two or more adjacent cylinders comprising:
- each of the cylinders two inlet conduits, all of the inlet conduits being open to a firstside face of the head, the first side face being provided with a common depression having a base, each ofthe inlet conduits extending from the base of thecommon depression,
- the inlet conduit associated with the inlet valve most distant from the first side face includes a first rectilinear section substantially perpendicular to the first side face and a second curvilinear section which provides turbulence around the housing of the injector, the inlet conduit associated with the inlet valve closest to the first side face has a first rectilinear section inclined to the first side face fol-- lowed by an S-shaped section such that the flow of gases about each inlet valve of the cylinder is substantially equal and the inlet conduit of the inlet valve closest to the first side face associated with a first cylinder being adjacent to the inlet conduit of the inlet valve most
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
A cylinder head for an internal combustion engine, adapted to fit two or more adjacent cylinders, is provided with, for each cylinder, two spaced apart inlet valves and outlet valves grouped around a central injector. The inlets extend from a first side face of the head, which is provided with a common depression, while the outlets open onto a second side face opposite the first side face. Each of the inlets is provided with a specific configuration such that the flow of gases about each inlet valve is substantially equal. The outlets have a common partition which terminates short of the second side face such that they merge into a single outlet proximate the second side face. Further, the present invention contemplates analogously configured adjacent cylinders.
Description
m1 3,832,983 se 3, 1974 Primary Examiner-Charles J. Myhre CYLINDER HEAD FOR AN INTERNAL Assistant ExaminerWilliam Rutledge, Jr.
COMBUSTION ENGINE [76] Inventor: Jean Nickly, 2 rue Le Royer, Lyon 3 Attqrney or F m -wemer Basile and Wemtraub (Rhone), France v 22' Filed: Feb. 16, 1972 [57] ABSTRACT A cylinder head for an internal combustion engine, adapted to fit two or more adjacent cylinders, is pro- {211 Appl. No.2 226,720
vided with, foreach cylinder, two spaced apart inlet valves and outlet valves grouped-around a central in- [52] US. Cl. 123/75 B, 123/188 M, 123/193 H [51] Int. F02m 35/10 123/188 M 75 B 30 ector. The inlets extend from a first side face of the [58] Field 0f.Search............
head, which is provided with a common depression,
while the outlets open onto a second side face oppo- References Cited site the first side face. Each of the inlets is provided with a specific configuration such that the flow of UNITED STATES PATENTS .5/1943 .8/1964 I gases about each inlet valve is substantially equal. The I Anderson et va1. outlets have a common partition which terminates short of the second side face such that they merge into 123/302 l23/l88 M 23/188 M X a single outlet proximate the second side face. Fur- Akana........................ 123/188 M 2,318,915 I 3,145,696 Baster 3,335,707 8/1967 Heinrich... 3,411,490 11/1968 ther, the present invention contemplates analogously configured adjacent cylinders.
4 1 Claim, 2 Drawing Figures PATENTEB SEP 3 I974 SNEEI 1 BF 2 cylinder head 1.
CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE two outlet valves. The inlet valves open onto' air inlet conduits which lead to one of the de faces of the cylinder head, while H'iifiil'i conduits 15561653 M opposite side face.
The aim of the present invention is to provide a cylinder head suitable for use with an engine having several cylinders.
The cylinder heads have the advantage of forming units that can be placed next to one another for the manufacture of in-line enginesor of V-engines.
Moreover, the invention aims at creating a cylinder; head where the flow of gases in the inletand outlet conduits leads to turbulence in the cylinder resulting in an improvement in engine performance.
According to the present invention there is provideda cylinder head to fit two or more adjacent cylinders of a diesel engine, each cylinder having four valves grouped around acentralinjector. The head includes. inlet conduits which all open on the same side face thereof and outlet conduits which all open on the opposite side face. All the inlet conduits extend from the base of a common depression in the first mentioned side face, one of the conduits associated with each cylinder having a rectilinear section substantially perpendicular to the first mentioned side face and the other inlet conduit of this same cylinder having arectilinear. section which is inclined to this side face. Preferably,
the arrangement of the inlet conduits is such that the; inclined rectilinear section of the inlet conduit of one cylinder is adjacent and converges towards the rectilinear section of the adjacent cylinder.
Preferably, two exhaust conduits for each cylinder aie's sar'atedb 'a partition wlTicl'iterini nates short or the said opposite side face of the cylinder head, whereby the two exhaust conduits inergeinto a single outlet opening at the opposite side face.
