GB2059503A - Fuel Supply Devices for Multi- cylinder Internal Combustion Engines - Google Patents
Fuel Supply Devices for Multi- cylinder Internal Combustion Engines Download PDFInfo
- Publication number
- GB2059503A GB2059503A GB8027905A GB8027905A GB2059503A GB 2059503 A GB2059503 A GB 2059503A GB 8027905 A GB8027905 A GB 8027905A GB 8027905 A GB8027905 A GB 8027905A GB 2059503 A GB2059503 A GB 2059503A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fuel injection
- fuel
- injection valve
- intake pipe
- intake
- 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.)
- Withdrawn
Links
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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/04—Injectors peculiar thereto
- F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
- F02M69/044—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the intake conduit downstream of an air throttle valve
-
- 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
- F02M61/145—Arrangements of injectors with respect to engines; Mounting of injectors the injection nozzle opening into the air intake conduit
-
- 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
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/14—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel having cyclically-operated valves connecting injection nozzles to a source of fuel under pressure during the injection period
- F02M69/145—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel having cyclically-operated valves connecting injection nozzles to a source of fuel under pressure during the injection period the valves being actuated electrically
Abstract
A fuel supply device includes a plurality of intake branch pipes 10 for connection to respective engine cylinders and opening to a joint portion 10a of an intake pipe 12, and a fuel injection valve 11 disposed just upstream of the joint portion 10a so as to face the openings of the intake branch pipes 10. The fuel injection valve 11 has nozzle ports 11b directed towards the openings 10b of the intake branch pipes 10. An attaching member 13 determines the angular position of the fuel injection valve 11 such that the nozzle ports 11b are directed towards the centres of the openings. <IMAGE>
Description
SPECIFICATION
Fuel Injection Devices for Multi-cylinder
Internal Combustion Engines
This invention relates to fuel injection devices for multi-cylinder internal combustion engines.
Previously proposed fuel injection devices for multi-cylinder engines have a fuel injection valve for each cylinder. Since the fuel injection valve is expensive, the cost of the fuel injection device as a whole is uneconomically raised due to the use of a multiplicity of fuel injection valves.
To obviate this problem, a fuel injection device has been proposed having a single fuel injection valve disposed at the upstream side of a joint portion where a plurality of intake branch pipes leading to respective cylinders gather and open, so that a plurality of cylinders are supplied with fuel from a single fuel injection valve. This arrangement, however, involves a problem, in that it is necessary that the fuel is distributed evenly to all intake branch pipes. The distribution of fuel to all cylinders is achieved to some extent by forming a plurality of nozzle ports in the fuel injection valves, but there still remain various problems unsolved.Namely, it is essential that the nozzle ports are positioned and directed towards the centre of the openings of respective branch pipes, for otherwise a part of the fuel injected from one nozzle port flows into the branch pipe associated with an adjacent nozzle port to hinder the desired uniform distribution of fuel. Also, the injected fuel tends to attach to the wall of the branch pipes due to deviation of the position of the nozzle ports. The fuel attaching to the wall of the branch pipe forms a film of liquid fuel to adversely affect the response characteristic of the engine in transient periods such as in acceleration and deceleration, and to deteriorate the stability of the engine operation during idling. In addition, the air-fuel ratio of the mixture fluctuates, so increasing the emission of noxious components of exhaust gas from the engine.
According to the present invention there is provided a fuel injection device for a multicylinder internal combustion engine having a plurality of intake branch pipes leading to respective cylinders and opening to a joint portion of an intake pipe, the device comprising: a fuel injection valve disposed just upstream of the joint portion so as to face the openings of said intake branch pipes said fuel injection valve having nozzle ports for injecting a fuel therethrough towards the openings of the corresponding intake branch pipes; and an attaching member through which said fuel injection valve is attached and fixed to said intake pipe, said attaching member having a function to determine the angular or rotational position of said fuel injection valve in relation to said intake passage such that said nozzle ports are directed substantially towards the centres of said openings of the corresponding intake branch pipes.
