CN209163946U - A kind of bi-block engine electric injection system - Google Patents
A kind of bi-block engine electric injection system Download PDFInfo
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- CN209163946U CN209163946U CN201821529586.0U CN201821529586U CN209163946U CN 209163946 U CN209163946 U CN 209163946U CN 201821529586 U CN201821529586 U CN 201821529586U CN 209163946 U CN209163946 U CN 209163946U
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- electric injection
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Abstract
A kind of bi-block engine electric injection system, including air throttle, fuel injector, inlet manifold, ECU board and lower cover, one end of the inlet manifold is connect with the air throttle, the other end of the inlet manifold is divided into two air inlet branch roads, the end of each air inlet branch road is mounted on the fuel injector, the lower cover is connect with the air throttle, the air throttle includes throttle body, throttle blade and throttle plate pin, throttle bore is provided in the throttle body, the throttle blade is mounted in the throttle bore by the throttle plate pin, the both ends of the throttle bore are connected to air inlet respectively, the bore ecto-entad of the air inlet is gradually reduced, the ECU board is mounted on the bottom end of the throttle body, the ECU board is connect by harness with multiple sensors of the fuel injector and engine, the lower cover buckle It closes in the bottom end of the throttle body.Fuel oil needed for the utility model accurately controls each operating condition of engine, drop row and oil-saving effect are more obvious.
Description
Technical field
The utility model relates to a kind of engine electric spray system, especially a kind of general bi-block engine electric injection system.
Background technique
As requirement to general purpose engine energy-saving and emission-reduction and durability both at home and abroad is continuously improved, most of the country at present
Fuel delivery uses supplying oil of carburetor structure, and adaptability is not strong, under the burning of dilute book, easily causes rotary speed unstabilization phenomenon.
The general bi-block engine of huge discharge uses supplying oil of carburetor structure, the external general twin-tub hair of small part both at home and abroad at present
Motivation uses the electric injection system of motorcycle, and this system structure adopts a split structure, and air throttle and ECU points open design and peace
Dress, each sensor are individually encapsulated and lead plug-in mode are used to be connected with ECU, and such system cost is higher, is not able to satisfy general
The requirement of bi-block engine cost performance.
Utility model content
Technical problem to be solved in the utility model is in view of the above drawbacks of the prior art, to provide a kind of twin-tub and start
Machine electric injection system.
To achieve the goals above, the utility model provides a kind of bi-block engine electric injection system, including air throttle, spray
Oily device, inlet manifold, ECU board and lower cover, one end of the inlet manifold are connect with the air throttle, the inlet manifold it is another
One end is divided into two air inlet branch roads, and the end of each air inlet branch road is mounted on the fuel injector, the lower cover with it is described
Air throttle connection, the air throttle includes throttle body, throttle blade and throttle plate pin, is provided with solar term in the throttle body
Aperture of door, the throttle blade are mounted in the throttle bore by the throttle plate pin, wherein the both ends of the throttle bore
It is connected to respectively with air inlet, the bore ecto-entad of the air inlet is gradually reduced, and the ECU board is mounted on the throttle body
Bottom end, the ECU board connect by harness with multiple sensors of the fuel injector and engine, and the lower cover is fastened on institute
State the bottom end of throttle body.
Above-mentioned bi-block engine electric injection system, wherein the bottom end of the throttle body is provided with multiple boss, described
Correspond to the multiple boss on ECU board and be provided with multiple location holes, the ECU board is mounted on described convex by the location hole
On platform.
Above-mentioned bi-block engine electric injection system, wherein be provided with gasket between the ECU board and the boss.
Above-mentioned bi-block engine electric injection system, wherein the ECU board is locked together on the boss by screw pole, institute
Stating one end that screw pole is connect with the boss is screw, and the other end of the screw pole is provided with threaded hole, and the lower cover is logical
The threaded hole is crossed to be fixed on the throttle body.
Above-mentioned bi-block engine electric injection system, wherein the positioning hole end surface of the ECU board is provided with PCBA ground terminal,
The PCBA ground terminal and the throttle body is connected by the screw pole.
Above-mentioned bi-block engine electric injection system, wherein the junction setting of the throttle body and the lower cover is useful
In being equipped with wire harness sheath on the flange that the harness passes through, the flange.