The invention will be described further, by way of example, with reference to the accompanying drawings, in which: j
FIG. 1 is a perspective view showing in diagrammatic form the lower face of a cylinder with the invention, and
FIG. 2 is a section along the line II 'II in FIG. 1.
A cylinder head 1 represented in the drawings is de-'- signed-to fit two adjoining cylinders of a diesel engine. It includes two housings 101 and 201, each adapted to receive, in the usual way an injector. The injector will be situated 'in the center of its cylinder and perpendicular to the plane of the lower plane face 2 of-the Four valves, namely two inlet and two exhaust valves, are arranged around the housing 101. The bores to rece'ive the guides of the stems of the inlet valves are designated by the reference numbers 102 and 103, while the bores for the guides of thestems of the exhaust valves are designatedby the reference numbers 104 and 105. The recesses for the inlet valves open at the head in. accordance plane face 2 onto valve seats 106 and 107, while the recesses for the outlet valves open on to the valve seats 108 andl09.
In the same way there are provided around the housing 201 bores 202 and 203 for the-inlet valves, and bores 204 and 205 for the exhaust valves. These bores cooperate with inlet valve seats 206 and 20 and with exhaust'valve seats 208 and 209.
It will be noticed that the arrangement of the valves around the housing 201 for the injector of the second cylinder is inferred by transfer from the position of the valves aroundthe' housing 101 for the injector of the first cylinder. In other words, in the central area of the cylinder head, the bores 104 and 105 of the exhaust valves of one cylinder are next to the bores 202 and 203 of the inlet valves of the other cylinder.
There will now be described in greater detail, the arrangement'of the inlet and outlet conduits for the cylinder associated with the housing 101, it being clearly .un-
=derstood that the arrangement is identical for the inlet and outlet conduits of the other cylinder.
I The cylinder head 1 has two opposite side faces 3 and 4. These two faces are planes. All'the inlet conduits open onto face 3, while all the outlet conduits open onto face 4. I i
Flow in to the valve of the 'bore 103, which is the most distant from the face 3 takes place through a conduit having a rectilinear section 110 substantially perpendicular to the face 3 followed by an incurved section 111 which provfifes a turbulence in'the flow of gases around the housing 101 before the gases enter the cylinder. On the other hand, the flow into the valve of the bore 102. takes place through a conduit which offers a first rectilinear section 112 inclined to the face 3 followed by an S-shaped section 113 and which imparts to the gases before entry into the cylinder, a speed of flow corresponding to a turbulence in the same direction as before, turning around the injector of the housing 101. s
The arrangement is similar in the case of the other cylinder. Thus the inlet conduit to the valve furthest from face 3 has a rectilinear section 210 perpendicular to face3, followed by a section shaped in the arc of a circle 211 The flow into the other valve talcesplace through a rectilinear section 212 inclined to the face 3 followed by an S-shaped section 213.
A depression 5 is provided on face 3 of the cylinder head. This depression 5 serves-as an inlet manifold from which lead the four initial sections 2 12 02 1 9? the.i let s nduitsnli mslbe fest inlet conduits do'not open directly onto the face 3 of the cylinder head, but arerecessedon the base ofthe depression 5. r
1 In addition, it can be seen that the rectilinear sections 112 and 210 are adjacent and-converge towards the base 6 of the depression 5.;
Exhaust takes place below the two valves of the'bores' 104 and 105, byway of two rectilinear conduits 114 and l 15 separated by a partition 116 whose free end is located below the face 4; In other words, the two outlet conduits ll4-and of the same cylinder are already merged into-a single conduit 118 which extends over a length 117 before it opens'on tothe face 4. It is therefore the single conduit 118 which opens onto the exhaust face 4 of the cylinder head.
I The arrangement is similar for the other. cylinder, with the one difference that thetwo-outlet conduits 214 cylinders. It will be realized that the invention is not limited to a head common to two cylinders and that the cylinder head can be extended and applied to more than two cylinders.