The invention will now be described by way of example with reference to the accompanying drawings, in which:
Fig. 1 is a perspective view of a first embodiment of the invention;
Fig. 2 is a longitudinal sectional view of a part of the embodiment of Fig. 1;
Fig. 3 is a sectional view taken along the line Ill-Ill in Fig. 2;
Figs. 4A and 4B are schematic plan views of modifications of the intake branch pipe of the first embodiment;
Fig. 5 is a longitudinal sectional view of a second embodiment of the invention;
Fig. 6 is a sectional view of a joint portion of intake branch pipes taken along the line VI--VI in
Fig. 5;
Fig. 1 is a plan view of an attaching member shown in Fig. 5; and
Fig. 8 is a sectional view of a nozzle portion of a fuel injection valve.
Referring first to Figs. 1 to 3 showing a first embodiment of the invention, a reference numeral
10 denotes intake branch pipes leading to respective cylinders of a four cylinder internal combustion engine and opening at openings 1 Oh to a joint portion 1 Oa of an intake pipe.A reference numeral 11 denotes a solenoid actuated fuel injection valve disposed in the intake pipe 12 at a portion of the latter just upstream from the joint portion 1 Oa to confront the openings 1 or. As will be understood also from Figs. 2, 3 and 8, four nozzle ports 1 b of an equal diameter are formed in the nozzle tip portion 1 a of the fuel injection valve 11 to correspond to the intake branch pipes 1 0. A valve seat 1 S for cooperation with a needle valve 1 V is disposed at the upstream side of the nozzle ports 1 b, as clearly seen from Fig. 8.An integral attaching member 1 3 for attaching the fuel injection valve 11 to the intake pipe 12 is secured to the intake pipe 12. This attaching member 13 is formed by a cup-shaped portion 1 3a for attaching and fitting the fuel injection valve 11 and a fuel passage portion 1 3b communicating with the cup-shaped portion and extending through the wall of the intake pipe 12. A bore for accommodating the nozzle tip portion 1 la is formed at the bottom of the cup-shaped member
1 3a. This bore has a shape similar to the crosssection of the nozzle tip 11 a.More specifically, the nozzle tip 1 a has a cross-sectional shape which is obtained by cutting a circle by parallel lines at its both sides, and the bore formed at the bottom of the cup-shaped portion 1 3a of the attaching member 13 has a similar shape to locate the angular position of the fuel injection valve 11 in relation to the intake pipe.In consequence, the nozzle ports 1 b of the fuel injection valve 11 are located correctly to oppose the centres of the openings 10 of the branch pipes and, in addition, the central axis of the opening of each nozzle port 1 b substantially coincides with the central axis of the branch pipe 1 0. At the same time, the fuel injection valve 11 is contained by the cup-shaped portion of the attaching member 1 3 and is pressed downwardly by a pin-shaped support spring 1 3c from the upper side thereof so as to be fixed in the axial direction.
The inlet port of the fuel passage portion 1 3b is connected to a fuel pump 14 through a suitable conduit while the outlet port is connected to a fuel pressure regulator also through a suitable conduit, so that the fuel coming from a fuel tank 16 flows through the fuel passage portion 1 3b at a suitable pressure under the control of the fuel pressure regulator 1 5. As shown in Fig. 2, a communication bore 1 1c is formed in the fuel injection valve 11 so that the fuel flowing through the fuel passage portion 1 3b comes into the fuel injection valve 11.The arrangement is such that the valve member is moved to open to permit the fuel to be injected from respective nozzle ports
1 lb as an electric pulse is applied to the solenoid coil (not shown) by an electronic control unit or circuit 20. A reference numeral 1 lddenotes an "0" ring which provides a seal between the fuel injection valve 11 and the cup-shaped portion
1 3a of the attaching member 13. A throttle valve
17 is disposed at the portion of the intake pipe 12 upstream of the fuel injection valve 11. A reference numeral 18 denotes a throttle sensor of a known construction and arranged to detect whether the throttle valve 1 7 is fully closed, in the idling position or opened to a large opening degree.A reference numeral 1 9 denotes an intake pressure sensor disposed at a portion of the intake pipe 12 between the throttle valve 17 and the intake branch pipes 10 so as to detect the intake pressure. A reference numeral 21 denotes a distributor of the ignition system and forming a rotation sensor.
