CN2319591Y - Improved fuel saving purifier utilizing inlet resonance and idle supplement of air - Google Patents

Abstract

The utility model relates to an improved fuel saving purifier utilizing an inlet resonance and an idle supplement of air, comprising a resonant container, a valve, communicating pipes and straight air channels. An oil drain plug is arranged at the lowest place of the resonant container. The valve is fixed on a heat insulation pad of the outlet of a carburetor blending container or an inner air inlet; the communicating pipes are connected with the resonant container and the valve respectively; in addition, more than two straight air channels which are communicated with the bottom of a blending container for supplementing air are arranged on a plunger of the carburetor. The centers of the holes of the outer ends of the straight air channels on the outer surface of the plunger are positioned at the bottom of an intersecting line on the upper part of the blending container and the outer wall of the plunger; namely, the holes are positioned at the range of the plunger lifted and the holes shielded from the start of idling condition to the end of transient condition. The improved fuel saving purifier utilizing an inlet resonance and an idle supplement of air can adjust air-fuel ratio reasonably and reduce feculence concentration.

Description

Utilize the improved oil-saving clarifier of air inlet resonance and idling tonifying Qi

The utility model relates to a kind of oil-saving clarifier that is used for the vehicle gasoline engine gas handling system, replenishes the oil-saving clarifier of secondary air when relating to a kind of employing air inlet resonance of the two-stroke gasoline engine that is used for motorcycle and rib power car and idling specifically.

At present, the fuel-economizing of multiple automobile-used two-stroke gasoline engine and fuel economizer and the purifier that idling purifies direction have been developed.The design of these devices is relatively more reasonable mostly, but also has certain deficiency separately.

Example one is the model utility " motorcycle oil-saving purifier " of CN85203995U for application number, it is the resonance container of a band branched pipe, this branched pipe is connected with interior intake duct, this resonance container has an additional air and enters the hole, replenish air quantity by the unidirectional control of leaf valve that is loaded on the resonance room, the folding of the reed of this leaf valve with the variation of interior intake duct intake vacuum.Because the resonance vessel volume of this device is bigger, additional air is difficult in time proofread and correct Air Fuel Ratio of Gasoline Engines, the effluent concentration of CO and HC when therefore being difficult to control idling.Simultaneously, the remaining miscella that accumulates in resonance room inside in the petrol engine running is easy-clear not, and repeatedly receive the resonance room and pull up from branched pipe and receive the reliability that influence connects for removing Residual oil, and also cumbersome.In addition, the secondary supplement air quantity can not be regulated.The also have application number similar with this device is model utilitys such as 89209167.3,90215713.2,91106842.2.These devices all are provided with the resonance container (room of this class pattern is called open type resonance room) that a double people of leading of energy replenishes air, its common deficiency is the effluent concentration of CO and HC in the time of all can not effectively controlling idling, and they not easy-clear use the remaining miscella that is deposited in after a stage in the resonance room.

Above example is that major function is the existing oil-saving clarifier patent of fuel-economizing.In existing device, also there are some functions to be aseptic idling purifier when the idling only.As the patent No. is the model utility " motorcycle gasoline engine is with hanging down idling disposal of pollutants plunger type carburetor " of ZL94231201.5.Being improved to of plunger type closure (hereinafter to be referred as plunger) wherein is being provided with an additional air inlet through hole that work during only in the petrol engine idling, that connect with atmosphere on the plunger wall.During the petrol engine idle running, this improvement structure helps improving air fuel ratio, thereby help improving the effluent concentration of CO, HC, its deficiency is, in running, do not produce other effects such as fuel-economizing, and only establish single additional air inlet through hole on the plunger, the effect that promotes oil gas to mix is still obvious inadequately.

The purpose of this utility model is, a kind of oil-saving clarifier that is used for the two-stroke gasoline engine of vehicle gasoline engine, especially motorcycle and booster car is provided, and it can clean the resonance container easily, and the secondary supplement air inlet performance can change with idling the time.

