CN2119507U

CN2119507U - Air-fuel ratio regulator

Info

Publication number: CN2119507U
Application number: CN 91217558
Authority: CN
Inventors: 颜廷好
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-07-09
Filing date: 1991-07-09
Publication date: 1992-10-21

Abstract

The utility model is improved to be designed by taking the idle speed air-conditioning mechanism of the original vehicle as the base. The function of enriching or diluting the mixing ratio of the combustion gas from time to time is enlarged according to different operating conditions; the utility model is composed of a regulating guide sleeve, a head valve, a return spring, a drawing wire, a support bracket, a hand reel, etc. While in the installation and use, the original idle speed air bolt is screwed off, and the air-fuel ratio regulator composed of the regulating guide sleeve, the hands reel, etc. is extremely installed so that the fuel oil saving can be realized, and the acceleration and the maximum power output of the engine can be satisfied. The utility model brings the convenience for the starting of the vehicle in winter.

Description

Air-fuel ratio regulator

The utility model is applied to the air fuel ratio of gasoline engine carburetor and regulates, and can save the instantaneous peak output output that fuel oil can guarantee motor again under steam to reach Motor Vehicle.Chemical reaction theory during according to gasoline perfect combustion is learnt: need when 1 kilogram of gasoline all burns 15 kg of air per kg of water evaporated by weight the inflammable mixture of 15:1 be called the standard inflammable mixture, this moment, excess air coefficient a was 1.If 1 kilogram of gasoline mixes with less than 15 kg of air per kg of water evaporated, then a＜1 is called dense inflammable mixture.Otherwise when a＞1, be called rare inflammable mixture.The concentration of mixed gas sees the following form to the influence of engine performance:

Inflammable mixture air excess motor oil consumption rate engine operation situation

Coefficient a power

Dense inflammable mixture 0.47-0.48 significantly reduces to enlarge markedly the unstable over-emitting black exhaust of work

The denseer inflammable mixture 0.88 minimum 20% acceleration performance maximum that increases

It is better that standard inflammable mixture 1 slightly reduces slightly to increase acceleration performance

It is relatively poor that rarer inflammable mixture 1.11 reduces 80% minimum acceleration performance

Weakest mixture 1.13-1.33 significantly reduces to enlarge markedly the work shakiness

Purpose of design of the present utility model, it is exactly combustion theory according to gasoline, by improvement utilization to original slow running adjustment, impel burning mixture according to different operating mode needs, make things convenient for and adjust more exactly the air fuel ratio regulator of the novel practical of excess air coefficient a.

The utility model is achieved in that installs the air fuel ratio regulator, and the handle reel is installed in as pulling turn light position easily.Can select the position (a＜1, a=1, a＞1) of the good excessive air coefficient a of preset easily by the hand reel according to actual conditions in motion.To reach the power output of both satisfying motor, save the purpose of great amount of fuel oil again.

Elaborate below in conjunction with accompanying drawing:

Fig. 1 is the principle schematic of former engine idle air screw in the accompanying drawing.

Fig. 2 is the working principle schematic representation of the air fuel ratio regulator after improving.

(1) carburetor body, (2) mixed gas, (3) idling air screw, (4) air, (5) fuel oil among Fig. 1.

Guide pin bushing, (10) retaining spring, (11) overhead-valve, (12) mixed gas, (13) body, (14) fuel oil, (15) air, (16) wire drawing, (17) hand reel are adjusted in (6) support, (7) baffle plate, (8) return spring, (9) among Fig. 2.

Shown in Figure 1: as on carburetor body (1), to be provided with three passages, two passages in lower end respectively with fuel oil and air communication, the mixed gas passage outlet of upper end communicates with the passage (not marking among the figure) that main amount mixed gas enters cylinder block, motor is negative pressure state in the passage in the running, and mixed gas (2) and main amount mixed gas enter the engine cylinder cylinder body together.When idling air screw (3) precession inwards, air (4) is obstructed, and flow reduces, and fuel oil (5) increases, and mixed gas (2) thickens, and this helps the startup and the acceleration of motor.Otherwise idling air screw (3) is to outward turning, and air (4) flow increases, and fuel oil (5) reduces, and this helps economical consumption of fuel and reduces blowdown.Yet the deficiency of this structure is a Motor Vehicle to be in operation, can only be quantitatively in a position.

Fig. 2, air fuel ratio regulator have kept the working principle of former idling air screw substantially, and have increased border operating mode factually, can change the function of air fuel ratio at any time within the specific limits.As shown in the figure: the outer-diameter threads of adjusting guide pin bushing (9) is the same with the screw thread specification of former idling air screw (3), and this is convenient to replace.In adjusting guide pin bushing (9), steel overhead-valve (11) is housed.Baffle plate (7) snaps in the groove of overhead-valve (11) tail end.And block return spring (8), under the effect of its elastic force, make overhead-valve (11) have the active force that outwards moves.And overhead-valve (11) is moved inwards by pulling hand reel (17) wire drawing (16), support (6).Support (6) is made with the Elastic Steel material of 0.5MM, to guarantee overhead-valve (11), wire drawing (16) enough return elastic force is arranged.Hand reel (17) is installed on the left hand steering handle, the convenience when using with assurance.

Motor is pulled hand reel (17) and is forced overhead-valve (11) to move inwards when starting or quicken, and this moment, fuel oil (14) flow increased, and mixed gas (12) thickens.When middling speed, in order to save fuel oil, hand reel (17) is oppositely pulled, and under the effect of return spring, overhead-valve (11) leads to back, and air (15) increases, and fuel oil (14) reduces.

The processing of air fuel ratio regulator is simple, and cost is low, and is easy to install, is convenient to popularize.Throttle is also fine to transitionality at a high speed from idling.By service testing, fuel saving ratio reaches about 20%.Travel and use the air fuel ratio regulator except that reducing oil consumption, engine noise, vibration, blowdown all significantly reduce.Also bring great convenience when simultaneously, cold in the winter time car starts.

Claims

1, motorcycle under steam, can make vaporizer regulate the air fuel ratio regulator of excess air coefficient α within the specific limits, this regulator is characterized in that with adjusting the about overhead-valve (11) that moves of energy being housed in the guide pin bushing (9), and fixed support (6), join by wire drawing (16) and hand reel (17), by pulling the pulling of hand reel (17) through wire drawing (16), making support (6) generation folder try hard to recommend moving overhead-valve (11) moves inwards, return spring (8) is enclosed within and exposes on the overhead-valve (11) of adjusting guide pin bushing (9), make it have outside locomotivity by the baffle plate (7) that snaps in overhead-valve (11) the tail end groove, hand reel (1) is installed on the motorcycle left hand steering handle.