Above-mentioned bi-block engine electric injection system, wherein annular interconnecting piece, the ring are provided on the surface of the flange
Shape interconnecting piece is annular groove or protrusion, is correspondingly arranged on and the annular groove or protrusion on the inner surface of the wire harness sheath
The mounting portion of adaptation.
Above-mentioned bi-block engine electric injection system, wherein be arranged on the edge that the lower cover is connect with the throttle body
There is step surface, the bottom side edge edge of the throttle body is correspondingly arranged on adaptation step.
Above-mentioned bi-block engine electric injection system, wherein the fuel injector is mounted on the air inlet branch by nozzle snap-gauge
On the road, the opening width of the nozzle snap-gauge is less than or equal to the card slot outside diameter of the fuel injector.
Above-mentioned bi-block engine electric injection system, wherein correspond to the protrusion of the fuel injector on the nozzle snap-gauge
It is provided with mating groove.
The beneficial functional of the utility model is:
The bi-block engine electric injection system of the utility model controls multi-cylinder air amount, ECU using single-unit valve port
TPS (Trottle Position Sensor, section are integrated on (Electronic Control Unit, electronic control unit)
Valve position sensor), intake air temperature sensor, barometric pressure sensor, ECU is connected on fuel nozzle by harness, can
Fuel oil needed for accurate control each operating condition of engine, and can be in the use in various environment, it is high-end that bi-block engine belongs to huge discharge
Product, application of the electric injection system on twin-tub machine, drop row and oil-saving effect it is more obvious.
The utility model is described in detail below in conjunction with the drawings and specific embodiments, but not as to the utility model
Restriction.
Detailed description of the invention
Fig. 1 is an embodiment of the present invention perspective view；
Fig. 2 is the perspective view of another embodiment of the utility model；
Fig. 3 is the throttle valve structure schematic diagram of an embodiment of the present invention；
Fig. 4 is the bottom view of Fig. 3；
Fig. 5 is the top view of Fig. 3；
Fig. 6 is the right view of Fig. 3；
Fig. 7 is the left view of Fig. 3；
Fig. 8 is the A-A cross-sectional view of Fig. 3；
Fig. 9 is the B-B cross-sectional view of Fig. 4；
Figure 10 is the inlet manifold partial perspective cutaway view of an embodiment of the present invention.
Wherein, appended drawing reference
1 throttle body
2 wire harness sheaths
3 ECU boards
4 screw poles
5 lower covers
6 annular interconnecting pieces
7 throttle bores
8 air inlets
9 throttle plate pins
10 throttle blades
11 wabbler anti-theft screws
12 location holes
13 gaskets
14 boss
15 step surfaces
16 nozzle snap-gauges
17 screws
18 fuel injectors
19 inlet manifold
20 inlet nozzles
21 air throttles
22 air filters
23 flanges
Specific embodiment
Structural principle and working principle of the invention are described in detail with reference to the accompanying drawing:
It is an embodiment of the present invention perspective view referring to Fig. 1, Fig. 2 and Fig. 3, Fig. 1, Fig. 2 is another reality of the utility model
The perspective view of example is applied, Fig. 3 is the throttle valve structure schematic diagram of an embodiment of the present invention.The bi-block engine of the utility model
Electric injection system, including air throttle 21, fuel injector 18, inlet manifold 19, ECU board 3 and lower cover 5, one end of the inlet manifold 19
It is connect with the side of the air throttle 21, the other end of the inlet manifold 19 is divided into two air inlet branch roads, each air inlet
The end of branch is respectively equipped with a set of fuel injector 18, and the lower cover 5 is connect with the bottom of the air throttle 21, air throttle
21 other side is connect with air filter 22, and the air throttle 21 includes throttle body 1, throttle blade 10 and throttle plate pin 9, described
Throttle bore 7 is provided in throttle body 1, the throttle blade 10 is mounted on the throttle bore 7 by the throttle plate pin 9
Interior, the both ends of the throttle bore 7 are connected to air inlet 8 respectively, and the bore ecto-entad of the air inlet 8 is gradually reduced, and are in
Horn-like, shape, the size of two side-inlets 8 are close, can change air inlet and outlet according to different engine structure needs
Direction (two kinds of mounting means referring to Fig. 1 and Fig. 2) adjusts the size of throttle bore 7, is adapted to twin-tub or multi-cylinder EFI is started
Machine.The ECU board 3 is mounted on the bottom end of the throttle body 1, and the ECU board 3 is by harness and the fuel injector 18 and starts
Multiple sensors of machine connect, and the lower cover 5 is fastened on the bottom end of the throttle body 1.