For achieving the above object, the utility model provides a kind of improved oil-saving clarifier that utilizes air inlet resonance and idling tonifying Qi, it comprises a resonance container, its characteristics are, it also comprises: one is installed on a heat insulating mattress that is connected with Carburetor mixing chamber outlet end end or the interior intake duct tube wall with one of its passage end, its stopcock switch by being connected with interior intake duct is opened with one end and this stopcock and branched pipe that the other end of passage is connected and communicates for one; The one resonance room that links to each other with the other end of branched pipe, the extreme lower position after the installation of this resonance room is provided with a jettison gear; Also comprise: on outer wall on the Carburetor plunger cylinder body, relative with mixing chamber, have the little straight air flue that at least two adding containers are used, the oblique mixing chamber of the center line of these air flues bottom, the lower area of the upside intersecting line that Carburetor mixing chamber inwall and plunger outer wall passed through mutually when all holes of these air flue outer ends on the plunger outer wall were positioned at idling operation, promptly, these holes are located at from idling operation and begin to transient working condition between tailend, plunger by on carry and in the scope that all holes are hidden from view.

Adopt above-mentioned layout of the present utility model and structure, can make Carburetor when designing, be fuel supply rate curve and in use adopt best adjustment method to adjust on the oily basis that is of low speed on the one hand from structure adjustment low speed oil system and main fuel feeding, at the road operating conditions, especially in, play the fuel-economizing effect under the low speed of a motor vehicle operating mode, and make device possess ease of use and serviceability.Race of engine operating mode (comprising engine idle idle running operating mode and transient working condition initial state) plays and improves air inlet mixed gas quality, more reasonable adjustment air fuel ratio when low speed on the other hand, with the effect of further reduction exhaust contaminant CO and HC effluent concentration.

Now the purpose of this utility model, structural feature and advantage are more specifically understood in the detailed description in conjunction with the embodiment of its accompanying drawing by following.

Fig. 1 is total figure of an embodiment of the improved oil-saving clarifier of the utility model.

Fig. 2 (a), 2 (b) and 2 (c) are illustrated respectively in the front elevational schematic of the position of the outer stomidium of two, three and four straight air flues of tonifying Qi in embodiment illustrated in fig. 1, on the Carburetor plunger outer wall; Bright from the principle the position that is provided with of Fig. 2 (d) and 2 (e) as the outer stomidiums of five straight air flues of all tonifying Qi;

Fig. 3 is the resonance room and the mounting point schematic representation thereof of another mode of structure of oil-saving clarifier of the present utility model.

Fig. 4 is A from Fig. 3, to the front elevational schematic of the resonance room of another mode of structure of looking.

Figure 1 shows that one is the oil-saving clarifier that is provided with the resonance room and is provided with the straight air flue of tonifying Qi on the Carburetor plunger at engine charge.It comprises: one one end is plugged in rigidly with Carburetor mixing chamber outlet end end is close to stopcock 1 on the heat insulating mattress that is connected; A connecting tube 2 that is connected in stopcock 1 the other end, being coated on has a metal sleeve 4 outside this connecting tube 2; One clamps connecting tube 2 clamp 3 that is installed on the stopcock 1; One is connected with connecting tube 2, is anchored on the vehicle frame or is placed in resonance container 6 (not indicating vehicle frame and toolbox on the figure) in the toolbox by clamp 5, and one clamps the folder circle 7 that is installed on the resonance container 6 with connecting tube 2; And, a purge cock 8 of being located at the lowest part after resonator is installed.

Described resonance container is made by materials such as translucent plastic, so that when maintenance in time found the situation of hoarding Residual oil.The plug screw mounting plate 9 that matches with purge cock 8 on the resonance container 6 or for and resonance container 6 is whole makes, or be and resonance container 6 bonds.

