CN201206497Y

CN201206497Y - Diesel engine with gasoline electronic spray device

Info

Publication number: CN201206497Y
Application number: CNU2008201198607U
Authority: CN
Inventors: 于洪亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-02
Filing date: 2008-06-02
Publication date: 2009-03-11
Anticipated expiration: 2018-06-02

Abstract

The utility model relates to an internal combustion engine device, in particular to a diesel engine with an electronic gasoline injection device. The diesel engine comprises a diesel engine body, a cylinder head cover and a cylinder cap, wherein, an intake manifold and a spark plug are arranged on the cylinder cap, the intake manifold comprises a main air inlet pipe connected with an air cleaner and a plurality of branch pipes communicated with the main air inlet pipe, and the spark plug is connected with an ignition device. The diesel engine is characterized in that the branch pipes on the intake manifold are bent into circular arc shapes, the ratio of the length thereof to the diameter of a pipe body is (4-8):1, a fuel rail nozzle for spraying gasoline and a spraying nozzle for spraying fuel gas are installed at the mouth of each branch pipe, the fuel input end of the fuel rail nozzle is connected to the output end of an electronic gasoline injection controller, the fuel gas input end of the spraying nozzle is connected with the output end of a fuel gas pressure relief valve through a gas pipe, and the electric control end of the spraying nozzle is connected to the output end of a gas controller. The engine can be changed into an LPG/gasoline dual-fuel engine or a CNG/gasoline dual-fuel engine, and by utilizing the complementary relationship, the transportation cost of the automobile is saved, the emission pollution is reduced, and the operation is practically convenient.

Description

The diesel engine that has gasoline electric injection device

Technical field

The utility model relates to a kind of internal-combustion engine arrangement, is the diesel engine that has gasoline electric injection device specifically.

Background technique

Current, because the more and more serious environmental pollution problem that automobile brings, the destiny that the diesel engine of traditional maximum discharge is on the verge of being replaced, many automobile industries have to develop low-emission diesel, the expensive diesel oil EFI parts of external import increase considerably manufacture cost, international oil price constantly raises, and high-quality oil plant has increased cost of transportation, and diesel-engined vehicle faces great pressure.In this case, many enterprises begin to select clean fuels such as rock gas and liquid gas, on the diesel engine basis, use ECU EFI control technique, increase some combustion gas parts, reduce compression ratio, have succeeded in developing gas engine.Though the gas engine power performance slightly descends, rely on low emission, the low price combustion gas is won the market.Because the gas engine compression ratio reduces, winter, fuel gas temperature was low, made engine cold-start become a difficult problem but simultaneously.In addition, under the situation of existing market, the quantity of Vehicle Fueling Station is also few, in case automobile combustion gas midway uses up, interim aerating is difficulty very, and this invention very is necessary.

Summary of the invention

The purpose of this utility model provides a kind ofly both can use combustion gas, can use the diesel engine that has gasoline electric injection device of gasoline again, to solve existing combustion gas diesel engine cold start-up in winter difficulty and interim emergent required.

For achieving the above object, the utility model is by the following technical solutions:

The diesel engine that has gasoline electric injection device described in the utility model, comprise diesel-engine body, cowl hood, cylinder cap, have intake manifold and spark plug on the cylinder cap, intake manifold comprises main suction tude that connects air-strainer and many arms that are communicated with main suction tude, spark plug connects ignition mechanism, it is characterized in that: the arm on the intake manifold bends to circular-arc, its length is 4-8:1 with the ratio of pipe diameter, the mouth of pipe place of arm is equipped with the oily rail nozzle of injected petrol and sprays the blast nozzle of combustion gas, the fuel oil input end of oil rail nozzle is connected with the fuel oil delivery side of pump by oil pipe, the automatically controlled end of oil rail nozzle is connected to the output terminal of gasoline electric injection controller, the combustion gas input end of blast nozzle is connected by the output terminal of tracheae with the combustion gas reduction valve, and the automatically controlled end of blast nozzle is connected to the output terminal of Gas controller.

