CN105863889A - Evaporated fuel processing device - Google Patents
Evaporated fuel processing device Download PDFInfo
- Publication number
- CN105863889A CN105863889A CN201610056497.8A CN201610056497A CN105863889A CN 105863889 A CN105863889 A CN 105863889A CN 201610056497 A CN201610056497 A CN 201610056497A CN 105863889 A CN105863889 A CN 105863889A
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- Prior art keywords
- valve
- evaporated fuel
- adsorption tanks
- fuel
- closing
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0836—Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M2025/0845—Electromagnetic valves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Abstract
The invention provides an evaporated fuel processing device; the processing device has an absorb tank and a seal valve, and is arranged in a vehicle; the evaporated fuel processing device can simply be mounted on the vehicle; an evaporated fuel path (31) allowing the evaporated fuel to flow in and out is arranged between a fuel tank (12) and the absorb tank (40), wherein the absorb tank (40) can absorb and release the evaporated fuel of the fuel tank (12); the evaporated fuel path (31) is provided with the seal valve (50) opening and closing so as to allow the evaporated fuel to enter and exit; an open/close electric valve (60) is arranged in the seal valve (50), and uses a steeping motor to enable a valve core to move relative to the valve seat, thus controlling the evaporated fuel to enter and exit; the electric open/close valve (60) is contained in and supports a valve outer casing, wherein the valve outer casing forms one piece with the absorb tank housing forming the housing of the absorb tank (40).
Description
Technical field
The present invention relates to a kind of evaporated fuel treating apparatus being equipped on vehicle.
Background technology
In the past, the vehicles such as automobile are equipped with for evaporations such as the gasoline vapours produced in fuel tank
Fuel carries out the evaporated fuel treating apparatus processed.Evaporated fuel treating apparatus has for adsorbing and departing from
The adsorption tanks of evaporated fuel and for blocking the closing of the evaporated fuel path between fuel tank and adsorption tanks
Valve (with reference to patent document 1).In closing valve, it is known to the structure utilizing magnetic valve to constitute.Specifically
Say, in closing valve, utilize the magnetic force of electromagnet to make valve body relative to valve seat relative movement, will evaporate
Fuel passage switches to open mode or closed mode.
Prior art literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2013-113197 publication
Summary of the invention
The problem that invention is to be solved
, in closing valve, characteristic based on this magnetic valve, valve master is created along with valve events
The impact sound of body.Therefore, also for making this impact sound not ring, closing valve must be independent mutually with adsorption tanks
Be installed on vehicle interior.But, if so closing valve is individually mounted in vehicle mutually with adsorption tanks
Portion, then lift-launch operation when evaporated fuel treating apparatus is equipped on vehicle complicates.
The present invention makes in light of this situation, and the problem to be solved in the present invention is have absorption
Tank and close valve and be equipped on the evaporated fuel treating apparatus of vehicle, it is possible to carry out this evaporation simply
Fuel treating equipment is equipped on lift-launch operation during vehicle.
For solving the scheme of problem
In order to solve the problems referred to above, the evaporated fuel treating apparatus of the present invention adopts the following technical scheme that.That is,
The evaporated fuel treating apparatus of the 1st technical scheme of the present invention is structure as follows: this evaporated fuel
Processing means includes: adsorption tanks, and it is for being evaporated absorption and the disengaging of fuel；Evaporated fuel path,
It is for entering to flow out in the chien shih vaporized fuel flow of described adsorption tanks with fuel tank；And closing valve, it is used
Opening and closing in the inflow and outflow being evaporated fuel in described evaporated fuel path；In described closing valve
Being provided with electrodynamic type open and close valve, this electrodynamic type open and close valve makes the valve body phase relative to valve seat by utilizing motor
Position moves the opening and closing of the inflow and outflow controlling evaporated fuel, and described electrodynamic type open and close valve is received
And it is supported on the valve shell that the adsorption tanks housing with the shell constituting described adsorption tanks is integrally forming.
