A kind of dual-purpose pipeline structure of engine oil gas
Technical field
The present invention relates to a kind of gas spray head, and in particular to a kind of dual-purpose pipeline structure of engine oil gas.
Background technology
Natural gas is the energy most cleaned in fossil fuel, and is primary energy, and its impurity content is few, in theory,
It does not pollute after burning, with the significant feature of environmental protection.City's democratic reform is burnt after natural gas, and the pollutant of generation will significantly subtract than coal gas
It is few, carbon dioxide 25% is such as reduced, sulfur dioxide more than 50%, nitrogen oxides 40% or so is reduced.Because natural gas have compared with
High economic benefit, in identical equivalent heat value, countries in the world are 1 liter of vapour typically by the price control of 1 cubic metre of natural gas
The half of oily diesel oil.So natural gas is used in engine system in the prior art.If the thermal efficiency of all kinds of engines
Closer, then the fuel cost of gas-fueled vehicles is about the half of gasoline car or diesel vehicle.This not only compensate for due to automobile
Quantity be continuously increased caused by liquid fuel it is insufficient, and be greatly lowered using the operating cost of automobile.And just
For the engine of automotive window top, natural gas easily spreads, and is easily uniformly mixed with air within the engine, ratio of combustion is completeer
Entirely, totally, do not allow to be also easy to produce carbon distribution, the capability of antidetonance is good, will not dilute lubricating oil, thus make the parts depreciation in engine cylinder
Greatly reduce, the life-span of engine and the useful life of lubricating oil is increased substantially.All oil-gas two-way automobile is existed above
China is becoming increasingly popular.But oil-gas two-way car of the prior art is using independent gasoline, gas spraying mouth and burning
Room is connected so that the structure of engine block is complex, add manufacturing cost.
The content of the invention
The technical problems to be solved by the invention are that existing oil-gas two-way car uses independent gasoline, gas spraying mouth
It is connected with combustion chamber so that the structure of engine block is complex, add manufacturing cost, it is therefore intended that provide a kind of engine
Oil-gas two-way pipeline structure, realize it is a kind of can oil gas share nozzle arrangements purpose.
The present invention is achieved through the following technical solutions:
A kind of dual-purpose pipeline structure of engine oil gas, including the oil pipe being connected with combustion chamber and the air inlet being enclosed on the outside of oil pipe
Pipe, forms supply chamber, an exhaust gas nozzle, the exhaust gas nozzle is also cased with the outside of air inlet pipe between the air inlet pipe and oil pipe
Gas chamber is formed between air inlet pipe, an air supply opening is also provided with air inlet pipe, the air supply opening is communicated with gas chamber, described
Oil pipe, air inlet pipe, one end of exhaust gas nozzle are respectively positioned on same plane and are connected with combustion chamber;One is additionally provided with gas chamber
Pushing mechanism, the pushing mechanism is connected with actuator and can be along the axis of exhaust gas nozzle to combustion chamber under the driving of actuator
Direction motion, be also provided with an air inlet on exhaust gas nozzle, the air inlet is located between combustion chamber and pushing mechanism;
Motor-driven valve is additionally provided with oil pipe, the motor-driven valve, actuator are connected with automobile ECU system.Further, in the prior art
Fuel nozzle typically use two fluidic structures, i.e., the oil pipe being connected with combustion chamber and the air inlet pipe being enclosed on the outside of oil pipe are described
Supply chamber is formed between air inlet pipe and oil pipe, supply intracavitary is provided with gas distributor, oil pipe transport feed liquid, compressed air,
After gas distributor, sprayed from annular space, i.e. gas passage or gas nozzle.When solution-air two-phase flow is in nozzle exit end
When face is contacted, because the speed that gas sprays from annular space is very high, generally 200~340m/s can also reach supersonic speed, but
The speed of liquid outflow less, is usually no more than 2m/s, therefore, between two fluids, there is very big relative velocity, so as to produce
Raw sizable frictional force, is atomized feed liquid.The present invention is using existing second fluid nozzle as base material, on the outside of second fluid nozzle again
An exhaust gas nozzle is covered, makes to form gas chamber between exhaust gas nozzle and second fluid nozzle, the exhaust gas nozzle is supplied with automotive natural gas
Tracheae is connected, and automotive natural gas air supply pipe is supplied to gas chamber, is then opened in air inlet pipe in an air supply opening, gas chamber
Natural gas can just enter in supply chamber, so make substitute gas air, in combustion gas after gas distributor, from annular space, i.e.,
Spray, be atomized when also promoting gasoline to spray in gas passage or gas nozzle.Jet natural gas structure:Set and push away in gas chamber
Motivation structure, controls pushing mechanism compressed natural gas by motor-driven valve, with this compressed natural gas, natural gas can be promoted to be sprayed from nozzle
Go out.Motor-driven valve, actuator are connected with automobile ECU system, and user operates existing solution-air switching device, and automobile ECU system is received
Motor-driven valve or actuator work are controlled after to switching signal, the injection for being gas or liquid into combustion chamber is realized with this.This hair
Bright concrete structure is as described above, and oil pipe, air inlet pipe, one end of exhaust gas nozzle are respectively positioned on same plane and connected with combustion chamber
Connect, natural gas nozzle and petrol jet are united two into one with this, simplify the structure of engine block combustion chamber, reduce and be manufactured into
This.In addition, the present invention is using boosting gas of the natural gas as gasoline spray, under sample gas flow, it is possible to increase the combustion of combustion chamber
Burning amount, improves the power of engine, middle compared with prior art to improve engine power, this programme using gasoline combustion amount is increased
Under the gasoline of isodose, gasoline energy loss can be reduced, and reduces the requirement to oil pipe, with higher practicality.
The pushing mechanism includes annular push pedal, two hydraulic push rods, and the annular push pedal is enclosed on the outside of air inlet pipe
And matched with exhaust gas nozzle inwall, the hydraulic push rod is symmetrical on the center line of exhaust gas nozzle, one end of hydraulic push rod and ring
One end connection, the other end and the actuator of shape push pedal are connected, and hydraulic push rod is located at annular side of the push pedal away from combustion chamber.Enter
One step, described above is that pushing mechanism is explained further, actuator control hydraulic push rod, hydraulic push rod is promoted annular
Push pedal moves reciprocatingly to combustion chamber direction, annular push pedal compressed natural gas, makes natural gas quick from jet hole spirt combustion chamber.
Spring is also cased with the outside of the hydraulic push rod.Further, primarily served in one spring of hydraulic push rod outer sheath
Cushioning effect, protects push rod.
The present invention compared with prior art, has the following advantages and advantages:
A kind of dual-purpose pipeline structure of engine oil gas of the present invention, is also cased with an exhaust gas nozzle on the outside of air inlet pipe, described
Gas chamber is formed between exhaust gas nozzle and air inlet pipe, an air supply opening, the air supply opening and gas chamber are also provided with air inlet pipe
Communicate, by this structure by gasoline, the integration of gas spraying mouth, solve existing engine block chamber structure more multiple
It is miscellaneous, the problem of manufacturing cost is higher, simultaneously as using power air supply source of the natural gas as gasoline, in the gasoline of isodose
Under, gasoline energy loss is reduced, the requirement to oil pipe is reduced, with higher practicality.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is schematic structural view of the invention.
Mark and corresponding parts title in accompanying drawing:
1- oil pipes, 2- air inlet pipe, 3- exhaust gas nozzles, 4- gas chambers, 5- air supply openings, 6- air inlets, 7- annular push pedals, 8- liquid
Press push rod, 9- motor-driven valves, 10- actuators, 11- springs.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does not make
For limitation of the invention.
Embodiment
As shown in figure 1, the dual-purpose pipeline structure of a kind of engine oil gas of the invention, including the oil pipe 1 that is connected with combustion chamber and
The air inlet pipe 2 in the outside of oil pipe 1 is enclosed on, supply chamber is formed between the air inlet pipe 2 and oil pipe 1, one is also cased with the outside of air inlet pipe 2
Individual exhaust gas nozzle 3, forms gas chamber 4, an air supply opening is also provided with air inlet pipe 2 between the exhaust gas nozzle 3 and air inlet pipe 2
5, the air supply opening 5 is communicated with gas chamber 4, the oil pipe 1, air inlet pipe 2, one end of exhaust gas nozzle 3 be respectively positioned on same plane and
It is connected with combustion chamber;A pushing mechanism is additionally provided with gas chamber 4, the pushing mechanism is connected and held with actuator 10
It can be moved under the driving of row device 10 along the axis of exhaust gas nozzle 3 to the direction of combustion chamber, one is also provided with exhaust gas nozzle 3 and is entered
Gas port 6, the air inlet 6 is located between combustion chamber and pushing mechanism;Motor-driven valve 9, the motor-driven valve are additionally provided with oil pipe 1
9th, actuator 10 is connected with automobile ECU system.The pushing mechanism includes annular push pedal 7, two hydraulic push rods 8, institute
State annular push pedal 7 to be enclosed on the outside of air inlet pipe 2 and match with the inwall of exhaust gas nozzle 3, the hydraulic push rod 8 is on exhaust gas nozzle 3
Center line is symmetrical, and one end of hydraulic push rod 8 is connected with one end of annular push pedal 7, the other end and actuator 10 are connected, and hydraulic thrust
Bar 8 is located at annular side of the push pedal 7 away from combustion chamber.The outside of hydraulic push rod 8 is also cased with spring 11.
The course of work of the present invention:The solution-air switching device that driver's operation is connected with ECU, is supplied when being switched to natural gas
During gaseity, the control actuator work of automobile ECU system, while control motor-driven valve 9 to close the oil supply gallery of oil pipe 1, actuator
Axis of the 10 promotion hydraulic push rods 8 along exhaust gas nozzle 3 is moved to the direction of combustion chamber, and hydraulic push rod 8 promotes annular push pedal 7 to compress
Natural gas, natural gas just sprays from jet hole;
When being switched to natural gas supply state, automobile ECU system control actuator 10 is stopped, while control is electronic
Valve 9 opens the oil supply gallery of oil pipe 1, and natural gas is still continually to supply intracavitary supply, and gas passes through through gas distributor
Compressive state is in afterwards, gasoline atomizing is sprayed from jet hole using with the gasoline speed in oil pipe 1.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.