CN2532251Y - LPG motorcycle engine - Google Patents
LPG motorcycle engine Download PDFInfo
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- CN2532251Y CN2532251Y CN 00266328 CN00266328U CN2532251Y CN 2532251 Y CN2532251 Y CN 2532251Y CN 00266328 CN00266328 CN 00266328 CN 00266328 U CN00266328 U CN 00266328U CN 2532251 Y CN2532251 Y CN 2532251Y
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Abstract
The utility model relates to an engine applicable for a LPG motor which adopts a vertical type, water cooling and four-stroke structure. A supply device which is LPG-fired is composed of a LPG cylinder, an electromagnetic valve, a LPG vaporization pressure regulator and a control mechanism of the regulator, and a fixer; relative to the position of the engine, the LPG cylinder is arranged back and is connected in series and in sequence with the electromagnetic valve, the vaporization pressure regulator, the fixer and the inlet pipe of the engine by a LPG conveying tube; the cylinder body has a welding seam and a multifunctional combination valve is installed on the cylinder body; the vaporization pressure regulator integrates a preheating water jacket, a first grade and a second grade pressure regulating valves, an idler adjuster and a vacuum self-locking valve.
Description
The utility model relates to motor Vehicular liquefied petroleum gas (abbreviating liquid gas as) motor.
At present, existing LPG Motorcycle Engine, because Air cooler is many, it is big that liquefied petroleum gas (LPG) vaporization regulator obtains thermal change, unfavorable to optimizing engine air-fuel ratio, the northern area severe winter makes petroleum engine be difficult for starting.In addition, the combination brake switch and proporting that existing motor vehicular engine is supplied with the gas storage steel cylinder of system's employing does not possess automatic limit overshoot dress function and liquid level Presentation Function, when the gas storage steel cylinder fills petroleum gas, must pull down the gas storage steel cylinder and weigh, often dismounting, steel cylinder damages easily, and petroleum gas is revealed easily, attract unsafe factor, and use inconvenience.Existing combustion gas in market and air mixing device mostly are Wen's tubular type, and this structure influence motor inflation performance improves, and power character is descended, and concerning the motorcycle engine of high speed single cylinder, practical Venturi tube mixer can't be realized full performance of operating condition optimization especially.
The purpose of this utility model is to overcome the above-mentioned shortcoming that prior art exists, and provides that a kind of to have usability good, the LPG Motorcycle Engine of the liquefied petroleum air feed system that Security is good.
The purpose of this utility model is such realization, and accompanying drawings is as follows:
LPG Motorcycle Engine mainly is by connecting rod, distribution device and fuel supply system, igniting system, cooling system, lubricating system, starting system waits part to form, it is characterized in that its employing is vertical, water-cooled, the four-stroke structure, with the liquefied petroleum gas (LPG) is the supplier of fuel, by liquid gas gas storage steel cylinder B, solenoid valve C, the vaporization pressure governor D and the control mechanism thereof of liquid gas, mixer E forms, gas storage steel cylinder B, solenoid valve C, vaporization pressure governor D, mixer E is connected by the petroleum gas delivery line successively with the suction tude of motor A, the steel cylinder body 43 of liquid gas gas storage steel cylinder B is a weld seam, multi-functional combination brake switch and proporting 44 is installed on the steel cylinder body 43, vaporization pressure governor D collection liquefied petroleum gas hot water jacket, the one-level pressure regulator valve, the secondary pressure regulator valve, slow running adjustment, the vacuum latching valve is in one, the liquefied petroleum gas for preheating device adopts ring-shaped water jacket 26 structures that are arranged on the housing 28, and two water pipe adapters 19 of this ring-shaped water jacket link to each other with pump intake with the radiator outlet of water cooling system respectively by water pipe.
The LPG Motorcycle Engine that the utility model provides is vertical, water-cooled, four-stroke liquified petroleum gas engine, the cooling system of motor reaches water pipe a, b, c, d, e and cylinder head, block jacket composition by thermostat F, radiator G, fan clutch K, water pump H, fan J, water inlet of radiator Z.
The LPG Motorcycle Engine that the utility model provides is not only with LP gas fuel instead of gasoline fuel, and the compression ratio ignition advance angle is all done best the adjustment by the requirement of LP gas fuel physical property.The cooling system of water cooled engine is communicated with the Preheating unit of the vaporization pressure governor D of liquefied petroleum gas (LPG), for it provides thermal source.It adopts than the pressure governor of air-cooled LPG Motorcycle Engine, and other form thermals source are stable, reliable, cleaning, pollution-free.
