CN204783286U

CN204783286U - Switch fast car double fuel guide rail multi -ported valve

Info

Publication number: CN204783286U
Application number: CN201520438334.7U
Authority: CN
Inventors: 胡松平; 孙霞林
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-06-25
Filing date: 2015-06-25
Publication date: 2015-11-18
Anticipated expiration: 2025-06-25

Abstract

The utility model discloses a switch fast car double fuel guide rail multi -ported valve belongs to car double fuel guide rail auto -change over device field, including casing, case piston, there is the through -hole in the casing, be equipped with mobilizable case piston in the through -hole, through -hole two is sealed, and a plurality of guide rail mounting holes that have a perfect understanding with the both ends through -hole are offered to two ends of casing, have a perfect understanding each other with a plurality of guide rail mounting holes of one end, still open the sprayer mounting hole that has a perfect understanding with the through -hole middle part on the casing, install the solenoid valve in the casing, chock and middle connecting rod that the case piston includes both ends are equipped with the chock counter bore on the two end inner walls of casing, and the chock counter bore is linked together with the guide rail mounting hole, and the through -hole internal stability of casing is equipped with and overflows the board, are linking firmly the spring holder on overflowing the board, are equipped with the spring in the spring holder. Fast switch over reliably can be realized between two kinds or the above automobile fuel guide rail to this device, and the sprayer that can share, to persist the fuel ratio less, do not influence start next day, when switching compounding not, be suitable for extensively.

Description

Switch fast Double-fuel guide rail multiple-way valve

Technical field

The utility model relates to a kind of Double-fuel guide rail fuel changing-over device, particularly a kind ofly switches fast Double-fuel guide rail multiple-way valve.

Background technique

Along with the concern to vehicle economy and alternative fuel Economy, the feature of environmental protection, automaker and Market for refitting turn to more economically, Cleaning Equipment, to raise the efficiency and energy-conserving and environment-protective, so effective use of alternative fuel or dual-purpose fuel or pluralities of fuel, need the distinct configuration of traditional fuel motor associated components, time wherein for changing two kinds of fuel charge, need a kind of good COMM communication.General single track single spraying system of the prior art, by a set of methyl alcohol pipelines in parallel such as solenoid valves before the spray rail and sparger of former automobile, structure is simple, repacking aspect, but can not realize between gasoline-methyl alcohol changing completely, causes methyl alcohol cold start-up difficulty.Patent 201320765146.6 dual fuel injection device, although solve the problem changed completely between gasoline-methyl alcohol, but but there is following defect: one is the mistake oil mass that the problems such as the blocking of filter screen after the filter precision of filter screen or Long-Time Service can affect fuel, and the fuel directly affecting sparger sprays and supply, two is in motor fuel long-term work, and the gap between piston and piston in cylinder wall is too little, and the minute impurities of fuel can cause the flexibility of piston, thus affects the seal of wherein fuel, causes the mutual mixing of fuel, three is when piston moves to a side, one side's fuel pressure can keep in a period of time, cause piston cannot be airtight and cause fuel to flow mixing to the opposing party, two kinds of fuel all can be mixed in container or fuel tank mutually, if too much at the methyl alcohol of petrol tank mixing, can cause vehicle startup and to motor, the etching problem of pipeline, if the gasoline cold start-up mixing too much methyl alcohol is on the other hand too poor numerous, when engine temperature cannot reach methyl alcohol best combustion temperature, bad or the incomplete methyl alcohol of fuel can penetrate into cylinder body rare Xi lubricating oil by the gap between piston ring and cylinder bore wall, the premature abrasion of motor is caused to cause engine damage.Four is that the combined amount of two kinds of fuel in valve or alternative fuel retain relatively many, motor can be caused when fuel is changed mutually to shake or next day time difficulty in starting even cannot start.Five is at three-way valve top pipe laying or guide rail, adds rail height, relatively little between compact type vehicle engine air, can affect and install and use, and installing vehicle can reduce.Chinese patent application 2015201169426 switches fast Double-fuel guide rail multiple-way valve, adopt moveable ball valve core, through hole two ends are provided with two end face cylinder plugs, built-in channel is established in end face cylinder plug, end face cylinder plug surface has the oil inlet hole connected with this built-in channel, although this valve solves the reliable switching between two kinds of automotive fuels, line seal problem, ball valve core piston effectively reduces the heterodromous resistance of valve core piston, not drift, but, its requirement on machining accuracy is very high, two end face cylinder plug structures are complicated, cost is high, and when Fuel switching, the pressure advanced by fuel completely makes ball valve core move switching, when wherein fuel pressure is higher than another side fuel pressure on one side, because one side pressure pressure release is slow, ball valve cannot carry out airtight to another side fuel the short time, may cause during switching and shake or cause engine misses, affect driving safety.

Summary of the invention

The purpose of this utility model be to provide a kind ofly to realize between two kinds or more automotive fuels rapidly, Double-fuel guide rail multiple-way valve that reliably switching of switching, valve core piston not drift, working stability is fast, make two kinds or more fuel as methyl alcohol, gasoline, a sparger can be shared and reliable performance be motor feed.