The electronic control unit ECU 20 calculates the amount of fuel to be injected as the injection (electric) pulse width of the injection valve 11, using the signals from the rotary sensor 21 and the intake pressure sensor 19 as main parameters and signals representatives of engine cooling water temperature, intake air temperature and so forth as auxiliary parameters. Since this electronic control unit has a known construction, detailed description is omitted here. The output side of this electronic control circuit 20 is connected to the terminal 1 e of the injection valve 11 through lead wires.
In operation, as the electric pulse corresponding to the state of engine operation is applied by the electronic control circuit 20 to the fuel injection valve 11, a valve (not shown) is opened so that the fuel in the fuel passage portion 1 3b under a suitable pressure is injected from the nozzle ports 1 b towards the openings 1 Ob of the corresponding branch pipes 10.In this connection, it is to be noted that the fuel injected from each nozzle bore 1 1 b is supplied only to the corresponding branch pipe 10, because the angular position of the fuel injection valve is correctly located in relation to the intake pipe 12 by means of the attaching member 13, so that the fuel is distributed uniformly over all cylinders and, at the same time, the injected fuel flows substantially towards the centre of each opening 1 Ob of the branch pipe 10 so that the attaching of fuel to the wall of the branch pipe 10 is suppressed to diminish the fluctuation of air-fuel ratio in the transient period and during the idling.
Figs. 4A and 4B show the modifications of the shape of the intake branch pipe 10 of the first embodiment shown in Fig. 1. In Figs. 4A and 4B, the same reference numerals are used to denote the same member or parts as those of Figs. 1 to 3.
As in the case of the first embodiment, the fuel injection valves shown in Figs. 4A and 4B are attached perpendicularly to the plane of the sheet.
Fig. 5 shows a second embodiment of the invention which is different from the first embodiment in the shape of the fuel injection valve 111 and construction of the fuel passage portion 1 3b for introducing the fuel to the fuel injection valve 111, as well as the construction of the attaching member 113 for determining the angular or rotational position of the fuel injection valve 111. A communication passage portion 1 3b-1 for introducing the fuel to the upstream side end of the fuel injection valve 111 is formed beneath the fuel passage portion 1 3b which is formed integrally with the intake pipe 12.
As shown in Fig. 7, four arms 1 3d extend radially inwardly from an outer peripheral ring portion 1 3c towards the centre and an attaching portion 11 3e for fittingly receiving the nozzle tip 111 a of the fuel injection valve 111 is formed at the central portion in connection with the arms 11 3d. As in the case of the first embodiment, the attaching bore of the attaching portion 11 3e has the same cross-sectional shape as the crosssectional shape of the nozzle tip 1 1 1 a. A notch 1 3f for locating the fuel injection nozzle is formed at a portion of the outer peripheral ring portion 1 3c.As shown in Fig. 6, a ring-shaped supporting projection 1 Oc for supporting and mounting the attaching member 113 is formed at the inside of the joint portion 1 Oa of the intake branch pipes. The supporting projection 1 Oc is provided at the upper face thereof with a projection 1 Od for fittingly receiving the notched portion 1 1 3f. Thus, the attaching member 113 is attached to and supported by the supporting projection 1 Oc with its notch 1 3ffittingly receiving the projection 1 Od.Also, the nozzle tip 111 a of the injection valve 111 is fittingly received by the attaching bore of the attaching portion 11 3e formed at the centre of the attaching member 11 3, while the upper end of the fuel injection valve 111 is fitted to the communication passage portion 1 13h-1 of the fuel passage portion 1 3b, so that the fuel injection valve 111 is clamped and fixed between these two members. A buffer 111 f is between the upper end of the fuel injection valve 111 and the communication passage portion 1 3b-1, while another buffer 11 1g is interposed between the nozzle and the attaching member 113, so as to absorb axial displacement and impact. A reference numeral 111 d denotes an "0" ring for providing a seal between the injection valve 111 and the communication passage portion 1 3b-1.