According to the evaporated fuel treating apparatus of the 1st technical scheme, owing to electrodynamic type open and close valve is received and propped up
Hold the valve shell being integrally forming in the adsorption tanks housing with the shell constituting adsorption tanks, therefore, it is possible to will absorption
Tank and electrodynamic type open and close valve are as integrally processing.Thus, evaporated fuel treating apparatus is being carried
When vehicle, it is possible to so that adsorption tanks carry with electrodynamic type open and close valve all-in-one-piece the whole series.Thus,
Can carry out being equipped on evaporated fuel treating apparatus operation during vehicle simply.The most in other words,
Utilize the structure making adsorption tanks a whole set of with electrodynamic type open and close valve all-in-one-piece, it is possible to seek the simple of pipe arrangement
Change.Thereby, it is possible to reduce the pressure loss that pipe arrangement causes, it is possible to reduce the oiling when fuel tank filler
Resistance.
In the evaporated fuel treating apparatus of described 1st technical scheme, at the evaporated fuel of the 2nd technical scheme
Reason device is structure as follows: be provided with on described valve shell for making evaporated fuel relative to described
The opening port of adsorption tanks inflow and outflow, described opening port is directly linked to the tank end of described adsorption tanks
Mouthful.According to the evaporated fuel treating apparatus of the 2nd invention, direct owing to being located at the opening port of valve shell
It is linked to the tank port of adsorption tanks, therefore, it is possible to reduce the unnecessary interval closing between valve and adsorption tanks.
Thus, in the case of closing closing valve, it is possible to reduce and residue between these closing valve and adsorption tanks
Evaporated fuel.Thus, it is also possible to contribute to the little area of the area of passage of pipe arrangement, it is also possible to seek to make
The miniaturization of the motor that spool moves.
In the evaporated fuel treating apparatus of described 1st or described 2nd technical scheme, the 3rd technical scheme
Evaporated fuel treating apparatus is structure as follows: be provided with secondary path on described valve shell, and this pair is led to
Road is walked around this electrodynamic type open and close valve and becomes described evaporated fuel path, is provided with basis on described secondary path
The pressure of evaporated fuel controls the mechanical open valve closing of the opening and closing of the inflow and outflow of evaporated fuel, described machine
Described valve shell is received and be supported on to tool formula open and close valve.Evaporated fuel according to the 3rd technical scheme processes
Device, receives owing to being located at the mechanical open valve closing of secondary path and is supported on valve shell, therefore, it is possible to will inhale
Attached tank with there is the closing valve of mechanical open valve closing as integrally processing.Thereby, it is possible to closing
Valve arranges mechanical open valve closing, when can seek to be equipped on evaporated fuel treating apparatus vehicle simultaneously
The simplification of operation.
It addition, in the described 1st～the described 3rd in the evaporated fuel treating apparatus of any technical scheme, the
The evaporated fuel treating apparatus of 4 technical schemes is structure as follows: be set with on described valve shell
For supporting the motor support zone of the described motor of described electrodynamic type open and close valve, described valve shell with institute
State that the position that adsorption tanks housing combines is set in described valve shell in addition to motor support zone
Part.According to the evaporated fuel treating apparatus of the 4th technical scheme, valve shell with adsorption tanks housing phase
In conjunction with the part in addition to motor support zone that is set in valve shell of position.Thereby, it is possible to make profit
It is difficult to be transferred to adsorption tanks with the sound of motor generation, vibration etc., it is possible to enjoyment arranges the advantage of motor
Seek low noise and low vibration simultaneously.
Accompanying drawing explanation
Fig. 1 is the stereoscopic figure representing the outward appearance about evaporated fuel treating apparatus.
Fig. 2 is the schematic diagram schematically showing the engine system being equipped with evaporated fuel treating apparatus.
Fig. 3 is the stereogram representing and closing valve.
Fig. 4 is the left side view representing and closing valve.
Fig. 5 is the top view representing and closing valve.
Fig. 6 is the upward view representing and closing valve.
Fig. 7 is that Fig. 4 (VII)-(VII) alignment regards sectional view.
Fig. 8 is that Fig. 5 (VIII)-(VIII) alignment regards sectional view.
Fig. 9 is the sectional view of the closed valve state representing motor-driven valve.
Figure 10 is the sectional view of the valve opening state representing motor-driven valve.