I claim: 1. In a diesel engine of the type having a plurality of cylinders each comprising a central injector and two axially spaced apart inlet valves and two axially spaced apart outlet valves, the four valves being grouped around the injector, a cylinder head to fit two or more adjacent cylinders comprising:
a. for each of the cylinders two inlet conduits, all of the inlet conduits being open to a firstside face of the head, the first side face being provided with a common depression having a base, each ofthe inlet conduits extending from the base of thecommon depression,
b. for each of the cylinders two outlet conduits, each being associated with an outlet valve, the conduits opening to a second side face of the head, the second side face being opposite to the first side face, a common partition between the each of the two outlet conduits, the partition terminating short of the second side face such that the two conduits merge into a single conduit proximate the second side face, and wherein the inlet conduit associated with the inlet valve most distant from the first side face includes a first rectilinear section substantially perpendicular to the first side face and a second curvilinear section which provides turbulence around the housing of the injector, the inlet conduit associated with the inlet valve closest to the first side face has a first rectilinear section inclined to the first side face fol-- lowed by an S-shaped section such that the flow of gases about each inlet valve of the cylinder is substantially equal and the inlet conduit of the inlet valve closest to the first side face associated with a first cylinder being adjacent to the inlet conduit of the inlet valve most distant from the first side face of a second cylinder, the adjacent inlet conduits converging towards the base of the common depression. v 1 g
Claims (1)
1. In a diesel engine of the type having a plurality of cylinders each comprising a central injector and two axially spaced apart inlet valves and two axially spaced apart outlet valves, the four valves being grouped around the injector, a cylinder head to fit two or more adjacent cylinders comprising: a. for each of the cylinders two inlet conduits, all of the inlet conduits being open to a first side face of the head, the first side face being provided with a common depression having a base, each of the inlet conduits extending from the base of the common depression, b. for each of the cylinders two outlet conduits, each being associated with an outlet valve, the conduits opening to a second side face of the head, the second side face being opposite to the first side face, a common partition between the each of the two outlet conduits, the partition terminating short of the second side face such that the two conduits merge into a single conduit proximate the second side face, and wherein c. the inlet conduit associated with the inlet valve most distant from the first side face includes a first rectilinear section substantially perpendicular to the first side face and a second curvilinear section which provides turbulence around the housing of the injector, the inlet conduit associated with the inlet valve closest to the first side face has a first rectilinear section inclined to the first side face followed by an S-shaped section such that the flow of gases about each inlet valve of the cylinder is substantially equal and the inlet conduit of the inlet valve closest to the first side face associated with a first cylinder being adjacent to the inlet conduit of the inlet valve most distant from the first side face of a second cylinder, the adjacent inlet conduits converging towards the base of the common depression.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00226720A US3832983A (en) | 1972-02-16 | 1972-02-16 | Cylinder head for an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00226720A US3832983A (en) | 1972-02-16 | 1972-02-16 | Cylinder head for an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
US3832983A true US3832983A (en) | 1974-09-03 |
Family
ID=22850123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00226720A Expired - Lifetime US3832983A (en) | 1972-02-16 | 1972-02-16 | Cylinder head for an internal combustion engine |
Country Status (1)
Country | Link |
---|---|
US (1) | US3832983A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3044516A1 (en) * | 1979-12-18 | 1981-09-17 | Cummins Engine Co., Inc., 47201 Columbus, Ind. | ROCKER ARM HOUSING FOR COMBUSTION ENGINE |
US4343268A (en) * | 1979-06-07 | 1982-08-10 | Cummins Engine Company, Inc. | Energy conserving exhaust passage for an internal combustion engine |
EP0173296A2 (en) * | 1984-08-28 | 1986-03-05 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Cylinder head of a liquid cooled diesel engine |
US4945873A (en) * | 1988-12-02 | 1990-08-07 | Avl Gesellschaft Fur Verbrennungskraftmaschinen Und Messtechnik M.B.H. Prof. Dr.Dr.H.C. Hans List | Internal combustion engine with two inlet valves per cylinder |