Liquefied petroleum gas (LPG) is supplied with flow process: during engine operation, solenoid valve C opens, liquefied petroleum gas (LPG) is flowed out by the liquid outlet 50 of gas storage steel cylinder B, pass through delivery line successively, solenoid valve C, the suction port of vaporization pressure governor D is a fuel inlet connector 30, enter vaporization pressure governor D. liquid gas after overflash and pressure regulation, the gaseous state petroleum gas that reaches atmosphere pressure state is that fuel outlet joint 31 flows out from the air outlet of vaporization pressure governor, the fuel gas inlet 85 that the process pipeline enters mixer E, again after the amount seam metering that forms through gas metering assembly 84, enter in the air passageways between the plunger right side of mixer E housing 79 inwalls and plunger diaphragm unit 81 and air mixing.The corresponding operating mode with motor of air fuel ratio of the mixed gas that the process mixer is regulated reaches optimum Match, makes motor reach optimal combustion state.
This motor is compared with existing motorcycle engine and is had the following advantages:
1, motor is the water-cooled liquified petroleum gas engine, and heat load is little, and noise is low, can provide stable, cleaning thermal source to the liquefied petroleum gas (LPG) gasification.
2, when the gas storage steel cylinder fills liquid gas, need not dismantle and weigh, can directly fill onboard, metering, thereby can not produce the leakage that causes because of dismounting.Inflate easy safety again.
3, the vaporization pressure governor adopts control mechanism that vaporization pressure governor vacuum latching valve volume is reduced, even vaporization pressure governor volume reduces, and makes the vaporization pressure governor easily and Engine Matching, and Applicable scope broadens.
4, fuel gas mixer is the equal proportion structure, and air fuel ratio easily realizes full operation optimization; The gas metering assembly is located on the housing sidewall, does not have the fuel control piece in the air channel, and is favourable to improving the motor charging efficiency; The gas metering assembly is two amount sheet package assemblies, removable split processing, good manufacturability, the machining accuracy height of carrying out of the amount of making sheet; The mutual mounting point of two amount sheets is adjustable, the dimensional accuracy height of the amount seam that two amount sheets form, thereby air fuel ratio control accuracy height.
5, the liquefied petroleum air feed system adopts a series of safety measures, guarantees that fully motorcycle uses the Security of LP gas fuel.
6, the fuel supplying device in the utility model can be applied on existing any 4 stroke motorcycle motors, has practical characteristics.
The utility model is described in further detail below in conjunction with the accompanying drawing illustrated embodiment:
Fig. 1 LPG Motorcycle Engine structural representation;
Fig. 2 liquefied petroleum gas (LPG) motorcycle is with small-sized vaporization pressure governor general structure schematic representation;
Fig. 3 pressure governor outline drawing of vaporizing;
Fig. 4 pressure governor control mechanism schematic representation;
Fig. 5 normally open valve structural representation;
Fig. 6 liquefied petroleum gas (LPG) gas storage steel cylinder schematic representation;
Fig. 7 combination brake switch and proporting Facad structure schematic representation;
Fig. 8 liquid level meter, safety valve and mistake filling valve schematic representation;
Fig. 9 flow-limiting valve schematic representation;
Figure 10 combination brake switch and proporting topping up and fluid duct schematic representation;
Figure 11 mixer structure schematic representation;
Figure 12 two seam position views.
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Further specify particular content of the present utility model and working procedure below in conjunction with the accompanying drawing illustrated embodiment.