Description of reference numerals
10, engine system；11, engine；12, fuel tank；13, feed pipe；14, case lid；
15, breather pipe；16, fuel supply system；17, petrolift；18, fuel measurement device；19, in case
Pressure sensor；20, fuel supply passageway；21, injector；22, conveying pipe；23, intake channel；
24, air filter；25, mass air flow sensor；26, air throttle；27, ORVR valve；28, fuel
Stop valve；30, evaporated fuel treating apparatus；31, vapor passageway (evaporated fuel path)；32, blow
Sweep path；35, blow down valve；36, ambient air passage；37, air filter；40, adsorption tanks；41、
Adsorption tanks housing；43, tank port；44, purging port；45, air port；50, valve is closed；51、
Valve shell；53, the 1st pipe portion；54, the 2nd pipe portion；55, the 1st admission extinguisher portion；56, the 2nd admission extinguisher portion；
57, steam opening port；58, adsorption tanks opening port；60, motor-driven valve (electrodynamic type open and close valve)；
61, the 1st valve chamber；62, the 2nd valve chamber；63, the 1st valve port；64, valve seat；65, the 1st passage portion；66、
2nd passage portion；67, primary path；68, stage portion；69, the 2nd valve port；70, secondary path；701、
Longitudinal passage portion；702, cross walkway portion；72, valve seat；73, stepper motor；74, valve guide；
743, bellying；744, cylinder axle portion；75, spool (Japanese: man's cap used in ancient times body)；751, cylindrical portion；752、
Valve plate portion；753, containment member；76, valve spring；77, output shaft；78, feed screw mechanism；80、
Overflow valve (mechanical open valve closing)；81, valve member；82, containment member；83, valve seat；84, spiral shell
Rotation spring；85, cover component；86, peripheral member.
Detailed description of the invention
Hereinafter, the embodiment being used for implementing the evaporated fuel treating apparatus of the present invention is described.Outside Fig. 1
See stereogram to show adsorption tanks 40 and close outside the evaporated fuel treating apparatus 30 that valve 50 is integrally forming
See.The schematic diagram of Fig. 2 diagrammatically illustrates the engine system 10 being equipped with evaporated fuel treating apparatus 30.
Evaporated fuel treating apparatus 30 is arranged in the engine system 10 of the vehicles such as automobile.As in figure 2 it is shown, send out
Motivational system 10 has engine 11 and for storing the fuel tank 12 of the fuel to engine 11 supply.?
Fuel tank 12 is provided with feed pipe 13.Feed pipe 13 is that the oil filler of end from it is led in fuel tank 12
Enter the pipe of fuel, at oil filler, so that case lid 14 can be provided with in the way of loading and unloading.The upper end of feed pipe 13
Breather pipe 15 is utilized to be connected with the gas-bearing formation portion in fuel tank 12 in portion.
Fuel supply system 16 it is provided with in fuel tank 12.Fuel supply system 16 has suction and adds compression ignition
Fuel in hopper 12 and discharge it petrolift 17, for detecting the fuel measurement device of the liquid level of fuel
18, for detecting as pressure sensor 19 in the case of the case internal pressure of the relative pressure relative to atmospheric pressure etc..
Utilize fuel that petrolift 17 drinks up in fuel tank 12 via fuel supply passageway 20 to engine 11,
The conveying pipe 22 in detail with the injector (Fuelinjection nozzle) 21 corresponding with each combustion chamber supplies,
Spray in intake channel 23 from each injector 21 afterwards.Intake channel 23 is provided with air filter
24, mass air flow sensor 25, air throttle 26 etc..
Evaporated fuel treating apparatus 30 has vapor passageway 31, purging path 32 and adsorption tanks 40, is inhaling
Closing valve 50 is integrally installed on attached tank 40.Vapor passageway 31 is located at by this closing valve 50, and is evaporated combustion
The opening and closing of the inflow and outflow of material (such as gasoline vapour).The upstream-side-end of vapor passageway 31 and fuel tank
Gas-bearing formation portion in 12 is connected.The end of downstream side of vapor passageway 31 is connected in adsorption tanks 40.It addition,
The upstream-side-end of purging path 32 is connected in adsorption tanks 40.Purging path 32 end of downstream side with
The passage portion of ratio air throttle 26 downstream of intake channel 23 is connected.