Fig. 2 (a) and (b), (c) be respectively on the outer wall of the plunger that has two, three and four straight air flues on it, along the front view of the outer stomidium of all straight air flue that distributes like circular arc line.When idling operation and transient working condition (high idle speed operating mode) when beginning, air enters mixing chamber by plunger 14 bottoms, and this moment, the idling oil outlet began fuel feeding.Meanwhile, another part air enters plunger 14 internal upper part spaces via the aperture 11 in the middle of the horizontal dividing plate of plunger 14 inside, and the straight air flue of using by the tonifying Qi that is positioned on plunger 14 sidewalls 10 enters mixing chamber again.Straight air flue 10 is at least 2, and oblique plunger 14 lower walls and be communicated in the mixing chamber bottom.The lower area of the upside intersecting line that Carburetor mixing chamber inwall and plunger 14 outer walls passed through mutually when all holes 15 of these air flue outer ends on plunger 14 outer wall were positioned at idling operation, promptly, these holes 15, as five holes 15 that also can distribute arbitrarily, be located at from the idling operation shown in Fig. 2 (d) begin to the transient working condition shown in Fig. 2 (e) between tailend plunger 14 when being mentioned as position " O " as position " O " all holes 15 by in the scopes of hiding from view, promptly in the zone of representing with hacures of its axial width as shown in the figure for " S ".

Fig. 3 illustrates the another kind of structure of the resonance room of the improved oil-saving clarifier of the utility model.This resonance container 6 ' is integrated with air filter housing 16, is the part of air filter housing 16.As being the left part of housing 16, structure ringwise in this embodiment.Like this, can make full use of limited installing space.Consider that from this requirement the below (diagram) in addition that resonance container 6 can also be arranged on fuel tank certainly can also be according to the resonance container 6 of the different position design different structure profiles that are fit to of each vehicle.

Concrete effect of the present utility model, mechanism are described below:

First, the automobile-used two-stroke gasoline engine of motorcycle and rib power adopts crankcase loop scavenging pattern, when low speed and middling speed operating mode, exist tangible air inlet to regurgitate phenomenon, regurgitate to some high speed flow of mixed gas of Carburetor mixing chamber from interior intake duct and to cross the idling oil outlet, cause idling oil outlet and even main injection jet fuel feeding once more.The utility model then makes the petrol engine intake process later stage, regurgitate partially mixed gas by crankcase to the Carburetor mixing chamber, by charge into heat insulating washer 12, stopcock 1, connecting tube 2 resonance container 6 or 6 ', thereby reduce the fuel feeding once more of idling oil outlet and main injection jet, part is eliminated air cleaner cartridge lower half portion and is regurgitated the oil dripping phenomenon that oil gas produces because of gathering.When the petrol engine intake process began, negative pressure appearred in interior intake duct, and the mixed gas in the resonance container 6 or 6 ' passes through interior inlet duct flow to crankcase as the part of carbureted charge, plays fuel-efficient effect.In this working procedure, ' the gas mixed gas that repeatedly fills, drains the oil will cause resonance container 6 or 6 ' long-pending oil, and the oil of long-pending oil is poor for resonance container 6 or 6.At this moment, the resonance container 6 or 6 that unloads in the utility model ' is gone up set purge cock 8, can be removed Residual oil easily; Simultaneously, branched pipe of the present utility model and the interior intake duct part that is connected is provided with a stopcock switch 1, in trimming, change the resonance container or can close under other necessary occasions.Like this, adopt the utility model, prolonged the useful life longevity of this device, improved serviceability reaching the fuel-economizing purpose simultaneously.

The second, the tonifying Qi that the utility model is provided with on Carburetor plunger 14 is at least two with straight air flue 10, helps replenishing more refinement of air draught, more disperses, and oil gas is better mixed.Simultaneously, all straight air flue 10 oblique mixing chamber lower walls also are communicated with mixing chamber, like this, help improving the attached wall phenomenon of fuel oil of mixing chamber lower wall, the fuel oil of idling oil outlet ejection is carefully dripped and be attached to the easier atomizing of oil reservoir of mixing chamber wall and more even with air mixing.In addition, the special position setting in all hole 15 of all straight air flues 10 on plunger 14 outer walls had both made the measure that replenishes air give full play to and had improved petrol engine low speed air fuel ratio characteristic, can improve the oil gas mixing quality again, improve burning, thereby further improve idle exhaust emission, make it stably reaching standard.