US5150677A (en) * | 1990-08-16 | 1992-09-29 | Nissan Motor Co., Ltd. | Direct injection diesel engine |
US5299540A (en) * | 1991-07-02 | 1994-04-05 | Saab Scania Aktiebolag | Arrangement for a fuel line in an internal combustion engine |
EP0634571A1 (en) * | 1993-05-18 | 1995-01-18 | Mazda Motor Corporation | Intake apparatus of diesel engine |
US5927246A (en) * | 1995-10-17 | 1999-07-27 | C.R.F. Societa Consortile Per Azion | Internal combustion Diesel engine for motor-vehicles, with direct injection |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2318915A (en) * | 1941-07-26 | 1943-05-11 | American Locomotive Co | Internal combustion engine |
US3145696A (en) * | 1962-08-31 | 1964-08-25 | White Motor Co | Internal combustion engine |
US3335707A (en) * | 1964-04-25 | 1967-08-15 | Motoren Werke Mannheim Ag | Internal combustion engines |
US3411490A (en) * | 1966-12-09 | 1968-11-19 | White Motor Corp | Intake port structure for internal combustion engine |
-
1972
- 1972-02-16 US US00226720A patent/US3832983A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2318915A (en) * | 1941-07-26 | 1943-05-11 | American Locomotive Co | Internal combustion engine |
US3145696A (en) * | 1962-08-31 | 1964-08-25 | White Motor Co | Internal combustion engine |
US3335707A (en) * | 1964-04-25 | 1967-08-15 | Motoren Werke Mannheim Ag | Internal combustion engines |
US3411490A (en) * | 1966-12-09 | 1968-11-19 | White Motor Corp | Intake port structure for internal combustion engine |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4343268A (en) * | 1979-06-07 | 1982-08-10 | Cummins Engine Company, Inc. | Energy conserving exhaust passage for an internal combustion engine |
DE3044516A1 (en) * | 1979-12-18 | 1981-09-17 | Cummins Engine Co., Inc., 47201 Columbus, Ind. | ROCKER ARM HOUSING FOR COMBUSTION ENGINE |
US4345552A (en) * | 1979-12-18 | 1982-08-24 | Cummins Engine Company, Inc. | Rocker housing and rocker cover |
EP0173296A2 (en) * | 1984-08-28 | 1986-03-05 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Cylinder head of a liquid cooled diesel engine |
DE3431494A1 (en) * | 1984-08-28 | 1986-03-13 | Klöckner-Humboldt-Deutz AG, 5000 Köln | CYLINDER HEAD OF A LIQUID-COOLED DIESEL INTERNAL COMBUSTION ENGINE |
EP0173296A3 (en) * | 1984-08-28 | 1987-03-11 | Klockner-Humboldt-Deutz Aktiengesellschaft | Cylinder head of a liquid cooled diesel engine |
US4945873A (en) * | 1988-12-02 | 1990-08-07 | Avl Gesellschaft Fur Verbrennungskraftmaschinen Und Messtechnik M.B.H. Prof. Dr.Dr.H.C. Hans List | Internal combustion engine with two inlet valves per cylinder |
US5150677A (en) * | 1990-08-16 | 1992-09-29 | Nissan Motor Co., Ltd. | Direct injection diesel engine |
US5299540A (en) * | 1991-07-02 | 1994-04-05 | Saab Scania Aktiebolag | Arrangement for a fuel line in an internal combustion engine |
EP0634571A1 (en) * | 1993-05-18 | 1995-01-18 | Mazda Motor Corporation | Intake apparatus of diesel engine |
US5927246A (en) * | 1995-10-17 | 1999-07-27 | C.R.F. Societa Consortile Per Azion | Internal combustion Diesel engine for motor-vehicles, with direct injection |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4615324A (en) | Exhaust gas recirculation system for a V-type engine | |
US4538574A (en) | Supercharged internal combustion engine with a cylinder head having four valves per cylinder | |
US4809647A (en) | Intake system for multi cylindered engine | |
US4702203A (en) | Intake means of internal combustion engine | |
US4765285A (en) | Intake system for internal combustion engine | |
EP0353989A3 (en) | Cylinder head structure for plural cylinder engines | |
GB1191572A (en) | A Compression-Ignition Type Engine. | |
US3832983A (en) | Cylinder head for an internal combustion engine | |
US5056472A (en) | 4-cycle 12-cylinder engine | |
US3274981A (en) | Cylinder heads for internal combustion engines | |
US4627400A (en) | Porting system for internal combustion engine | |
DE3061962D1 (en) | A multi cylinder internal combustion engine | |
US4328854A (en) | Casting core for an intake pipe assembly for an internal combustion engine | |
US3861375A (en) | Cylinder head for a diesel engine | |
US4628879A (en) | Engine intake system | |
US3488944A (en) | Exhaust manifold | |
US4744342A (en) | Intake port structure for an internal combustion engine | |
GB2134179A (en) | Intake system of an i.c. engine having a plurality of intake valves per cylinder | |
US4945873A (en) | Internal combustion engine with two inlet valves per cylinder | |
US4170203A (en) | Intake and exhaust manifolds | |
GB2203487A (en) | A fuel injection system component | |
US3037493A (en) | Intake manifold | |
US3424143A (en) | Cylinder head for internal combustion engines | |
US4470377A (en) | Intake manifold for an internal-combustion engine with spark ignition | |
JPH0147607B2 (en) |