Adsorption tanks 40 are evaporated absorption and the disengaging of fuel.Adsorption tanks 40 are configured to have composition shell
Adsorption tanks housing 41.It is filled with in the inside of this adsorption tanks housing 41 as making evaporated fuel absorption and departing from
The activated carbon of sorbing material.Tank when being provided with on adsorption tanks 40 for making evaporated fuel absorption and departing from
Port 43, purging port 44 and air port 45 these three port.These three port 43,44,45 sets
It is set to the port shape with the tubular that the inside with adsorption tanks housing 41 is connected.Tank port 43 is to connect
Port in the vapor passageway 31 communicated with fuel tank 12.Purging port 44 is connected to and engine 11 phase
The port of logical purging path 32.Air port 45 is connected to the end of the ambient air passage 36 to atmosphere opening
Mouthful.
In gas-bearing formation portion in fuel tank 12, the upstream-side-end in vapor passageway 31 is provided with ORVR valve
(On Board Refueling Vapor Recovery valve: vehicle-mounted oil gas recovery valve) 27 and fuel cut-off
Valve (Cut Off Valve) 28.ORVR valve 27 is by the float valve (float of the buoyancy opening and closing utilizing fuel
Valve) trunkful constituted limits valve, is valve opening when the level of fuel of fuel tank 12 is below trunkful liquid level
State, if making level of fuel rise to trunkful liquid level, then float valve valve closing by oiling, thus blocks steam
Path 31.When utilizing ORVR valve 27 to block vapor passageway 31, fuel is filled up to feed pipe 13, refuels
The auto-stop mechanism of rifle carries out action, refuels and stops.It addition, fuel stop valve 28 is by utilizing fuel
The float valve of buoyancy opening and closing is constituted, and is generally maintained at valve opening state, the valve closing when vehicle roll, thus stops
Fuel in fuel tank 12 flows out to vapor passageway 31.
In the midway of purging path 32, blow down valve 35 is installed.Blow down valve 35 according to by ECU (Engine
Control Unit: control unit of engine) the purge flow rate corresponding valve opening amount that calculates be opened and closed control,
The most so-called purging controls.It addition, blow down valve 35 is such as by having stepper motor and controlling spool
Stroke and valve opening amount can be adjusted.It addition, blow down valve 35 is provided with solenoid, close under non-power status
Valve and by energising and valve opening.Adsorption tanks 40 are connected with the ambient air passage 36 to atmosphere opening.At this
The midway of ambient air passage 36 is provided with air filter 37.
If the evaporated fuel in fuel tank 12 enters in adsorption tanks 40 via vapor passageway 31, then it is adsorbed on
Sorbing material (activated carbon) in these adsorption tanks 40.Such as, in vehicle parking, at fuel tank 12
In the case of case inner pressure ratio atmospheric pressure becomes high pressure, open the motor-driven valve 60 closing valve 50, make fuel tank 12
Interior evaporated fuel is adsorbed in the sorbing material in adsorption tanks 40 via vapor passageway 31.It addition, at vehicle
In traveling, in the case of predetermined purging condition is set up, open blow down valve 35, make entering of engine 11
Gas negative pressure acts in adsorption tanks 40 via purging path 32.Like this, it is adsorbed in adsorption tanks 40
The evaporated fuel of sorbing material departs from from sorbing material, and the evaporated fuel of disengaging sucks with from ambient air passage 36
Air purged to intake channel 23 together and in engine 11 burn.
Vapor passageway 31 is equivalent to the evaporated fuel path of the present invention.Vapor passageway 31 is in adsorption tanks 40 and combustion
The chien shih vaporized fuel flow of hopper 12 enters to flow out.Here, in the side by vapor passageway 31 of adsorption tanks 40
It is provided with the closing valve 50 being integrally forming with these adsorption tanks 40.This closing valve 50 carries out opening of vapor passageway 31
Close, make the evaporated fuel inside inflow and outflow relative to adsorption tanks 40 via vapor passageway 31.Close valve 50
It is integrally forming with adsorption tanks 40, illustrates the most later.Close valve 50 to have as electrodynamic type open and close valve
Motor-driven valve 60 and as the overflow valve 80 of mechanical open valve closing.Here, motor-driven valve 60 is received and is supported on
Constitute the 1st admission extinguisher portion 55 (motor-driven valve admission extinguisher portion) of a part for valve shell 51.It addition, overflow valve
80 the 2nd admission extinguisher portion 56 (the overflow valve admission extinguishers receiving and being supported on the part constituting valve shell 51
Portion).