Although not shown, four fuel injection nozzle ports are formed in the fuel injection valve 111 and are directed towards corresponding openings 1 Ob of the intake branch pipes, as in the case of the first embodiment. The operation is the same as that of the first embodiment.
Although the fuel injection device of the invention has been described as using solenoid actuated fuel injection valves, it is of course possible to use known fuel injection valve in which the rate of fuel injection is controlled by means of an orifice and the fuel is injected through a valve which is opened by the fuel pressure and continuously injects the fuel, in place of the solenoid actuated type valve.
As has been described, there is provided a fuel injection device for multi-cylinder engine having a plurality of intake branch pipes leading to respective cylinders and opening at a joint portion, comprising a fuel injection valve disposed just upstream of the joint portion to face the openings of the intake branch pipes, the fuel injection valve having nozzle ports for injecting the fuel therethrough towards the corresponding intake branch pipes; and an attaching member through which the fuel injection nozzle is attached and fixed to the intake pipe, the attaching member having a function to determine the angular or rotational position of the fuel injection valve in relation to the intake pipe such that the nozzle ports are positioned and directed substantially towards the openings of the corresponding intake branch pipes, so that the fuel is uniformly distributed to all cylinders and the attaching of the injected fuel to the wall of the intake branch pipes is suppressed to improve the response characteristic in the transient period, as well as the stability of idling operation, and to diminish the emission of noxious exhaust gas components.
Claims (11)
1. A fuel injection device for a multi-cylinder internal combustion engine having a plurality of intake branch pipes leading to respective cylinders and opening to a joint portion of an intake pipe, the device comprising: a fuel injection valve disposed just upstream of the joint portion so as to face the openings of said intake branch pipes"said fuel injection valve having nozzle ports for injecting a fuel therethrough towards the openings of the corresponding intake branch pipes; and an attaching member through which said fuel injection valve is attached and fixed to said intake pipe, said attaching member having a function to determine the angular or rotational position of said fuel injection valve in relation to said intake passage such that said nozzle ports are directed substantially towards the centres of said openings of the corresponding intake branch pipes.
2. A fuel injection device as claimed in claim 1, wherein said attaching member has an attaching portion for attaching said fuel injection valve and a fuel passage portion formed integrally with each other, said fuel passage portion extending through the wall of said intake pipe.
3. A fuel injection device as claimed in claim 1, wherein said attaching member has a portion for attaching said fuel injection valve and a fuel passage portion which are formed separately from each other, said fuel passage portion being formed to extend through the wall of said intake pipe while said attaching portion has an outer peripheral ring portion, a central ring portion and arm portions.
4. A fuel injection device as claimed in claim 1, wherein said intake branch pipes extending substantially perpendicularly to the axis of said injection valve.
5. A fuel injection device as claimed in claim 1, wherein said fuel injection valve includes a needle valve for controlling the flow of fuel towards said nozzle ports, said needle valve being disposed between said nozzle ports and a fuel inlet port formed at the upstream side of said nozzle ports.
6. A fuel injection device as claimed in claim 1, wherein said fuel injection valve is substantially cylindrical and the central axis thereof substantially coincides with that of said intake pipe, said fuel injection valve has a plurality of fuel inlet ports near to the end of said nozzle ports, is inserted in a cylindrical supporting member through 0-rings disposed at the portion of said intake pipe, and is pressed to said supporting member by using a pin-shaped support spring.