The utility model proposes and a kind ofly switch fast Double-fuel guide rail multiple-way valve, comprise housing, valve core piston, through hole is had in housing, moveable valve core piston is provided with in through hole, through hole two seals, it is characterized in that, housing two end offers multiple guide rails assembling hole through with the two ends of through hole, multiple guide rails assembling holes with one end are mutually through, housing also has with through hole in the middle part of through sparger mounting hole, in housing, solenoid valve is installed, described valve core piston comprises the chock at two ends and middle connecting rod, housing two end inwall is provided with chock counterbore, chock counterbore is connected with guide rails assembling hole, overcurrent plate is installed with in the through hole of housing, overcurrent plate there is multiple flowing hole, overcurrent plate is connected spring seat, spring seat is built with spring.

Preferably, be provided with the bottom outlet allowing connecting rod pass at the bottom of spring seat, spring seat mouth is towards side chock, and this side chock is connected to spring pressure cylinder, and spring pressure cylinder and spring seat are tightly connected movably.

Housing two ends are also provided with attachment hole, and guide rails assembling hole is communicated with chock counterbore by attachment hole.

Described solenoid valve is coil type or Hall-type solenoid valve; Described sparger mounting hole axis is vertical with each guide rails assembling axially bored line.

Some guide rails assembling holes are divided into through hole two ends symmetrically, and the guide rails assembling hole being positioned at same one end is one or more, respectively fuel rail is housed in each guide rails assembling hole.

Described through hole two ends are respectively provided with two guide rails assembling holes, and the Double-fuel guide rail multiple-way valve that multiple switching is fast can be contained on each air inlet single tube of automotive air intake menifold respectively, and the fuel rail between two adjacent two multiple-way valves is interconnected by connecting tube.

Multiple guide rails assembling axially bored lines with one end are positioned at same plane.

The beneficial effects of the utility model are: adopt the magnetic attraction force of solenoid valve to accelerate the motion of valve core piston, switch rapider, can the short time carry out airtight to another side fuel, the multiple-way valve avoiding Purely mechanical switches the defect shaking or cause engine misses when easily causing switching slowly, and after have employed the working state of setting, during switching position when its normal orientation when namely valve core piston is in solenoid valve no electric circuit or solenoid valves, valve core piston is because of under the dual-pressure effect of electromagnetic field suction and Fuel Petroleum hydraulic coupling or spring pressure and replacement fuel pressure, not drift, working stability, with can be contained in respectively in rows on each air inlet single tube of automotive air intake menifold, guide rail between the Double-fuel guide rail multiple-way valve that two adjacent switchings are fast is interconnected by connecting tube, both the effect of the sparger fuel feeding into the double fuel guide rail multiple-way valve on this air inlet single tube and correspondence thereof had been played, play again the effect into the double fuel guide rail multiple-way valve transmission fuel on other air inlet single tubes, even if the guide rail in orthodox car fuel system, rail brackets, the function of Fuel switching valve has all been integrated on this double fuel guide rail multiple-way valve, serve and reduce costs, save the effect of installing space, adopt the mode such as Quick-action type flexible pipe or FERRULETYPE hard tube to be connected between split type multiple valves, the installation of various vehicle can be widely used in, valve core piston is solid construction, does not establish flow channels in it, and processing is simple, moves rapider than establishing the valve core piston of flow channels, adopt flowing hole overcurrent, than faster by the flow channels overcurrent in valve core piston, utilize the magnetic force of solenoid valve that valve core piston fast reciprocating is moved, with armature on valve core piston, spool switch rapidly, motion is more reliable, than the hydraulic pressure or atmospheric pressure of depending merely on uid feed fuel promote spool switch faster, more put in place, work more reliable, in a word, the utility model can realize promptly, reliably switching between two kinds of automotive fuels, makes two kinds or more fuel as methyl alcohol and gasoline or ethanol and gasoline, a sparger can be shared and reliable performance be motor feed.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model embodiment one;

Fig. 2 is a direction view of the utility model Fig. 1;

Fig. 3 is assembly structure schematic diagram of the present utility model

Reference character: housing 1, through hole 2, guide rails assembling hole 3A.3B, sparger mounting hole 4, solenoid valve 5, chock 6, connecting rod 7, chock counterbore 8, overcurrent plate 9, flowing hole 10, spring seat 11, spring 12, bottom outlet 13, spring pressure cylinder 14, attachment hole 15, fuel rail 16.