Side at diesel-engine body is installed with the corner signal sensor, and the signal output part of corner signal sensor is connected to the corner signal collection terminal of gasoline electric injection controller.

Owing to adopted technique scheme, motor can become LPG/ gasoline or CNG/ gasoline dual fuel engine, during engine cold-start, gas engine starts difficulty, can change the cold start-up of gasoline combustion system, and engine temperature gains combustion gas after raising again.When combustion gas is used up midway, can be converted to gasoline and drive towards gas station as auxiliary fuel, automobile can not cast anchor midway.Utilize complementary relationship, automobile is saved cost of transportation, reduces exhaust emission, and it is convenient especially to use.

Description of drawings

Fig. 1 is a kind of embodiment's of the utility model a structural representation;

Fig. 2 is the another kind of embodiment's of the utility model a structural representation;

Fig. 3 is the structural representation of intake manifold;

Fig. 4 is that the k of Fig. 2 is to schematic representation;

Fig. 5 is that the A of Fig. 2 is to schematic representation;

Fig. 6 is the structural representation of corner signal sensor

Fig. 7 is the right elevation of Fig. 6.

Embodiment

The utility model will be further described below in conjunction with the drawings and specific embodiments.

The diesel engine that has gasoline electric injection device described in the utility model, as shown in Figure 1 and Figure 2, comprise diesel-engine body 1, cowl hood 2, cylinder cap 3, have intake manifold 4 and spark plug 9 on the cylinder cap 3, intake manifold 4 comprises main suction tude 41 that connects air-strainer and the many arms 42 that are communicated with main suction tude 41, and spark plug 9 connects ignition mechanism by combined spot fire coil 113.As Fig. 3, Fig. 4, shown in Figure 5, the arm 42 on the intake manifold 4 bends to circular-arc, and its length is 4:1 with the ratio of pipe diameter, can certainly be bigger 5:1 or 6:1 even 8:1.Jia Chang arm 42 can be avoided interfering with each other between each cylinder of motor like this.The mouth of pipe place of arm 42 is equipped with the oily rail nozzle 5 of injected petrol and sprays the blast nozzle 6 of combustion gas, the fuel oil input end of oil rail nozzle 5 is connected with the fuel oil delivery side of pump by oil pipe, the automatically controlled end of oil rail nozzle 5 is connected to the output terminal of gasoline electric injection controller 111, the combustion gas input end of blast nozzle 6 is connected by the output terminal of tracheae with the combustion gas reduction valve, and blast nozzle 6 automatically controlled ends are connected to the output terminal of Gas controller 110.In order between fuel oil and combustion gas, to switch, gasoline control electromagnetic valve 121 is installed on fuel delivery line, combustion gas control electromagnetic valve 112 is installed on fuel gas transportation pipeline, use fuel oil or combustion gas by electromagnetic valve.Side at diesel-engine body 1 is installed with corner signal sensor 102, as Fig. 6, shown in Figure 7, corner signal sensor 102 cooperates signal panel 99 to use, signal panel 99 are installed on the engine crankshaft signal output shaft, and the signal output part of corner signal sensor 102 is connected to the corner signal collection terminal of gasoline electric injection controller.

Problem to be solved in the utility model is the gasoline combustion technology is used on the gas engine of diesel engine and diesel engine refitted, petrol engine cold start-up in the winter time is very easy, current gasoline electric injection technology is very ripe again, is known technology, is not described in detail in this.Key of the present utility model be how petrol jet and oily rail is retrofitted on the suction tude and oil spout constantly and any control of time of ignition, avoid the interference between each cylinder charge air flow.

In order to reduce the interference between each cylinder charge air flow, intake manifold 4 is extended, and add charge of oil rail nozzle 5 at every cylinder arm 42 near the cylinder cap flange ends, the blast nozzle 6 that also has gas engine to need.Suction pressure, intake air temperature signals sensor 103 that calculating charge flow rate needs are installed on the main suction tude 41, and the electronic throttle that has aperture position transducer 109 is contained in main suction tude 41 suction port foremosts.