7. A fuel injection device as claimed in claim 1, wherein said fuel injection valve is substantially cylindrical and the central axis thereof substantially coincides with that of said intake pipe, said fuel injection valve has a fuel inlet on the opposite side of said nozzle ports, is inserted in a cylindrical supporting member through 0rings disposed at the joint portion of said intake pipe, and is fixed with a lower supporting member.
8. A fuel injection device as claimed in claim 7, wherein said intake pipe has a ring-shaped supporting projection for supporting and mounting said attaching member provided at the upper face thereof with a projection for fittingly receiving the notched portion.
9. A fuel injection device for a multi-cylinder internal combustion engine, the device being substantially as hereinbefore described with reference to Figs. 1 to 3 and 8 of the accompanying drawings.
10. A fuel injection device for a multi-cylinder internal combustion engine, the device being substantially as hereinbefore described with reference to Figs. 1 to 3 and 8 as modified by Fig.
4A or Fig. 48 of the accompanying drawings.
11. A fuel injection device for a multi-cylinder internal combustion engine, the device being substantially as hereinbefore described with reference to Figs. 5 to 7 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11750879A JPS5641452A (en) | 1979-09-12 | 1979-09-12 | Fuel injection device of multicylinder internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2059503A true GB2059503A (en) | 1981-04-23 |
Family
ID=14713486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8027905A Withdrawn GB2059503A (en) | 1979-09-12 | 1980-08-28 | Fuel Supply Devices for Multi- cylinder Internal Combustion Engines |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5641452A (en) |
| DE (1) | DE3033728A1 (en) |
| GB (1) | GB2059503A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0098549A1 (en) * | 1982-07-02 | 1984-01-18 | Hitachi, Ltd. | Fuel injection system |
| EP0104508A1 (en) * | 1982-09-28 | 1984-04-04 | WEBER S.p.A. | Electronic fuel injection system for internal combustion engines |
| GB2148388A (en) * | 1983-10-25 | 1985-05-30 | Lucas Ind Plc | Electromagnetic gasoline injector |
| GB2173859A (en) * | 1985-04-15 | 1986-10-22 | Ford Motor Co | Air assist fuel distribution type i.c. engine fuel injection system |
| EP0242978A1 (en) * | 1986-04-24 | 1987-10-28 | General Motors Corporation | Dual spray cone electromagnetic fuel injector |
| EP0321313A2 (en) * | 1987-12-18 | 1989-06-21 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Internal combustion engine for a vehicle |
| EP0392550A2 (en) * | 1989-04-13 | 1990-10-17 | Yamaha Hatsudoki Kabushiki Kaisha | Internal combustion engine and method for controlling fuel injection of same |
| USRE33841E (en) * | 1986-04-24 | 1992-03-10 | General Motors Corporation | Dual spray cone electromagnetic fuel injector |
| GB2315814A (en) * | 1996-07-30 | 1998-02-11 | Hitachi Ltd | A low pressure multi-point fuel injector valve located in an intake manifold of an internal combustion engine |
| GB2316448A (en) * | 1996-08-20 | 1998-02-25 | Hitachi Ltd | An intake manifold with single point fuel injection |
| CN1056912C (en) * | 1995-07-19 | 2000-09-27 | 株式会社日立制作所 | Fuel jetting method for internal combustion engine, device and fuel jetting valve therefor |
| CN1057819C (en) * | 1995-09-07 | 2000-10-25 | 株式会社日立制作所 | Fuel feeding method and device for multi-cylinder I.C engine |