Embodiment

Embodiment one

With reference to Fig. 1, Fig. 2, the present embodiment comprises housing 1, valve core piston, through hole 2 is had in housing, moveable valve core piston is provided with in through hole 2, through hole two seals, housing two end offers multiple guide rails assembling hole 3A through with the two ends of through hole, 3B, multiple guide rails assembling holes with one end are mutually through, housing 1 also has with through hole in the middle part of through sparger mounting hole 4, solenoid valve 5 is installed in housing, solenoid valve 5 controls valve core piston, when solenoid valve 5 no electric circuit, valve core piston is in the normal state position, each guide rails assembling hole 3A of through hole 2 one end and sparger mounting hole 4 mutual conduction, when solenoid valve 5 is energized, valve core piston is movable to switching position, mutual conduction between each guide rails assembling hole 3B of through hole 2 the other end and sparger mounting hole 4.Housing valve core piston comprises the chock 6 at two ends and middle connecting rod 7, housing two end inwall is provided with the chock counterbore 8 adapted with chock profile, overcurrent plate 9 is installed with in the through hole 2 of housing, overcurrent plate there is multiple flowing hole 10, overcurrent plate 9 is connected spring seat 11, spring seat 11 is built with spring 12, the bottom outlet 13 allowing connecting rod pass is provided with at the bottom of spring seat, spring seat mouth is towards side chock 6, this side chock is connected to spring pressure cylinder 14, and spring pressure cylinder 14 and spring seat 11 are tightly connected movably; Housing two ends are also provided with attachment hole 15, and guide rails assembling hole 3A, 3B are communicated with chock counterbore 8 by attachment hole 15.Described solenoid valve 5 is coil type or Hall-type solenoid valve etc.; Described sparger mounting hole 4 axis and each guide rails assembling hole 3A, 3B axes normal.

With reference to Fig. 3, described through hole 2 two ends are respectively provided with two guide rails assembling holes, the Double-fuel guide rail multiple-way valve that multiple switching is fast can be contained on each air inlet single tube of automotive air intake menifold respectively, and the fuel rail 16 between two adjacent multiple-way valves is interconnected by connecting tube.

During vehicle cold start-up, solenoid valve 5 no electric circuit, valve core piston is in the normal state position, and gasoline enters sparger by the path of guide rails assembling hole 3A and sparger mounting hole 4, and motor is gasoline enable mode.Motor car engine condition value as temperature, pressure, rotating speed, etc. reach setting value or compulsory mode, substitute fuel oil pump, as unlatchings such as methyl alcohol oil pumps, solenoid valves, valve core piston moves to the switching position of opposite side, substitute fuel is by being path between guide rails assembling hole 3B and sparger mounting hole 4, and substitute fuel such as methyl alcohol enters sparger, and motor is substitute fuel enable mode.Motor is under some specific environment, as being depleted to setting value when substitute fuel without pressure or without substitute fuel, this setting value is obtained by pressure transducer and liquid level sensor, or under the environment such as the short circuit of other control unit ECU perception, open circuit, air inlet pressure be abnormal, solenoid valve 5 power-off, it is enable that motor is directly switch to gasoline mode.

Claims

1. one kind switches fast Double-fuel guide rail multiple-way valve, comprise housing, valve core piston, through hole is had in housing, moveable valve core piston is provided with in through hole, through hole two seals, it is characterized in that, housing two end offers multiple guide rails assembling hole through with the two ends of through hole, multiple guide rails assembling holes with one end are mutually through, housing also has with through hole in the middle part of through sparger mounting hole, in housing, solenoid valve is installed, described valve core piston comprises the chock at two ends and middle connecting rod, housing two end inwall is provided with chock counterbore, chock counterbore is connected with guide rails assembling hole, overcurrent plate is installed with in the through hole of housing, overcurrent plate there is multiple flowing hole, overcurrent plate is connected spring seat, spring seat is built with spring.

2. the Double-fuel guide rail multiple-way valve that switching according to claim 1 is fast, it is characterized in that, be provided with the bottom outlet allowing connecting rod pass at the bottom of spring seat, spring seat mouth is towards side chock, this side chock is connected to spring pressure cylinder, and spring pressure cylinder and spring seat are tightly connected movably.

3. the Double-fuel guide rail multiple-way valve that switching according to claim 1 is fast, it is characterized in that, housing two ends are also provided with attachment hole, and guide rails assembling hole is communicated with chock counterbore by attachment hole.

4. the Double-fuel guide rail multiple-way valve that switching according to claim 1 is fast, is characterized in that, described solenoid valve is coil type or Hall-type solenoid valve; Described sparger mounting hole axis is vertical with each guide rails assembling axially bored line.

5. the Double-fuel guide rail multiple-way valve that switching according to claim 1 is fast, it is characterized in that, some guide rails assembling holes are divided into through hole two ends symmetrically, and the guide rails assembling hole being positioned at same one end is one or more, respectively fuel rail is housed in each guide rails assembling hole.

6. the Double-fuel guide rail multiple-way valve that switching according to claim 5 is fast, it is characterized in that, described through hole two ends are respectively provided with two guide rails assembling holes, the Double-fuel guide rail multiple-way valve that multiple switching is fast can be contained on each air inlet single tube of automotive air intake menifold respectively, and the fuel rail between two adjacent two multiple-way valves is interconnected by connecting tube.

7. the Double-fuel guide rail multiple-way valve that switching according to claim 5 is fast, is characterized in that, the multiple guide rails assembling axially bored lines with one end are positioned at same plane.