The positive effect of the improved oil-saving clarifier of the utility model now is described with following test data.As: table 1 illustrates the correlation data that certain 250 model motorcycle 1E65FM petrol engine adopts the utility model front and back double idle discharge measuring value.Table 1 shows, adopt after the utility model, the CO of general idling operation and high idle speed operating mode and HC effluent concentration all have reduction in various degree, can stably up to standardly (press the GB14621-93 regulation, the two stroke engine motor exhaust pollutant CO concentration limit that played production in 1996 is 4.5%, and the HC concentration limit is 8000ppm).

Certain 250 model motorcycle 1E65FM petrol engine of table 1 adopts the double idle discharging contrast before and after the utility model

Whether adopt the utility model	The Carburetor numbering	The discharge measuring value of general idling		High idle speed discharge measuring value
						CO	HC	CO	HC
		％	ppm	％	ppm
						Do not adopt	1	5.6	10500	5.2	9700
Adopt	3.3	6200	3.6	7000
					Do not adopt	2		4.4	8400	3.5	6800
Adopt	0.8	6000	0.4	5800
					Do not adopt		3	4.8	8400	4.4	7800
Adopt	1.9	5500	3.0	6800
					Do not adopt	4		4.6	8000	4.6	8500
Adopt	2.4	6500	3.8	7800
					Do not adopt		5	4.8	11500	4.8	9600
Adopt	3.5	6400	3.5	6000

And for example, using the bulge test of certain 250 model motorcycle gasoline engine of PZ26 type (before improving) Carburetor to show, is 25% o'clock at throttle opening, and the average fuel consumption rate of descent is greater than 8%; Make road test after the entrucking, when car load speed of a motor vehicle 40-70km/h, fuel consumption per hundred kilometers descends greater than 8%.

Claims (5)

1. improved oil-saving clarifier that utilizes air inlet resonance and idling tonifying Qi, it comprises a resonance container (6 or 6 '), it is characterized in that,

It also comprises: one is installed in stopcock switch (1) on a heat insulating mattress (12) that is connected with Carburetor mixing chamber outlet end end or the interior intake duct tube wall, that its passage is connected with interior intake duct with one of its passage end; One connecting tube (2) that is connected and communicates with the one end and the other end of the passage of described stopcock switch (1); The one resonance container (6 or 6 ') that is connected and communicates with the other end of described connecting tube (2) is provided with a jettison gear (8) on the wall of the extreme lower position after the installation of described resonance container (6 or 6 ');

It also comprises: on Carburetor plunger (14) cylindrical body, have the straight air flue (10) that at least two additional air are used on the outer wall relative with mixing chamber, the oblique plunger of center line (14) lower wall of described all straight air flues (10) also is communicated with mixing chamber, the all hole (15) of the outer end of all described straight air flues (10) on plunger (14) outer wall be centered close to idling operation the time Carburetor mixing chamber inwall and plunger (14) the outer wall upside intersecting line that passes through mutually lower area, promptly, these holes are located at from idling operation and begin to transient working condition between tailend, plunger (14) by on carry and in the scope that all holes are hidden from view.

2. improved oil-saving clarifier as claimed in claim 1, it is characterized in that described jettison gear (8) is one to be bolted in one and to be positioned at the plug screw (8) that the screw (9) and of described resonance container (6 or 6 ') on the lowest part wall after the installation is bolted in described screw (9).

3. improved oil-saving clarifier as claimed in claim 1 is characterized in that, described resonance container (6) can be anchored on the vehicle frame of motorcycle or booster car or in the toolbox.

4. improved oil-saving clarifier as claimed in claim 1 is characterized in that, described resonance container (6 ') can be used as the part of air filter housing (16) and makes.

5. improved oil-saving clarifier as claimed in claim 1 is characterized in that, all holes (15) on plunger (14) outer wall of the outer end of all described straight air flues (10) can become self bilateral symmetry distribution.

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