As shown in Figure 2, present embodiment has removed the Injection Pump of conventional diesel engine, corner signal sensor 102 is contained on its position, makes structure compact more, reasonable.Cooling-water temperature sensor is contained in below the thermostat, and wide lambda sensor 104 is contained on the exhaust outlet, and signal feed back is adjusted air fuel ratio automatically for central processing unit (CPU) ECU and formed closed loop control.

Fuel Petroleum is used on the diesel engine, and power all will reach optimal combustion state with discharging.Duel fuel engine needs central processing unit stores two cover systems conversion and control petrol jet and gas nozzle respectively.

As shown in Figure 1, the utility model is with diesel engine intake manifold 4 lengthenings, near each cylinder oil rail nozzle 5 and common fuel rail are installed respectively above the inlet flange end square tube, the oil spout moment and endurance are controlled by central processing unit (CPU) ECU, Fuel Petroleum is pressurized to oily rail by the motor-drive pump in the fuel tank 106, be ejected in the clutch release slave cylinder by oily rail nozzle 5 again, on the oily rail hydraulic adjustment device be installed, keep oily rail pressure stable.

Intake manifold 4 is controlled by central processing unit (CPU) with the endurance near also having blast nozzle 6 and gas rail, nozzle to spray into above the inlet flange end square tube constantly, and gaseous-pressure is controlled by reduction valve.

Closure uses electronic type control, pedal 105 is stepped on, output two-way position signal, enter central processing unit (CPU) after, central processor comprehensive suction pressure, temperature, data such as water temperature are calculated output closure control signal and nozzle ejection signal automatically, closure is opened certain position, and air enters suction tude, and oily rail nozzle 5 sprays into fuel oil, mixed gas enters cylinder along intake duct, and spark plug 9 is in the control down-firing explosive combustion of central processing unit (CPU).Wide lambda sensor 104 is measured the oxygen data of discharging gas and is fed back to central processing unit (CPU) ECU, in time air inflow, fuel injection quantity is regulated.Reach best combustion, reduce discharging.Fuel consumption reduces, and the power performance is better.

Remove involute gear, use timing to be with synchronously, total noise of centrifuge reduces significantly.

Through the research and development test, power reaches the diesel engine level, and the requirement of state three is satisfied in discharging.Certainly; the present invention can also have other various embodiments; those of ordinary skill in the art ought can make various corresponding changes and distortion according to the present invention under the situation that does not deviate from spirit of the present invention and essence, but these corresponding changes and distortion all belong to the protection domain of the appended claim of the present invention.

Claims

1, the diesel engine that has gasoline electric injection device, comprise diesel-engine body (1), cowl hood (2), cylinder cap (3), have intake manifold (4) and spark plug on the cylinder cap (3), intake manifold (4) comprises main suction tude (41) that connects air-strainer and the many arms (42) that are communicated with main suction tude (41), spark plug connects ignition mechanism, it is characterized in that: the arm (42) on the intake manifold (4) bends to circular-arc, its length is 4-8:1 with the ratio of pipe diameter, the mouth of pipe place of arm (42) is equipped with the oily rail nozzle (5) of injected petrol and sprays the blast nozzle (6) of combustion gas, the fuel oil input end of oil rail nozzle (5) is connected with the fuel oil delivery side of pump by oil pipe, the automatically controlled end of oil rail nozzle (5) is connected to the output terminal of gasoline electric injection controller, the combustion gas input end of blast nozzle (6) is connected by the output terminal of tracheae with the combustion gas reduction valve, and the automatically controlled end of blast nozzle (6) is connected to the output terminal of Gas controller.

2, the diesel engine that has gasoline electric injection device according to claim 1, it is characterized in that: the side at diesel-engine body (1) is installed with corner signal sensor (102), and the signal output part of corner signal sensor (102) is connected to the corner signal collection terminal of gasoline electric injection controller.