It is the throttle valve structure schematic diagram of an embodiment of the present invention referring to Fig. 3-Fig. 9, Fig. 3, Fig. 4 is looking up for Fig. 3
Figure, Fig. 5 are the top view of Fig. 3, and Fig. 6 is the right view of Fig. 3, and Fig. 7 is the left view of Fig. 3, and Fig. 8 is the A-A cross-sectional view of Fig. 3, Fig. 9
For the B-B cross-sectional view of Fig. 4.The bottom end of the throttle body 1 is provided with multiple boss 14, corresponds on the ECU board 3 described more
A boss 14 is provided with multiple location holes 12, and the ECU board 3 is mounted on the boss 14 by the location hole 12.This reality
Applying preferred boss 14 in example is 4 raised cylinders, and there is step cutting pattern in the end face of the cylinder, 4 circles are corresponding on ECU board 3
Location hole 12 covers on step cutting pattern face.Gasket is provided between the ECU board 3 and the boss 14 (i.e. step cutting pattern face)
13, preferably plastic spacer 13.The ECU board 3 is locked together on the boss 14 of the throttle body 1 by 4 screw poles 4, institute
Stating one end that screw pole 4 is connect with the boss 14 is screw or screw, and the other end of the screw pole 4 is provided with threaded hole,
The lower cover 5 is fixed on the throttle body 1 by the threaded hole, can be specifically locked together in by wabbler anti-theft screw 11
In the threaded hole of screw pole 4.44 outer surfaces of screw pole are processable hexagonal configuration, linear type shape or other with convenient screwdriver
The structure of locking, material are preferably conductive metal material.12 end face of location hole of the ECU board 3 is provided with PCB ground terminal, leads to
It crosses one or more screw poles 4 and the PCB ground terminal and the throttle body 1 is connected, reduce electromagnetic interference to ECU board 3
Influence.
The junction of the throttle body 1 and the lower cover 5 is provided with the flange 23 passed through for the harness, this implementation
Example is a rectangular boss 14, is equipped with wire harness sheath 2 on the flange 23.Annular connection is provided on the surface of the flange 23
Portion 6, the annular interconnecting piece 6 is annular groove or protrusion, is correspondingly arranged on and the ring on the inner surface of the wire harness sheath 2
The mounting portion of connected in star or protrusion adaptation, such as the protrusion or the groove of respective protrusions etc. of respective slot.The section of annular groove
It can be arc-shaped, rectangle or other shapes.Wire harness sheath 2 covered by the annular groove and protrusion played on flange 23 it is anti-
Dirt, waterproof, anti-fall function, the material of wire harness sheath 2 are preferably elastic material, such as: various rubber, TPU, PU.
Step surface 15, preferably right angle step, institute are provided on the edge that the lower cover 5 is connect with the throttle body 1
The bottom end outer edge for stating throttle body 1 is correspondingly arranged on adaptation step, and the two is mutually reported to the leadship after accomplishing a task cooperation, can play waterproof and dustproof
Effect.
It is the inlet manifold partial perspective cutaway view of an embodiment of the present invention referring to Figure 10, Figure 10.The fuel injector
18 are mounted in the air inlet branch road of the inlet manifold 19 by nozzle snap-gauge 16, wide at the opening minimum of the nozzle snap-gauge 16
Degree is less than or equal to the card slot outside diameter of the fuel injector 18, and after assembling in this way, nozzle snap-gauge 16 is not easy to drop out.The nozzle
Protrusion on snap-gauge 16 corresponding to the fuel injector 18 is provided with mating groove, and the present embodiment is a square groove, with fuel injector 18
Rectangular protrusion cooperation, different mating grooves, opening and two screw positions relative angle, it may be convenient to adjust fuel injector
18 angle.Nozzle snap-gauge 16 is stuck on the card slot of fuel injector 18, is fixed on inlet nozzle 20 and fuel injector 18 by screw 17
In inlet manifold 19.
