CN2081892U

CN2081892U - Device for controlling oil circuit of motor in coasting

Info

Publication number: CN2081892U
Application number: CN 89200405
Authority: CN
Inventors: 陈焕松
Original assignee: Panda Industrial Co ltd
Current assignee: Panda Industrial Co ltd
Priority date: 1989-01-07
Filing date: 1989-01-07
Publication date: 1991-07-31

Abstract

The utility model relates to an oil-saving device for controlling the idling oil circuit of a carburetor of an internal combustion engine, comprising an electromagnetic valve arranged on the idling oil circuit of the carburetor, a relay connected in series between an electromagnetic valve coil and a power source, a monitoring device of engine speed, and a signal device which is connected with the relay and is in response to the monitoring device. The signal device supplies an excitation signal to the relay; accordingly, when the engine speed is lower than the preset engine speed, the relay supplies the electric energy to the electromagnetic valve coil, and the idling oil circuit smoothly runs; when the engine exceeds the preset engine speed, the electric energy to the magnetic valve coil is cut off through the relay, the idling oil circuit is cut off, and accordingly, the oil-saving purpose is achieved.

Description

Device for controlling oil circuit of motor in coasting

The present invention relates to a kind of enriching device that utilizes explosive motor revolution control running down oil circuit.

The only phase effect at the beginning of running down or starting of the running down oil circuit of Carburetor, also inoperative in vehicle driving, but vehicle by slow down at a high speed, descending, brake gearshift or other factors and when decontroling throttle, the high suction that motor is produced in menifold but sucks big petrol from the running down oil circuit, this moment, vehicle itself did not need the power of motor, even needed to slow down with brake, so the gasoline that motor is sucked is during this period not only wasted, and the severe contamination air, harmful health.

The purpose of this invention is to provide a kind of usefulness so that the device that petrolic running down oil circuit blocks, thereby save fuel oil and the atmospheric pollution degree that minimizes.

The present invention adopts a control circuit to reach this purpose, and when engine speed surpassed a preset value, the rotating speed of this control circuit responding engine and encourage a solenoid valve was in order to block the running down oil circuit.

In following detailed description, these and other purposes of the present invention will become clearer, and in conjunction with the accompanying drawings, only by the example explanation, the present invention just can clearly be understood.

(not effect) sketch when Fig. 1 is the conducting of engine counter control circuit.

(effect) sketch when Fig. 2 is the outage of engine counter control circuit.

(effect) sketch when Fig. 3 is the high voltage wire induction type control circuit conducting of engine igniting system.

(effect) sketch when Fig. 4 is the outage of high voltage wire induction type control circuit.

Fig. 5 is platinum contact controlling type circuit turn-on (not effect) figure of engine igniting system.

Fig. 6 is platinum contact controlling type down circuitry (effect) figure of engine igniting system.

Fig. 7 is the simplified cross-sectional view of solenoid valve central shaft of the present invention when sucking back (the running down oil circuit is unimpeded).

Simplified cross-sectional view when Fig. 8 is solenoid valve central shaft release of the present invention (blocking-up of running down oil circuit).

Fig. 9 is a kind of simplified cross-sectional view that is fit to be installed in the embodiment of the solenoid valve of the present invention on the motorcycle.

Figure 10 is the constitutional diagram of Fig. 3 and Fig. 7 aspects.

Figure 11 is the constitutional diagram of Fig. 4 and Fig. 8 aspects.

The present invention's invention thought is illustrated with reference to three most preferred embodiments, and these three embodiments promptly are engine counter control circuit, high voltage wire inductive control circuit and platinum contactor control circuit.The purpose of each control circuit all is according to engine speed the solenoid valve of the running down oil circuit of Carburetor to be worked.

See figures.1.and.2, the tachometer control circuit comprises a control panel 17 in the tachometer (not shown), and control panel 17 is in response to the rotating speed of motor, i.e. the motion of tachometer pointer.Control panel 17 has an extension 18, and blocking-up is made it and can not be detected by photosensitive element 20 by the light that light emitting diode sends.When the speed of motor was lower than preset value, the extension 18 of control panel 17 had blocked photosensitive element 20, thereby (through amplifier 21) makes the contact A and the B closure of relay 22.When the speed of motor was higher than preset value, the extension 18 of control panel 17 had turned over suitable position, and the light that light emitting diode is sent arrives photosensitive element 20, made the contact A of relay 22 and B open (see figure 2) through amplifier 21.The power supply of relay 22 control electromagnetic valve, this will go through hereinafter.

Referring now to Fig. 3 and Fig. 4, high voltage wire induction type control circuit comprises a high voltage wire 15 that is contained on the engine igniting coil 14.Therefore, when on high voltage wire 15, high pressure occurring, just respond to the generation electric current in the coil 14.When engine speed was lower than preset value, induced signal can produce forward current, thereby made contact A and B closure by the circuit shown in Fig. 3.When engine speed was higher than preset value, as shown in Figure 4, the forward current that leads to solenoid valve S was cut off.

Fig. 5 and Fig. 6 represent the platinum contactor control circuit of solenoid valve S.This circuit has utilized the platinum contact P(negative terminal of the high-voltage ignition coil of motor).When the signal that is transmitted by this platinum contact during less than preset value, control circuit provides forward current to solenoid valve S.When engine speed increased, the signal that is transmitted by contact P reached preset value VR1, and the forward current that control circuit just will flow to solenoid valve S cuts off.