Consult Fig. 6-7: natural gas gas storage steel cylinder B is the gas storage steel cylinder (it is one of critical component that the natural gas motorcycle engine is supplied with) that is applicable to the petroleum gas motorcycle, and it is made up of steel cylinder body 43 and multi-functional combination brake switch and proporting 44.Steel cylinder body 43 is the deep draw moulding, and integral body only has a horizontal position welding crack structure; Adopt small-sized combination brake switch and proporting 44, he safety valve 49, float 45, suction pipe 46, implementation of port 48, liquid outlet 50, fluid one-way valve, limit that filling valve, bleed screw 56, fluid flow-limiting valve, two manual block valves 75,74 ducts 76 are common organic to be assembled in a combinaing valve body 51, compact structure, multiple functional guarantees that the steel cylinder Security is good.The combinaing valve body 51 of the combination brake switch and proporting 44 of liquid gas gas storage steel cylinder B is oblate cylindricality, rotating shaft place studs with the liquid level meter pointer 54 of magnetic pin 55 and the front that liquid level meter dial 53 is installed in combinaing valve body 51, on the external cylindrical surface of combinaing valve body 51, along cylindrical radial at interval 60 degree be drilled with 6 mutually disjoint and the cylindrical cavity of screw mouth arranged, top vestibule is equipped with safety valve 49, after this, each vestibule of arranged clockwise is followed successively by the vestibule of liquid outlet 50 dress manual block valves 74, the vestibule of gas-tight screw 56, the vestibule of dress manual block valve 75, the vestibule of dress implementation of port 48 and topping up non-return valve 77, the vestibule of topping up non-return valve 77 is communicated with by duct 76 with manual block valve opening chamber, the vestibule of liquid outlet 50 and manual block valve 74 is communicated with by duct 73, one of combinaing valve body 51 back side evagination are drilled with limit the prismatic boss that fills valve pocket, intrinsic float fork 63 of end face and float 45, the bottom iron chains have the limit of cylinder-shaped magnet 57 to cross to fill valve body 58 to be contained in to limit to fill in the valve pocket, magnet 57 does not contact mutually with magnetic pin 55 on the liquid level meter pointer 54 but attracts each other, and combinaing valve body 51 back sides have the cylinder boss of the cylinder bodily form vestibule that is drilled with dress suction pipe 46 and fluid current limliting ball valve 70 of an evagination in addition.The valve pocket of manual block valve 75 filled valve pocket through to limitting, and the valve pocket of manual block valve 74 is through to the valve pocket of fluid current limliting ball valve 70.
A) safety valve.Consult Fig. 8: spring 67 is bearing between the swivel nut 68 and Safety valve body 66 that is anchored on the combinaing valve body 51, and Safety valve body is pressed on its valve port.When the steel cylinder internal pressure surpassed certain value, this valve promptly was opened, and the part natural gas is laid down, and the steel cylinder internal pressure is descended, and can not break because of pressure of the inside of a bottle is too high with the protection steel cylinder;
B) the liquid level meter with limit filling valve.Consult Fig. 8 Figure 10: the liquid level meter is the two-part structure of relevant effect with limitting filling valve.The liquid level meter is made up of liquid level pointer 54, dial 53., float 45, the liquid level meter guard shield 52 of carrying magnetic pin 55, and float fork 63 is fixed on to limit and fills on the valve body 58.Limit to fill valve body 58 upper-end surfaces and fix one and limit and fill pin 59, limit to fill valve body 58 and be embedded with a little iron prop body of magnetic (magnet) 57 and attract mutually with magnetic pin 55 on the liquid level meter pointer 54.Limit to fill valve body 58 and limit and fill valve gap 64 and be enclosed in the cylinder pass valve pocket on the combinaing valve body 51, limitting to fill has one to limit and fill hole 61 and a plurality of liquid-through hole on the valve gap 64.When float 45 drives its float fork 63 swings, make synchronously to limit to fill valve body 58 and in its valve pocket, freely rotate.When liquid level reaches the highest spacing height, limit the limit that fills on the valve body 58 to cross to fill pin 59 promptly to insert to limit the limit that fills on the valve gap to cross and filled in the hole 61, spring 62 is compressed by the inlet hydraulic effect, limit and fill valve body 58 and in its valve pocket, axially move to the upper-end surface, compress sealing gasket 65, close and limit the liquid outlet opening that fills on the valve gap, promptly cut off topping up, reach to limit and fill purpose.
During level change, float 45 and float fork 63 are swung synchronously, drive to limit to fill valve body 58 rotations simultaneously, drive the magnet 57 that is inlaid in the bottom and rotate, because magnetic attraction is rotated liquid level meter pointer synchronously, promptly at liquid level position shown in the liquid level meter.
C) fluid flow-limiting valve: consult Fig. 9 and Figure 10, between fluid flow-limiting valve place and suction pipe 47 and the liquid outlet in the passage, with swivel nut 72 suction pipe 46 and constrictor 71 are pressed on the flow-limiting valve hole site on the combinaing valve body 51 together, current limliting ball valve 70 relies on spring 69 supporting, during super stream, ball valve is a normally open.