Then, illustrate to close the concrete structure of valve 50.Fig. 3 is the stereogram closing valve 50.It addition, Fig. 4
Being the left side view closing valve 50, Fig. 5 is the top view closing valve 50.It addition, Fig. 6 is to close valve 50
Upward view, Fig. 7 be Fig. 4 (VII)-(VII) alignment regard sectional view, Fig. 8 be Fig. 5 (VIII)-
(VIII) alignment regards sectional view.It addition, Fig. 9 is the sectional view of the closed valve state representing motor-driven valve 60, figure
10 is the sectional view of the valve opening state representing motor-driven valve 60.Hereinafter, when this closing valve 50 is described, based on
Before and after accompanying drawing is described, left and right upper and lower always illustrates.
Valve shell 51 becomes the formed products with resin as material.Valve shell 51 substantially have the 1st pipe portion 53,
2nd admission extinguisher portion 56 of admission extinguisher portion the 55 and the 2nd of pipe portion the 54, the 1st is the most integrally formed.1st pipe portion 53 and
2 pipe portions 54 are formed as the circular tube shaped of inner hollow.1st pipe portion 54 of pipe portion the 53 and the 2nd is formed as same caliber
Or the most same caliber.1st pipe portion 53 is connected to the pipe portion of the vapor passageway 31 communicated with fuel tank 12.
Therefore, the upstream-side-end in the 1st pipe portion 53 is set to steam opening port 57.This steam is with opening
Mouth port 57 is connected to vapor passageway 31.
2nd pipe portion 54 is connected to the pipe portion of the tank port 43 of adsorption tanks 40.Therefore, the 2nd pipe portion 54 times
Trip side end is set to adsorption tanks opening port 58.Adsorption tanks opening port 58 is equivalent to the present invention
Opening port.Adsorption tanks opening port 58 makes via closing the evaporated fuel of valve 50 from vapor passageway 31
Flow into towards adsorption tanks 40.Adsorption tanks opening port 58 is formed as the end of downstream side in the 2nd pipe portion 54.
Therefore, adsorption tanks opening port 58 be set to other constituting portion with valve shell 51 divide identical ground one become
Shape.Adsorption tanks opening port 58 is directly linked to the tank port 43 of adsorption tanks 40.Directly link as this,
Become adsorption tanks opening port 58 fix relative to the screw of tank port 43, adsorption tanks opening port 58
Press-ins relative to tank port 43 etc. are based on widely known connecting technology directly to be linked.That is, in absorption
The tank port 43 of tank 40, is the most integrally linked with closing valve 50 not via suitable path ground.
As it is shown in fig. 7, be formed with the 1st valve chamber 61 in the rearward end in the 1st admission extinguisher portion 55.It addition, two
It is interconnected via the 1st valve chamber 61 in pipe portion 53,54.The opening by the 1st valve chamber 61 side in the 1st pipe portion 53
Portion is formed as the 1st valve port 63.1st valve port 63 is formed as the internal diameter of the internal diameter in the slightly less than the 1st pipe portion 53.
The peristoma portion of the 1st valve port 63 is formed as valve seat 64.It is formed along and the 1st valve port 63 in 1st pipe portion 53
The 1st passage portion 65 that the most identical direction extends and bends to the left.The 2nd is formed as in 2nd pipe portion 54
Passage portion 66, in the side contrary with the side (rear side) by the 1st passage portion 65 of the 1st valve port 63, i.e.
Front side, the 2nd passage portion 66 is along the right direction different from axial (fore-and-aft direction) of the 1st passage portion 65
Extend.The 1st passage portion the 65 and the 2nd passage portion 66 is utilized to define the primary path 67 of elbow shape.
As shown in Figure 8, in the bottom in the 2nd admission extinguisher portion 56, it is formed in same heart shaped and makes internal diameter diminish
Stage portion 68.Hollow bulb in stage portion 68 is formed as being connected with the 2nd valve chamber 62 in the 2nd admission extinguisher portion 56
The 2nd logical valve port 69.2nd valve port 69 utilizes the 1st passage portion 65 between itself and the 2nd admission extinguisher portion 56 and
1 pipe portion 53 connects.On the end face by the 2nd valve chamber 62 side of stage portion 68, it is configured with metal in same heart shaped
The valve seat 72 of the annulus tabular of system.
The internal diameter of valve seat 72 is formed as same internal diameter or the most same internal diameter with the internal diameter of stage portion 68.Valve seat
The peripheral part of 72 is embedded in the 2nd admission extinguisher portion 56.It is formed on edge in the leading section in the 2nd admission extinguisher portion 56
The longitudinal passage portion 701 that lower direction extends.The upper end in longitudinal passage portion 701 is connected with the 2nd valve chamber 62.
Valve seat 72 is run through in longitudinal passage portion 701.It is formed in the left part in the 1st admission extinguisher portion 55 and prolongs in front-rear direction
The cross walkway portion 702 stretched.The leading section in cross walkway portion 702 is connected with the 1st valve chamber 61.The most logical
The rearward end in road portion 702 is connected with the bottom in longitudinal passage portion 701.That is, utilize the 2nd valve port 69,
2nd valve chamber 62, longitudinal passage portion 701, cross walkway portion the 702 and the 1st valve chamber 61 constitute and walk around the 1st
The secondary path 70 of valve port 63.This pair path 70 is provided at the path of the inside of valve shell 51, becomes to walk around
The evaporated fuel path that the mode of motor-driven valve 60 communicates with overflow valve 80.
Motor-driven valve 60 is constituted the most as shown in Figure 9 and Figure 10.Motor-driven valve 60 is received and is supported on work
For in the 1st admission extinguisher portion 55 of a part for valve shell 51.Therefore, the 1st admission extinguisher portion 55 is set to valve
In shell 51, the motor support zone of supports electric valve 60 stepper motor 73.That is, close valve 50 to lead to
Cross make except as adsorption tanks in addition to the 1st admission extinguisher portion 55 of motor support zone, the 2nd pipe portion 54 with opening
Mouth port 58 combines with adsorption tanks housing 41 and is integrally forming with adsorption tanks 40.
Motor-driven valve 60 has stepper motor 73, valve guide 74, spool 75 and valve spring 76.It addition, spool
75 spools being equivalent to the present invention.Stepper motor 73 is axially arranged on the 1st admission extinguisher for fore-and-aft direction with it
In portion 55.Stepper motor 73 has can the output shaft 77 of positive and negative rotation.Output shaft 77 points to rear, and
It is arranged in the 1st valve chamber 61 in the 1st admission extinguisher portion 55 in same heart shaped.The outer peripheral face of output shaft 77 is formed
There is external screw thread.Stepper motor 73 is equivalent to the motor of the present invention.This stepper motor 73 includes brushless motor.
It addition, spool 75 is equivalent to the valve body of the present invention.That is, motor-driven valve 60 becomes by utilizing stepper motor
The 73 relative positions making spool 75 be equivalent to valve seat 64 move the inflow and outflow controlling evaporated fuel
The valve of opening and closing.
Valve guide 74 is by can vertically, be configured in the 1st valve chamber 61 in the way of i.e. fore-and-aft direction moves.
Valve guide 74 is limited surrounding wall portion (the 1st admission extinguisher relative to the 1st valve chamber 61 by not shown spline parts
Portion 55) rotate around direction of principal axis.The bellying 743 of valve guide 74 separates relative to the internal face of the 1st valve chamber 61
Predetermined is fitted together to gap.The internal screw-thread screw of the inner peripheral surface in cylinder axle portion 744 is in stepper motor 73
The external screw thread of output shaft 77.Therefore, valve guide 74 is according to the positive and negative rotation of output shaft 77 vertically (front and back
Direction) move.It addition, utilize the internal thread of the external screw thread of output shaft 77 and the inner peripheral surface of spool 75
Constitute feed screw mechanism 78.
It is made up of it addition, be provided with between the bellying 743 of valve seat 64 and valve guide 74 helical spring
Secondary spring 79.Secondary spring 79 suppresses feed screw machine by always forwards exerting a force valve guide 74
The backlash of structure 78.Spool 75 has the cylindrical portion 751 of cylindrical shape and opens for closing the rear end of cylindrical portion 751
The valve plate portion 752 of oral area.Valve plate portion 752 is provided be made up of rubber-like elastic materials circular
1st containment member 753.Spool 75 is in same heart shaped and can be arranged in the way of moving in front-rear direction
In valve guide 74.1st containment member 753 is relative with valve seat 64 in the way of can being connected to valve seat 64.Separately
Outward, spool 75 when circumferentially by valve guide 74 spline can (fore-and-aft direction) exist vertically
The mode moved in preset range is connected with valve guide 74.It addition, valve spring 76 is by helical spring structure
Become, always spool 75 is exerted a force to closing direction relative to valve guide 74.
It addition, under the valve opening state of motor-driven valve 60, if making stepper motor 73 carry out valve closing work, then make
Output shaft 77 rotates to closing direction, makes valve guide 74 and spool 75 rearward move by feed screw mechanism 78
Dynamic.Like this, spool 75 is made to be seated at valve seat 64 and become closed valve state.If it addition, making valve guide
74 the most rearward move, then the link between valve guide 74 and spool 75 is released from.On the other hand,
Under the closed valve state of motor-driven valve 60, if making stepper motor 73 carry out valve opening work, then make output shaft 77 edge
Valve opening position rotates, and makes valve guide 74 forwards move by feed screw mechanism 78.Like this,
Spool 75 is made to leave from valve seat 64 and become valve opening state.
As shown in Figure 8, the 2nd admission extinguisher of the part as valve shell 51 is received and be supported on to overflow valve 80
In portion 56.Overflow valve 80 controls the opening and closing of the inflow and outflow of evaporated fuel via secondary path 70.This overflow valve
The open and close controlling of the inflow and outflow of 80 evaporated fuels carried out becomes corresponding with the pressure of evaporated fuel and controls
System.This overflow valve 80 eliminates detailed view, but has malleation overflow valve mechanism in same heart shaped and bear
Pressurized overflow valve system.These valve systems are in same heart shaped and can be arranged in the 2nd in the way of moving up and down
In 2nd valve chamber 62 in admission extinguisher portion 56.That is, have can be the 2nd of the 2nd admission extinguisher portion 56 for overflow valve 80
The valve member 81 moved up and down in valve chamber 62.If the downward side shifting of valve member 81, then will be configured at valve member
The containment member 82 of the downside of 81 presses to downside.The containment member 82 pressed to downside is set to can be close
Closed valve state is become together in valve seat 83.It addition, be configured with helical spring 84 in the upside of valve member 81.
Valve member 81 is exerted a force by helical spring 84 to the lower section becoming valve closing direction.It addition, at helical spring 84
Upside is provided with the cover component 85 utilizing peripheral member 86 to prevent from coming off.
According to above-mentioned evaporated fuel treating apparatus 30, it is possible to play following action effect.That is, according to above-mentioned
Evaporated fuel treating apparatus 30, owing to motor-driven valve 60 is received and is supported on and the shell constituting adsorption tanks 40
The valve shell 51 that adsorption tanks housing 41 is integrally forming, therefore, it is possible to using adsorption tanks 40 with motor-driven valve 60 as one
Body processes.Thus, when evaporated fuel treating apparatus 30 is equipped on vehicle, it is possible to so that inhaling
Attached tank 40 carries with motor-driven valve 60 all-in-one-piece the whole series.Thereby, it is possible to carry out simply evaporating
Fuel treating equipment 30 is equipped on operation during vehicle.The most in other words, utilization makes adsorption tanks 40 and electricity
The structure that dynamic valve 60 all-in-one-piece is a whole set of, it is possible to seek to purge the simplification of path 32 pipe arrangement such as grade.Thus,
The pressure loss that pipe arrangement causes can be reduced, it is possible to reduce the oiling resistance when fuel tank 12 refuels.
According to above-mentioned evaporated fuel treating apparatus 30, owing to being located at the adsorption tanks opening port of valve shell 51
The 58 tank ports 43 being directly linked to adsorption tanks 40, close between valve 50 and adsorption tanks 40 therefore, it is possible to reduce
Unnecessary interval.Thus, in the case of closing closing valve 50, it is possible to reduce and residue in this closing
Evaporated fuel between valve 50 and adsorption tanks 40.Thus, it is also possible to contribute to the 2nd pipe portion 54 pipe arrangement such as grade
The little area of the area of passage, it is also possible to seek the miniaturization of the stepper motor 73 making spool 75 move.
According to above-mentioned evaporated fuel treating apparatus 30, receive owing to being located at the overflow valve 80 of secondary path 70 and prop up
Hold in valve shell 51, therefore, it is possible to adsorption tanks 40 and the closing valve 50 with overflow valve 80 are come as one
Process.Thereby, it is possible to arrange overflow valve 80 in closing valve 50, can seek to fire evaporation simultaneously
The simplification of operation when material processing device 30 is equipped on vehicle.It addition, process dress according to above-mentioned evaporated fuel
Put 30, the position combined with adsorption tanks housing 41 of valve shell 51 be set in valve shell 51 except conduct
Beyond 1st admission extinguisher portion 55 of motor support zone, the adsorption tanks opening port 58 in the 2nd pipe portion 54.
Thereby, it is possible to make sound, vibration etc. produced by stepper motor 73 be difficult to be transferred to adsorption tanks 40.Thus,
Low noise and low vibration is sought while stepper motor 73 can be set.
It addition, in the power tool of the present invention, be not limited to the evaporated fuel of above-mentioned embodiment
The structure of processing means 30, structure that such as can also change the inside of adsorption tanks 40 etc. and constitute.It addition,
About engine system 10, it is also possible to change suitable position and constitute.
Claims (4)
1. an evaporated fuel treating apparatus, wherein,
This evaporated fuel treating apparatus includes:
Adsorption tanks, it is for being evaporated absorption and the disengaging of fuel；
Evaporated fuel path, it becomes a mandarin for the chien shih vaporized fuel flow at described adsorption tanks with fuel tank
Go out；And
Closing valve, it is for being evaporated opening of the inflow and outflow of fuel in described evaporated fuel path
Close；
Being provided with electrodynamic type open and close valve in described closing valve, this electrodynamic type open and close valve is by utilizing motor to make valve
Main body moves the opening and closing of the inflow and outflow controlling evaporated fuel relative to the relative position of valve seat,
Described electrodynamic type open and close valve is received and is supported on and the absorption ladle bowl of the shell constituting described adsorption tanks
The valve shell that body is integrally forming.
Evaporated fuel treating apparatus the most according to claim 1, wherein,
Described valve shell is provided with for making evaporated fuel opening relative to described adsorption tanks inflow and outflow
Mouth port,
Described opening port is directly linked to the tank port of described adsorption tanks.
Evaporated fuel treating apparatus the most according to claim 1 and 2, wherein,
Being provided with secondary path on described valve shell, this pair path is walked around described electrodynamic type open and close valve and becomes institute
State evaporated fuel path,
Described secondary path is provided with the pressure according to evaporated fuel and controls the inflow and outflow of evaporated fuel
The mechanical open valve closing of opening and closing,
Described valve shell is received and be supported on to described mechanical open valve closing.
4. according to the evaporated fuel treating apparatus according to any one of claims 1 to 3, wherein,
Described valve shell is set with the motor of described motor for supporting described electrodynamic type open and close valve
Support zone,
The position combined with described adsorption tanks housing of described valve shell is set in described valve shell
Part in addition to motor support zone.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015024086A JP6320947B2 (en) | 2015-02-10 | 2015-02-10 | Evaporative fuel processing equipment |
| JP2015-024086 | 2015-02-10 |
Publications (2)
| Publication Number | Publication Date |
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| CN105863889A true CN105863889A (en) | 2016-08-17 |
| CN105863889B CN105863889B (en) | 2019-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610056497.8A Active CN105863889B (en) | 2015-02-10 | 2016-01-27 | Evaporated fuel treating apparatus |
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| Country | Link |
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| JP (1) | JP6320947B2 (en) |
| CN (1) | CN105863889B (en) |
Cited By (4)
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| JP2019211020A (en) * | 2018-06-06 | 2019-12-12 | 愛三工業株式会社 | Fluid control valve |
| CN110621528A (en) * | 2017-06-09 | 2019-12-27 | 全耐塑料高级创新研究公司 | Vehicle fuel system with vapor control |
| CN112219052A (en) * | 2018-06-06 | 2021-01-12 | 爱三工业株式会社 | Fluid control valve and evaporated fuel processing apparatus |
| CN112555064A (en) * | 2019-09-25 | 2021-03-26 | 马勒国际有限公司 | Fuel adsorption device and evaporated fuel treatment device using same |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105863889B (en) | 2019-03-12 |
| JP6320947B2 (en) | 2018-05-09 |
| JP2016148250A (en) | 2016-08-18 |
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