The logical machine bi-block engine electric injection system of the utility model controls multicylinder engine air inlet using single throttle bore
Air capacity is integrated with ECU board on air throttle, TPS (Trottle Position Sensor, air throttle position is integrated on ECU board
Set sensor), intake air temperature sensor, barometric pressure sensor and stepper motor etc., ECU board is connected to fuel nozzle by harness
On.Speed probe, cylinder head temperature sensor, lambda sensor, machine oil and water temperature sensor on engine etc., are connected by harness
Be connected to ECU board, ECU board can accurately export each actuator of control by acquiring above-mentioned input signal, as fuel pump, fuel injector,
Ignition coil and stepper motor etc., the economy and stability of fuel oil needed for guaranteeing each operating condition, and can make in various environment
With the dynamic equilibrium of guarantee each cylinder of engine.Bi-block engine belongs to the high-end product of huge discharge, and electric injection system is in twin-tub machine
On application, drop row and oil-saving effect it is more obvious.
Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence
In the case of, those skilled in the art work as can make various corresponding changes and modifications, but these according to the utility model
Corresponding changes and modifications all should belong to the protection scope of the utility model the attached claims.
Claims (10)
1. a kind of bi-block engine electric injection system, including air throttle, fuel injector, inlet manifold, ECU board and lower cover, the air inlet
One end of manifold is connect with the air throttle, and the other end of the inlet manifold is divided into two air inlet branch roads, each air inlet
The end of branch is mounted on the fuel injector, and the lower cover is connect with the air throttle, the air throttle include throttle body,
Throttle blade and throttle plate pin, throttle bore is provided in the throttle body, and the throttle blade passes through the throttle plate pin
It is mounted in the throttle bore, which is characterized in that the both ends of the throttle bore are connected to air inlet respectively, the air inlet
Bore ecto-entad be gradually reduced, the ECU board is mounted on the bottom end of the throttle body, the ECU board by harness with
The connection of multiple sensors of the fuel injector and engine, the lower cover are fastened on the bottom end of the throttle body.
2. bi-block engine electric injection system as described in claim 1, which is characterized in that the bottom end of the throttle body is provided with
Multiple boss correspond to the multiple boss on the ECU board and are provided with multiple location holes, and the ECU board passes through the positioning
Hole is mounted on the boss.
3. bi-block engine electric injection system as claimed in claim 2, which is characterized in that between the ECU board and the boss
It is provided with gasket.
4. bi-block engine electric injection system as claimed in claim 2 or claim 3, which is characterized in that the ECU board is locked by screw pole
It closes on the boss, one end that the screw pole is connect with the boss is screw, and the other end of the screw pole is provided with
Threaded hole, the lower cover are fixed on the throttle body by the threaded hole.
5. bi-block engine electric injection system as claimed in claim 4, which is characterized in that the positioning hole end surface of the ECU board is set
It is equipped with PCBA ground terminal, the PCBA ground terminal and the throttle body are connected by the screw pole.
6. bi-block engine electric injection system as claimed in claim 2 or claim 3, which is characterized in that the throttle body and it is described under
The junction of lid is provided with the flange passed through for the harness, is equipped with wire harness sheath on the flange.
7. bi-block engine electric injection system as claimed in claim 6, which is characterized in that be provided with ring on the surface of the flange
Shape interconnecting piece, the annular interconnecting piece are annular groove or protrusion, are correspondingly arranged on the inner surface of the wire harness sheath and institute
State the mounting portion of annular groove or protrusion adaptation.
8. bi-block engine electric injection system as claimed in claim 2 or claim 3, which is characterized in that the lower cover and the air throttle
Step surface is provided on the edge of body connection, the bottom side edge edge of the throttle body is correspondingly arranged on adaptation step.
9. bi-block engine electric injection system as claimed in claim 1,2 or 3, which is characterized in that the fuel injector passes through nozzle
Snap-gauge is mounted in the air inlet branch road, and the opening width of the nozzle snap-gauge is less than or equal to the card slot outer circle of the fuel injector
Diameter.
10. bi-block engine electric injection system as claimed in claim 9, which is characterized in that correspond to institute on the nozzle snap-gauge
The protrusion for stating fuel injector is provided with mating groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821529586.0U CN209163946U (en) | 2018-09-18 | 2018-09-18 | A kind of bi-block engine electric injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821529586.0U CN209163946U (en) | 2018-09-18 | 2018-09-18 | A kind of bi-block engine electric injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209163946U true CN209163946U (en) | 2019-07-26 |
Family
ID=67331507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821529586.0U Active CN209163946U (en) | 2018-09-18 | 2018-09-18 | A kind of bi-block engine electric injection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209163946U (en) |
-
2018
- 2018-09-18 CN CN201821529586.0U patent/CN209163946U/en active Active
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