D) manual block valve, consult Figure 10, manual block valve 74 is installed between suction pipe 46 and the liquid outlet 50 in the passage, be in the downstream of fluid flow-limiting valve, close this valve, can cut off out stream, manual block valve 75 is in the downstream of topping up one-way valve, close this valve, can guarantee that liquefied petroleum gas (LPG) can not rushed down in the steel cylinder outside implementation of port.
E) consult Figure 10, topping up non-return valve 77 is a normally off under spring 78 effects, and each topping up finishes, and implementation of port is closed immediately by this ball valve, and preventing to fill into, the interior liquefied petroleum gas (LPG) of steel cylinder flows backwards.
F) consult Figure 10, duct 73 is the ducts that connect liquid outlet 50 and manual block valve 74 chambeies, and this valve pocket communicates with fluid current limliting valve pocket again.Duct 76 is to be communicated with implementation of port 48 and to limit to fill valve pocket D duct.
G) consult Fig. 8, bleed screw 56 is in combination brake switch and proporting below, can be when in steel cylinder, filling petroleum gas first, and the nitrogen of rushing in the bottle after steel cylinder made bleeds off, and could guarantee that petroleum gas fills into bottle, otherwise a nitrogen pressure hinders into natural gas in the bottle.
The structure of vaporization pressure governor D is consulted Fig. 2, Fig. 3: the one-level pressure regulator valve among the vaporization pressure governor D is positioned at the space that housing 28 and one-level valve gap assembly 22 surround, the secondary pressure regulator valve is positioned at the space that housing 28 and secondary valve gap 3 surround, the vacuum latching valve is positioned at the space of secondary pressure regulation valve pocket, slow running adjustment is assembled on the secondary valve gap 3, housing 28 is provided with fuel inlet connector 30, fuel outlet joint 31 and vacuum passage take over 32, link to each other by fuel gas inlet passage 18 between fuel inlet connector 30 and the one-level valve nozzle 17, secondary valve nozzle 27 is to connect one, the passage of secondary pressure regulator valve valve pocket, vacuum valve is inside and outside isolated, it takes over 32 by vacuum passage, and by the valve pocket of normally open valve door 33 vacuum valve inner chamber and engine air inlet tube is connected.
The one-level valve film assembly 24 of the one-level pressure regulator valve among the vaporization pressure governor D is assembled between housing 28 and the one-level valve gap assembly 22, one step valve big spring 23 is supported between the spring base hole and first diaphragm assembly of one-level valve gap assembly 22, one-level valve lever assembly 16 is supported on the housing 28 by an one-level valve lever hinge 15 and a step valve little spring 25, the spool place of one-level valve lever assembly 16 is fixed on the housing 28 and the one-level valve nozzle 17 that communicates with fuel gas inlet passage 18, and one-level valve lever hinge 15 is fixed on the housing 28 by pressure ring 21.
The secondary valve diaphragm unit 13 of the secondary pressure regulator valve among the vaporization pressure governor D is assembled between housing 28 and the secondary valve gap 3, the space that housing 28 and secondary pressure regulation valve gap 3 are surrounded is divided into two-part, right chamber is the air atmospheric pressure, chamber, a left side is the combustion gas working pressure, second lever assembly 4 is supported on the housing 28 by secondary valve lever hinge 5 and secondary valve spring 6, the secondary valve nozzle 27 that is closed or open by the spool of secondary valve lever assembly 4 one ends is fixed on the housing 28, and the elastic force of secondary valve diaphragm unit 13 left and right sides gas pressure difference and idle spring 11 all acts on the secondary valve lever assembly 4 by the point of application of force on the secondary valve diaphragm unit 13.
Among the vaporization pressure governor D, form the air film spring chamber of sealing by the rounding platform fitting seat on vacuum valve diaphragm unit 12 and the housing 28, this chamber is connected by pipe 32 and engine air inlet tube by vacuum passage, vacuum valve spring 14 places in the air film spring chamber, and its point of application of force is corresponding with the end of secondary valve lever assembly 4.
Idling in the vaporization pressure governor slow running adjustment is adjusted lever 9 and is supported on the secondary valve gap 3 by idling adjustment lever hinge 10, and the one end is supported by supported spring 8 and the idle adjusting screw 1 that locking spring 2 is housed.