| CN1089858C (en) * | 1995-09-07 | 2002-08-28 | 株式会社日立制作所 | Fuel supply device for IC engine and fuel supply method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58167766U (en) * | 1982-05-04 | 1983-11-09 | 日本電子機器株式会社 | Internal combustion engine fuel supply system |
| DE3227181A1 (en) * | 1982-07-21 | 1984-01-26 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Fuel injection device for a mixture-compressing, spark-ignition internal combustion engine |
| DE3345345A1 (en) * | 1983-12-15 | 1985-06-27 | Volkswagenwerk Ag, 3180 Wolfsburg | Fuel injection device |
| EP0220179B1 (en) * | 1984-07-13 | 1988-06-08 | Volkswagen Aktiengesellschaft | Device for continuous fuel injection |
| JPS6248959A (en) * | 1985-08-28 | 1987-03-03 | Hitachi Ltd | Less-point type fuel injection device |
-
1979
- 1979-09-12 JP JP11750879A patent/JPS5641452A/en active Pending
-
1980
- 1980-08-28 GB GB8027905A patent/GB2059503A/en not_active Withdrawn
- 1980-09-08 DE DE19803033728 patent/DE3033728A1/en not_active Ceased
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0098549A1 (en) * | 1982-07-02 | 1984-01-18 | Hitachi, Ltd. | Fuel injection system |
| EP0104508A1 (en) * | 1982-09-28 | 1984-04-04 | WEBER S.p.A. | Electronic fuel injection system for internal combustion engines |
| GB2148388A (en) * | 1983-10-25 | 1985-05-30 | Lucas Ind Plc | Electromagnetic gasoline injector |
| GB2173859A (en) * | 1985-04-15 | 1986-10-22 | Ford Motor Co | Air assist fuel distribution type i.c. engine fuel injection system |
| EP0242978A1 (en) * | 1986-04-24 | 1987-10-28 | General Motors Corporation | Dual spray cone electromagnetic fuel injector |
| USRE33841E (en) * | 1986-04-24 | 1992-03-10 | General Motors Corporation | Dual spray cone electromagnetic fuel injector |
| EP0321313A2 (en) * | 1987-12-18 | 1989-06-21 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Internal combustion engine for a vehicle |
| EP0321313A3 (en) * | 1987-12-18 | 1990-04-11 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Internal combustion engine for a vehicle |
| EP0392550A3 (en) * | 1989-04-13 | 1991-05-08 | Yamaha Hatsudoki Kabushiki Kaisha | Internal combustion engine and method for controlling fuel injection of same |
| EP0392550A2 (en) * | 1989-04-13 | 1990-10-17 | Yamaha Hatsudoki Kabushiki Kaisha | Internal combustion engine and method for controlling fuel injection of same |
| CN1056912C (en) * | 1995-07-19 | 2000-09-27 | 株式会社日立制作所 | Fuel jetting method for internal combustion engine, device and fuel jetting valve therefor |
| CN1057819C (en) * | 1995-09-07 | 2000-10-25 | 株式会社日立制作所 | Fuel feeding method and device for multi-cylinder I.C engine |
| CN1089858C (en) * | 1995-09-07 | 2002-08-28 | 株式会社日立制作所 | Fuel supply device for IC engine and fuel supply method |
| GB2315814A (en) * | 1996-07-30 | 1998-02-11 | Hitachi Ltd | A low pressure multi-point fuel injector valve located in an intake manifold of an internal combustion engine |
| GB2315814B (en) * | 1996-07-30 | 1998-11-11 | Hitachi Ltd | Fuel injection valve,fuel injection apparatus for an intenal combustion engine,and engine system |
| GB2316448A (en) * | 1996-08-20 | 1998-02-25 | Hitachi Ltd | An intake manifold with single point fuel injection |
| GB2316448B (en) * | 1996-08-20 | 1999-01-06 | Hitachi Ltd | Apparatus for forming air fuel mixture for internal combustion engine and engine system |
| CN1092759C (en) * | 1996-08-20 | 2002-10-16 | 株式会社日立制作所 | Apparatus for forming air-fuel mixture for internal combustion engine and engine system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3033728A1 (en) | 1981-03-26 |
| JPS5641452A (en) | 1981-04-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |