CN206017028U

CN206017028U - A kind of cold start-up double fuel methanol vehicle

Info

Publication number: CN206017028U
Application number: CN201621064715.4U
Authority: CN
Inventors: 张亚东
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-09-20
Filing date: 2016-09-20
Publication date: 2017-03-15
Anticipated expiration: 2026-09-20

Abstract

The utility model discloses a kind of cold start-up double fuel methanol vehicle, including a set of cold start-up circuit, double oil piping systems, oily rail and connecting line, double oil piping systems include gasoline passage and methanol oil circuit, gasoline passage and methanol oil circuit share an oily rail, cold start-up circuit automatic during low temperature, oily rail is replaced as gasoline and the residual methanol in atomizer is sprayed, and the methanol vehicle so as to overcome double fuel common fuel rail pattern is unable to the key issue of cold start-up.Technology is simple reliable and stable, burns pure methanol during work, and economy is maximized, and is suitable for various ignition internal combustion engines, and the exploitation for high-power methanol engine provides technique direction.

Description

A kind of cold start-up double fuel methanol vehicle

Technical field

This utility model is related to the methanol vehicle that a kind of " gasoline/methanol " shares a set of oily rail, belongs to " single track single spraying " mould Formula, especially a kind of cold start-up double fuel methanol vehicle.

Background technology

Automobile burns methanol, and low-carbon environment-friendly, wherein great prospect, M100 methanol fuels economy are maximized, with than gasoline Economical 50% economic worth, most market potential.Retrieve announced methanol vehicle Patents technology, it is seen that cold start-up is The bottleneck problem of methanol vehicle development.Wherein solving cold start-up has：One；Air intake duct sprays gasoline mode, and drawback is that safety is not good And gasoline can not be travelled.Such as patent 200910163093.9.Two；The double jet mould formulas of dual-fuel double track are excessively complicated, and cost is high not Beneficial to popularization, such as patent 200810107976.3.Three；In the way of heating methanol carrys out cold start-up, only mitigation, more low temperature be then Infeasible.Such as 201310029320.5 201210184246.X of patent

In conjunction with current social present situation, the methanol vehicle of " alcohol/gasoline " dual-fuel pattern meets present society needs.? During patentee is for patent CN 203321721 U of lucky holding group, it is indicated that the disadvantage that double fuel " the double sprays of double track " is present End, has therefore done the technological innovation of double fuel " single track single spraying ", but the patent of the patent and the artificial Chery Automobiles company of application Application number 200610155958.3 and number of patent application are identicals for 201310092599.1 in principle, i.e. " methanol/vapour The public oily rail of oil ", and oily rail system for tax payment alcohol is replaced as gasoline, it is desirable to solve cold start-up.But in fact, this technology is not Cold start-up can be solved, oily rail after displacement gasoline, still beat missing of ignition, has been to need to stop well known to industry personage by cold car Front displacement gasoline simultaneously burns a few minutes, and next cold car could start.In actual applications, just in case vapour is not replaced in winter temporary parking Oil, electromotor cool down, and cannot start, and such case obviously can not receive.Early in the Application No. of 2010 2010102602534 patents, are to solve the problem, employ the scheme of " double track single spraying ", but practical manifestation, need to beat during length Fire could start, and cold start-up is not also properly settled, and very big to storage battery and starter motor infringement.

Find in practical application, double fuel " single track single spraying " advantage is a lot, but because being unable to cold start-up, limit which practical It is worth.The reason for technical scheme is unable to cold start-up be：After cold car oil rail displacement gasoline, 5 milliliters of first inside atomizer, are there are about Alcohol cannot be replaced, and sprayed during startup is still methanol, cause normally to start.If spraying the residual first in advance before starting Alcohol, then normally can start successfully.The cold start-up circuit of principle design accordingly, automatic replacing gasoline can make atomizer spray Residual methanol, so that solve the problems, such as cold start-up.

Content of the invention

The purpose of this utility model is to overcome the shortcomings of prior art, for presence in " the public single oil rail of double fuel " technology Defect, there is provided a kind of cold start-up double fuel methanol vehicle.

The working method of the adopted atomizer of cold start-up " pre- spray in advance " is not found in Patents and document, and principle sets accordingly A kind of cold start-up circuit that can be performed entirely automatically of meter, the automatic replacing oil rail gasoline in cold car, and the residual in atomizer Methanol sprays in advance, overcomes the key issue for being unable to cold start-up in " double fuel single track single spraying " scheme.This technology is simple easily real Apply reliable and stable, suitable various ignition internal combustion engines.Due to pure methanol being burnt during work, economy maximization has been reached, has been big The exploitation of horsepower methanol engine provides technique direction.

The technical solution of the utility model is：A kind of cold start-up double fuel methanol vehicle, including a set of cold start-up circuit, double Oil piping system, oily rail and connecting line, double oil piping systems include that gasoline passage and methanol oil circuit, gasoline passage and methanol oil circuit are shared One oily rail.Wherein gasoline passage includes petrol tank, petrol pump, pressure maintaining valve, check valve 1.Methanol oil circuit includes methanol fuel tank, first Alcohol oil pump, methanol pressure maintaining valve, pressure release electromagnetic valve, check valve 2, it is characterised in that：Methanol controller is placed in by connecting line connection Several atomizers on oily rail.The connecting line is connected with cold start-up circuit.Cold start-up circuit in addition with pressure release electromagnetic valve and vapour Oil pump connects.Oily rail is designed as built-in oil pipe formula oil rail, and oily rail homonymy has two ports, one end to connect gasoline passage, a termination Methanol oil circuit.Oily rail built-in oil pipe is to produce fluid circuit, reaches the purpose of displacement gasoline, and another end opening of oily rail is envelope Enclosed, is easily installed and consolidates.The oily rail displacement gasoline of described cold start-up circuit control simultaneously makes atomizer spray in advance in advance.

Described cold start-up circuit includes diode, relay, delay circuit 1, delay circuit 2, delay circuit 3, temperature control Device.Methanol controller accesses diode with the connecting line of atomizer, is then connected with relay, and relay is grounded with OV bonding, The connection atomizer positive pole of delay circuit 3 and relay.The connection pressure release electromagnetic valve of chronotron 2 and delay circuit 3, temperature controller one end Connection storage battery, other end connection delay circuit 1, delay circuit 2, delay circuit 3, described chronotron 1 are also connected with petrol pump.

Described temperature controller is placed in electromotor, for sense temperature.

Due to adopting above-mentioned technical proposal, the beneficial effects of the utility model to be：Under the control of cold start-up circuit, in cold car When automatic replacing oil rail gasoline the methanol that remains in atomizer is sprayed, overcome in " double fuel single track single spraying " scheme not The key issue of energy cold start-up.

Description of the drawings

Below in conjunction with the accompanying drawings and embodiment the utility model is described in further detail.

Fig. 1 is structural representation of the present utility model.

Fig. 2 is cold start-up electrical block diagram in Fig. 1.

Specific embodiment

With reference in Fig. 1, this utility model includes a set of cold start-up circuit, double oil piping systems, oily rail and connecting line, double oil circuits System includes that gasoline passage and methanol oil circuit, gasoline passage and methanol oil circuit share an oily rail.Wherein gasoline passage includes vapour Fuel tank, petrol pump, pressure maintaining valve, check valve 1.Methanol oil circuit includes methanol oil, case methanol oil pump, methanol pressure maintaining valve, pressure release electromagnetism Valve, check valve 2.Two sets of oil circuits are connected to two interfaces of public oily rail.

Some atomizers that methanol controller is placed on oily rail by connecting line connection, connecting line are connected with cold start-up circuit Connect.In addition cold start-up circuit is connected with pressure release electromagnetic valve and petrol pump.Oily rail is designed as built-in oil pipe formula oil rail, and oily rail homonymy sets There are two ports, one end to connect gasoline passage, a termination methanol oil circuit.Oily rail built-in oil pipe is to produce fluid circuit, reaches and puts The purpose of gasoline is changed, and avoids another end opening of oily rail, be easily installed and consolidate.The oily rail displacement of described cold start-up circuit control Gasoline simultaneously makes atomizer pre- spray in advance.

The course of work is：When engine temperature is less than 15 degree, cold start-up circuit start, petrol pump and pressure release electromagnetic valve lead to Electricity, gasoline flow to and are：1 built-in oil pipe of petrol pump pressure maintaining valve check valve oil rail internal reflux methanol oil circuit pressure release electricity Magnet valve methanol fuel tank.By built-in oil pipe, gasoline displacement in oily rail is completed, then atomizer sprays 2 seconds, completes cold start-up bar Part prepares, and can start at any time.

Cold start：Routinely mode key starts or one-key start can start, in startup, Re Che and traveling, Work for methanol oil circuit, methanol oil circuit workflow：2 oily rail of methanol oil pump methanol pressure maintaining valve check valve.? Start with during hot car, in oily rail, gasoline gradually becomes methanol.It was verified that the program is reliable and steady, and after hot car, oily rail Interior gasoline is just finished.Gasoline is only used for cold start-up at ordinary times, and each cold start-up consumes about 150-200ml, using 10 liters of little fuel tanks Gasoline can be with hundred times or so, and a winter is oily with 1-2 casees.

Double fuel mode of operation：Every day use methanol fuel, such as emergency requirement gasoline mode work, and are opened by oil pump conversion Concern is changed.As pressure release electromagnetic valve closes the effect with check valve 2, prevent gasoline from flowing into methanol fuel tank.Related oil pump turns The conversion of circuit and methanol controller is changed, existing ready-made technology is no longer described in detail.

This technology is simple and reliable, good stability, and versatility is wide, and low cost is easily fabricated, and technology application is：Using existing day So gas engine body, is first transformed into gasoline engine, recycles this technology, you can be converted into high-power methanol engine, and cost It is far below natural gas engine, fuel operation expense is far below diesel oil, and environmental protection, is " oil consumption rich and influential family " heavy truck, buses, engineering Car provides the possibility for burning methanol.

With reference in Fig. 2, being to be suitable for custom of driving, cold start-up circuit design manually need not be operated into fully automatic mode.Driver Routinely pattern is flame-out can leave.Described cold start-up circuit include diode, relay, delay circuit 1, delay circuit 2, Delay circuit 3, temperature controller, connected mode are：It is grounded with OV bonding after control line is connected with relay after diode, relay Device and atomizer positive pole are controlled by delay circuit 3.The connection pressure release electromagnetic valve of delay circuit 2 simultaneously controls delay circuit 3, temperature controller One end connects storage battery, and other end connection delay circuit 1, delay circuit 2, delay circuit 3, described chronotron 1 also control gasoline Pump.

Described temperature controller is placed in electromotor, for sense temperature, is prior art.

The Full-automatic cold start-up circuit course of work is：When engine temperature is less than 15 degree, temperature controller switches on power, now Petrol pump connected by delay circuit 1, and about 10 seconds time, delay circuit 2 connect pressure release electromagnetic valve, and about 5 seconds time, within 5 second time Complete gasoline displacement work in oily rail.Delay circuit 2 gives chronotron 3 one triggers after power-off in 5 seconds, and chronotron 3 is open-minded About 2 seconds, relay and atomizer positive pole is connected, atomizer starts to spray, inside oily rail and atomizer be entirely now Gasoline, so as to complete the preparation of cold start-up, whole process about 10 seconds and automatically execution are executed after terminating, can at any time by often Rule start electromotor.

It is adjustable that delay circuit 1, delay circuit 2, delay circuit 3 are time delay, carries out time increase and decrease as the case may be and adjusts Whole.

In double fuel methanol vehicle technical scheme, by way of atomizer in advance pre- spray, the technology of cold start-up is solved, Used as industry technology personnel, the optimization carried out based on this know-why is improved, and is not limited to being embodied as cited by this patent Mode, is in this patent rights protection scope.

Claims

1. a kind of cold start-up double fuel methanol vehicle, including a set of cold start-up circuit, double oil piping systems, oily rail and connecting line, double Oil piping system includes that gasoline passage and methanol oil circuit, gasoline passage and methanol oil circuit share an oily rail, wherein gasoline passage bag Petrol tank, petrol pump, pressure maintaining valve, check valve 1 is included, methanol oil circuit includes methanol fuel tank, methanol oil pump, methanol pressure maintaining valve, pressure release Electromagnetic valve, check valve 2, it is characterised in that：Several atomizers that methanol controller is placed on oily rail by connecting line connection, should Connecting line is connected with cold start-up circuit, and in addition cold start-up circuit is connected with pressure release electromagnetic valve and petrol pump, and oily rail is designed as built-in Oil pipe type oil rail, oily rail homonymy are provided with two ports, and one end connects gasoline passage, a termination methanol oil circuit, the built-in oil of oily rail Pipe produces fluid circuit, reaches displacement gasoline, and another end opening of oily rail is the oily rail of closed, described cold start-up circuit control Displacement gasoline simultaneously makes atomizer pre- spray in advance.

2. a kind of cold start-up double fuel methanol vehicle according to claim 1, it is characterised in that：Described cold start-up circuit Including diode, relay, delay circuit 1, delay circuit 2, delay circuit 3, temperature controller；Control line after diode with after Electrical equipment is connected, and relay is grounded with OV bonding, and delay circuit 3 connects atomizer positive pole and relay, the connection pressure release electricity of chronotron 2 Magnet valve and delay circuit 3, temperature controller one end connect storage battery, and the other end connects delay circuit 1, delay circuit 2, delay circuit 3, Wherein chronotron 1 connects petrol pump.