The control mechanism of liquid gas motorcycle vaporization pressure governor, its structure is consulted Fig. 4 Fig. 5: this mechanism is by normally open valve door 33, vacuum latching valve in cam disk 34 and the pressure governor constitutes, the valve body 39 of normally open valve door 33 is provided with vent 37,38, vent 37,38 are communicated with vacuum self-locking valve pocket in engine air inlet tube and the pressure governor respectively, valve body 39 inner chambers are equipped with spool 40, seal ring 36 is loaded in the seal groove of spool 40, return spring 35 is equipped with in spool 40 lower ends, pin 41 is equipped with in the upper end, pin 41 is supporting roller 42, and roller 42 contacts with the cam disk 34 that is contained in the mixer throttle plate pin.
Mixer E structure is consulted Figure 11 and Figure 12: it is by housing, air throttle component, the plunger diaphragm unit is formed, air throttle component 80 is installed in the air flow channel of mixer case 79, plunger diaphragm unit 81 is installed in the top of air throttle component 80, and it is vertical with air flow channel, the inner chamber of plunger diaphragm unit 81 constitutes vacuum chamber with the vacuum room cover 82 that is installed in mixer case 79, the balance spring 83 that is loaded on the inner chamber of plunger mould chip module 81 is bearing on the spring seat of vacuum room cover 82, on the periphery of plunger diaphragm unit 81 and the housing sidewall between the fuel gas inlet 85 gas metering assembly 84 is housed.
Because the utility model adopts multi-functional combination brake switch and proporting structure, collection preheating, one-level pressure regulation, secondary pressure regulation, idling adjustment and vacuum are from locking in one, thereby compact structure, can adapt to the little present situation requirement of float amount motorcycle installing space, the vaporization pressure governor pressure regulation stability that the utility model adopts is good, particularly secondary surge-chamber pressure stability is good, and this is highly beneficial to cooperating mixer to optimize engine air-fuel ratio.Idle is highly sensitive, helps reducing the engine idle exhaust index.The control mechanism of pressure governor is made up of the vacuum latching valve in normally open valve, cam disk and the pressure governor, realizes pressure governor is quit work or enters the control of work, guarantees the Security and the reliability of voltage regulator operation.
Liquid liquefied petroleum gas enters the one-level pressure regulator valve from fuel inlet connector 30, when a step valve internal pressure reaches specified value, atmospheric pressure makes a concerted effort to overcome the spring force rising of a step valve big spring 23 on the one-level valve film assembly 24, and one-level valve lever assembly 16 is closed one-level valve nozzle 17 under the effect of a step valve little spring 25.When a step valve internal pressure was lower than specified value, the step valve big spring 23 that one-level valve lever assembly 16 is extended was pushed open again, has liquefied petroleum gas (LPG) to enter in the one-level valve pocket by fuel inlet passageway 18 and one-level valve nozzle 17 from fuel inlet union 30 again.In the engine operation, repeat above-mentioned action a step valve internal pressure-regulating mechanism high frequency, make a step valve internal pressure be stabilized in specified value.
Under certain operating mode in the engine operation, the secondary valve internal pressure reaches certain value, the elastic force of gas pressure difference on the secondary valve diaphragm unit 13 and idle spring 11, point of application of force by secondary valve diaphragm 13 centers acts on the secondary valve lever assembly 4, the elastic force of secondary valve spring 6 directly acts on the secondary valve lever assembly 4, secondary valve nozzle 27 places act on secondary valve lever assembly spool end from the gaseous-pressure of a step valve, the resultant moment of force that above-mentioned power produces secondary valve lever assembly hinge 5 makes secondary valve lever assembly 4 reach certain aperture state and balance, can keep certain pressure in the secondary valve, gaseous state petroleum gas flows to mixer with regime flow by gas outlet joint 31, and motor is worked under steady working condition.Working conditions change, the secondary valve chamber pressure slightly changes, and the aperture of secondary valve nozzle 27 is changed, to satisfy the required traffic requirement of new operating mode.
The effect of vacuum latching valve is when motor is not worked, vacuum valve pocket external and internal pressure equates, vacuum valve diaphragm unit 12 is stood upright under the effect of self elastic force and vacuum valve spring 14 elastic forces, help the spool of secondary valve lever assembly to close secondary valve nozzle 27, prevent that combustion gas from flowing into the secondary valve pocket through secondary valve nozzle 27 in the one-level valve pocket, keeping the secondary valve cavity pressure is atmospheric conditions, can stop gas flow toward mixer, promptly show the effect of vacuum lock, during engine operation, the degree of vacuum of suction tude is taken over 32 by vacuum passage in the vacuum chamber and is reached the vacuum valve inner chamber, the gas differential pressure effect makes in 12 distortion of vacuum valve diaphragm unit and moves, and vacuum lock disappears to the self-locking action of secondary valve lever assembly 4.