The running down solenoid valve is one to be installed in the solenoid valve that screw position is adjusted in the passage of running down oil circuit or running down, coil 6 produces induction when circuit turn-on (supply forward current), adjust screw 3 and promptly produce electromagnetic force, central shaft 2 is sucked back, make running down oil circuit 8 unimpeded (seeing also Fig. 7).When the supply disconnecton of control circuit, coil 6 loses induction, and adjusts screw 3 and promptly loses electromagnetic force, and spring 5 is about to central shaft 2 and releases, and blocking-up running down oil circuit 8 or running down spout 11(see also Fig. 8).Adjust screw 3 can adjust 11 of central shaft 2 withdrawal backs and running down oil circuit 8 or running down spouts apart from gap (can replace the effect and the effect of former running down adjustment screw), the running down solenoid valve makes the running down oil circuit unimpeded when power turn-on, when supply disconnecton, this solenoid valve promptly cuts off the running down oil circuit, so can make the automobile of not installing anti-spontaneous combustion solenoid valve, the effect of the anti-spontaneous combustion of motorcycle tool in fact.

When the running down solenoid valve is used in motorcycle, if necessary, its outer cover body can be made and the identical shape of former motorcycle carburetor float chamber base, so that install, an oil-proof rubber head 2A is established on the top of its central shaft, make it take place to increase adaptation when fuel-efficient effect blocking-up running down oil circuit enters the mouth, and the surface of contact of running down oil circuit and rubber tip can be exempted the machining clearance (seeing also Fig. 9) of precision.

As shown in the figure, when adjusting screw 3 generation electromagnetic forces, then this central shaft 2 is sucked back, running down this moment spout 11 is with spout 10 is all unimpeded at a slow speed, and only when adjusting screw 3 forfeiture electromagnetic forces, this central shaft 2 is promptly gone up the top, and this two spout is blocked, interrupt fuel flow path, so its effect is identical with automobile, not existing together is to be on shape and the direction.

Control circuit and its action function of running down solenoid valve installing back are described as follows: (if the running down revolution is 600 commentaries on classics, the preset value that solenoid valve is worked is set at 1,200 to be changeed).Connect tail-off, to B to S, coil 6 produces induction to forward current by D to A, adjusts screw 3 generation electromagnetic forces central shaft 2 is sucked back, and makes the running down oil circuit unimpeded, and motor is normally started and running down (seeing also Figure 10).When motor quickens, when making the signal of platinum contact generation surpass the preset value of VR1, relay begins action makes contact A, B outage, then solenoid valve loses electric power, adjust screw and lose electromagnetic force, central shaft 2 is that spring 5 is released and the 11 maintenance driving fits of running down spout, and blocking-up running down oil circuit (seeing also Figure 11).After this no matter motor is acceleration or deceleration regime, and the pull of vacuum in the menifold is high or low all can't to suck a gasoline from the running down spout.When engine revolution slows down signal that platinum contact is produced when being brought down below preset value VR1, the relay of control circuit promptly fails and makes contact A, B conducting, makes the running down oil circuit recover the unimpeded motor that makes and keeps normal running down speed.

Though the present invention is described and illustrates obviously should be appreciated that, the present invention is not limited to the disclosed content of these most preferred embodiments with reference to some embodiments, within the scope of the invention, be can do various improved.

Claims

1, a kind of device that utilizes the running down oil circuit of explosive motor revolution control Carburetor is characterized in that comprising:

A solenoid valve that is configured in effectively on the described Carburetor running down oil circuit, described solenoid valve are by current excitation, thereby when described solenoid valve was energized, described running down oil circuit was unimpeded, and when described solenoid valve was de-energized, described running down oil circuit was cut off;

Be connected in series in the coil of described solenoid valve and the relay between the power supply;

Engine speed monitoring device and the telltale in response to described monitoring device that is connected with described relay, described telltale are in response to described monitoring device and adjustable presetting under the engine speed;

Described telltale is supplied with described relay with excitation pulse, make and to be lower than described when presetting engine speed when described engine speed, described relay is supplied with described electromagnetic valve coil with electric energy, when engine speed surpasses describedly when presetting engine speed, described relay cuts off the electric energy that leads to described electromagnetic valve coil.

According to the device of claim 1, it is characterized in that 2, described engine speed monitoring device is a tachometer, described telltale is can be by the light path of a mechanical trap cut-out, and described trap is tabledriven by described revolution.

3, want 1 device according to right, it is characterized in that, described engine speed monitoring device is the inductor coil of a high voltage wire induction coupling of and described engine igniting system, and described telltale comprises a voltage comparator.

According to the device of claim 1, it is characterized in that 4, described engine speed monitoring device is an electronic circuit that negative pole drove for the spark coil of the ignition system of described motor.

5, according to the device of claim 1, it is characterized in that, described solenoid valve comprises an adjustment screw that has the spring-loaded axle, when the described solenoid valve of excitation, described screw is magnetized, and attracts described axle, and described axle is separated with the spout of described Carburetor running down, when described solenoid valve was de-energized, described load on spring was pushed described axle to described spout.

According to the device of claim 1, it is characterized in that 6, described solenoid valve is assembled in the position that screw is adjusted in former running down.

According to the device of claim 5, it is characterized in that 7, the adjustment screw of described solenoid valve can be adjusted the size apart from the gap between central shaft withdrawal back and the running down spout.

According to the device of claim 1, it is characterized in that 8, described solenoid valve its outer cover body when being used in motorcycle can be made and the identical shape of former Carburetor float chamber base, to save the installation time.