Slow running adjustment changes the angle of inclination that idling is adjusted lever 9 by changing the length of idle adjusting screw 1 precession, with the active force of 11 pairs of secondary valve lever assemblies 4 of change idle spring, and reaches the purpose of regulating secondary valve nozzle 27 apertures.During idling, control secondary valve port opening, idle spring power plays a major role, and control idle spring 11 pretightening forces can realize the control of idling gas flow, thereby reach the purpose of control idling air fuel ratio.
Preheating unit is the device that the required heat of vaporization is provided to liquefied petroleum gas, mainly constitute by the fluid passage that is located on the housing 28, the fluid of hot state, generally be engine cycles water, a flow channel from two water pipe adapters 19, flow out from another water pipe adapter by preheating water pipe 26, the fluid heat passes to petroleum gas by housing.
Vacuum latching valve vacuum passage is taken over 32 gas circuits that are communicated with engine air inlet tube and is provided with a normally open valve door 33 by cam disk 34 controls.When engine start and idling, the lift of cam disk 34 top rollers 42 is little, and normally open valve is an opening state, and the vacuum action of engine air inlet tube makes in the distortion of vacuum latching valve and transfers from one place to another under escort the self-locking that removes secondary valve nozzle 27, and the vaporization pressure governor enters proper functioning; Changed load condition over to motor, the mixer closure rotates cam disk 34 is closed normally open valve door 33, and vacuum valve pocket Dazhen reciprocal of duty cycle state is kept, and guarantees vaporization pressure governor proper functioning.When engine shutdown, cam disk 34 loses the closing function to normally open valve door 33, connects vacuum valve and recovers to be communicated with the gas circuit of engine air inlet tube, and the vacuum valve pocket recovers atmospheric conditions, and second depressurized valve valve port is closed again, is in self-locking state.
With normally open valve door 33, cam disk 34 and pressure governor Applicable scope is increased with control mechanism that the vacuum latching valve is formed, mate easily with motor, as long as discharge capacity is in Applicable scope, any have under the load condition, no matter how little intake depression is, control mechanism all can guarantee the pressure governor proper functioning.This can make vacuum self-locking valve pocket volume reduce, even the pressure governor volume reduces.This feature of this mechanism is different from the control mechanism of any other form.
During engine operation, air throttle component 80 in the impeller, change the position of relative mixer case 81 inner chambers of sheet closure, to change engine load.When working conditions change, aditus laryngis place degree of vacuum changes, cause that plunger diaphragm unit 81 moves, when changing air flow channel, the ventilation length of gas metering seam on the periphery effect of the blocking change in proportion mixer case 79 sidewalls of dependence plunger diaphragm unit 81.During the elastic force balance of pressure on the plunger diaphragm unit 81 and balance spring 83, plunger just makes motor stable operation under new operating mode in suitable location with suitable air fuel ratio.The effect of the vacuum chamber that forms between vacuum room cover 82 and the mixer case 79 is to make the residing space of diaphragm form a low pressure area, by the hole of plunger end face aditus laryngis degree of vacuum is reached wherein.
Claims (10)
1. LPG Motorcycle Engine mainly is by connecting rod, distribution device and fuel supply system, igniting system, cooling system, lubricating system, starting system waits part to form, it is characterized in that its employing is vertical, water-cooled, the four-stroke structure, with the liquefied petroleum gas (LPG) is the supplier of fuel, by liquid gas gas storage steel cylinder (B), solenoid valve (C), the vaporization pressure governor (D) and the control mechanism thereof of liquid gas, mixer (E) is formed, gas storage steel cylinder (B), solenoid valve (C), vaporization pressure governor (D), mixer (E) is connected by the petroleum gas delivery line successively with the suction tude of motor (A), the steel cylinder body (43) of liquid gas gas storage steel cylinder (B) is a weld seam, multi-functional combination brake switch and proporting (44) is installed on the steel cylinder body (43), vaporization pressure governor (D) collection liquefied petroleum gas hot water jacket, the one-level pressure regulator valve, the secondary pressure regulator valve, slow running adjustment, the vacuum latching valve is in one, the liquefied petroleum gas for preheating device adopts ring-shaped water jacket (26) structure that is arranged on the housing (28), and two water pipe adapters of this ring-shaped water jacket (19) link to each other with water pump (H) water intake with radiator (G) water outlet of water cooling system respectively by water pipe.
2. by the described LPG Motorcycle Engine of claim 1, the combinaing valve body (51) that it is characterized in that the combination brake switch and proporting (44) of the liquid gas gas storage steel cylinder (B) in the said supplier is oblate cylindricality, rotating shaft place studs with the liquid level meter pointer (54) of magnetic pin (55) and the front that liquid level meter dial (53) is contained in combinaing valve body (51), on the external cylindrical surface of combinaing valve body (51), along cylindrical radial at interval 60 degree be drilled with 6 mutually disjoint and the cylindrical cavity of screw mouth arranged, top vestibule is equipped with safety valve (49), after this, each vestibule of arranged clockwise is followed successively by the vestibule of liquid outlet (50) dress manual block valve (74), the vestibule of gas-tight screw (56), the vestibule of dress manual block valve (75), the vestibule of dress implementation of port (48) and topping up non-return valve (77), the vestibule of topping up non-return valve (77) is communicated with by duct (76) with manual block valve opening chamber, the vestibule of liquid outlet (50) and manual block valve (74) is communicated with by duct (73), one of combinaing valve body (51) back side evagination is drilled with limit the prismatic boss that fills valve pocket, intrinsic float fork of end face (63) and float (45), the bottom iron chains have the limit of cylinder-shaped magnet (57) to cross to fill valve body (58) to be contained in to limit to fill in the valve pocket, magnet (57) does not contact mutually with magnetic pin (55) on the liquid level meter pointer (54) but attracts each other, combinaing valve body (51) back side has the cylinder boss of the cylinder bodily form vestibule that is drilled with dress suction pipe (46) and fluid current limliting ball valve (70) of an evagination in addition, the valve pocket of manual block valve (75) filled valve pocket through to limitting, and the valve pocket of manual block valve (74) is through to the valve pocket of fluid current limliting ball valve (70).
3. by the described LPG Motorcycle Engine of claim 1, it is characterized in that one-level pressure regulator valve in the said vaporization pressure governor (D) is positioned at the space that housing (28) and one-level valve gap assembly (22) surround, the secondary pressure regulator valve is positioned at the space that housing (28) and secondary valve gap (3) surround, the vacuum latching valve is positioned at the space of secondary pressure regulation valve pocket, slow running adjustment is assembled on the secondary valve gap (3), housing (28) is provided with fuel inlet connector (30), fuel outlet joint (31) and vacuum passage are taken over (32), link to each other by fuel gas inlet passage (18) between fuel inlet connector (30) and the one-level valve nozzle (17), secondary valve nozzle (27) is to connect one, the passage of secondary pressure regulator valve valve pocket, vacuum valve is inside and outside isolated, it takes over (32) by vacuum passage, and by the valve pocket of normally open valve door (33) the vacuum valve inner chamber is communicated with engine air inlet tube.
4. by claim 1 or 3 described liquid gas motorcycle engines, the one-level valve film assembly (24) that it is characterized in that the one-level pressure regulator valve in the said vaporization pressure governor (D) is assembled between housing (28) and the one-level valve gap assembly (22), one step valve big spring (23) is supported between the spring base hole and first diaphragm assembly of one-level valve gap assembly (22), one-level valve lever assembly (16) is supported on the housing (28) by an one-level valve lever hinge (15) and a step valve little spring (25), the spool place of one-level valve lever assembly (16) is for to be fixed on the housing (28) and the one-level valve nozzle (17) that communicates with fuel gas inlet passage (18), and one-level valve lever hinge (15) is fixed on the housing (28) by pressure ring (21).
5. by claim 1 or 3 described liquid gas motorcycle engines, the secondary pressure regulator valve diaphragm unit (13) that it is characterized in that the secondary pressure regulator valve in the said vaporization pressure governor (D) is assembled between housing (28) and the secondary valve gap (3), the space that housing (28) and secondary pressure regulation valve gap (3) are surrounded is divided into two-part, right chamber is the air atmospheric pressure, chamber, a left side is the combustion gas working pressure, second lever assembly (4) is supported on the housing (28) by secondary valve lever hinge (5) and secondary valve spring (6), the secondary valve nozzle (27) that is closed or open by the spool of secondary valve lever assembly (4) one ends is fixed on the housing (28), and the elastic force of secondary valve diaphragm unit (13) left and right sides gas pressure difference and idle spring (11) all acts on the secondary valve lever assembly (4) by the point of application of force on the secondary valve diaphragm unit (13).
6. by the described liquid gas motorcycle engine of claim 1, it is characterized in that in the said vaporization pressure governor (D), form the air film spring chamber of sealing by the rounding platform fitting seat on vacuum valve diaphragm unit (12) and the housing (28), this chamber is taken over (32) by vacuum passage and is communicated with engine air inlet tube, vacuum valve spring (14) places in the air film spring chamber, and its point of application of force is corresponding with the end of secondary valve lever assembly (4).
7. by claim 1 or 3 described liquid gas motorcycle engines, the idling in the pressure governor slow running adjustment of it is characterized in that vaporizing is adjusted lever (9) and is adjusted lever hinge (10) by idling and be supported on the secondary valve gap (3), and the one end is by supported spring (8) and idle adjusting screw (1) support of locking spring (2) is housed.
8. by the described LPG Motorcycle Engine of claim 1, the control mechanism that it is characterized in that said liquid gas motorcycle vaporization pressure governor, it is characterized in that by normally open valve door (33), vacuum latching valve in cam disk (34) and the pressure governor constitutes, the valve body (39) of normally open valve door (33) is provided with vent (37), (38), vent (37) (38) is communicated with vacuum self-locking valve pocket in engine air inlet tube and the pressure governor respectively, valve body (39) inner chamber is equipped with spool (40), seal ring (36) is loaded in the seal groove of spool (40), return spring (35) is equipped with in spool (40) lower end, pin (41) is equipped with in the upper end, pin (41) is supporting roller (42), and roller (42) contacts with the cam disk that is contained in the mixer throttle plate pin (34).
9. by the described liquefied petroleum gas motorcycle engine of claim 1, it is characterized in that mixer (E) is by housing, air throttle component, the plunger diaphragm unit is formed, air throttle component is installed in the air flow channel of housing, plunger diaphragm unit (81) is installed in the top of air throttle component (80), and it is vertical with air flow channel, the inner chamber of plunger diaphragm unit (81) constitutes vacuum chamber with the vacuum room cover (82) that is installed in mixer case (79), the balance spring (83) that is loaded on the inner chamber of plunger mould chip module (81) is bearing on the spring seat of vacuum room cover (82), on the periphery of plunger mould chip module (81) and the housing sidewall between the fuel gas inlet (85) gas metering assembly (84) is housed.
10. by the described liquefied petroleum gas motorcycle engine of claim 9, it is characterized in that said gas metering assembly (84) is made up of two amount sheets of split processing, leave the metering gas crack between two amount sheets, the crack width can be wide or broaden that the mutual mounting point of amount sheet is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266328 CN2532251Y (en) | 2000-12-28 | 2000-12-28 | LPG motorcycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266328 CN2532251Y (en) | 2000-12-28 | 2000-12-28 | LPG motorcycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2532251Y true CN2532251Y (en) | 2003-01-22 |
Family
ID=33620443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00266328 Expired - Fee Related CN2532251Y (en) | 2000-12-28 | 2000-12-28 | LPG motorcycle engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2532251Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534916A (en) * | 2014-12-06 | 2015-04-22 | 苏州市诚品精密机械有限公司 | Discharge valve seat for all aluminum radiator |
| CN105443234A (en) * | 2015-12-15 | 2016-03-30 | 湖北铂航动力科技有限公司 | Gas engine with multiple cooling modes |
-
2000
- 2000-12-28 CN CN 00266328 patent/CN2532251Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534916A (en) * | 2014-12-06 | 2015-04-22 | 苏州市诚品精密机械有限公司 | Discharge valve seat for all aluminum radiator |
| CN104534916B (en) * | 2014-12-06 | 2017-02-22 | 东莞市天合机电开发有限公司 | Discharge valve seat for all aluminum radiator |
| CN105443234A (en) * | 2015-12-15 | 2016-03-30 | 湖北铂航动力科技有限公司 | Gas engine with multiple cooling modes |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |