CN1152543A

CN1152543A - Controller for automatic oil feeding

Info

Publication number: CN1152543A
Application number: CN 95119824
Authority: CN
Inventors: 张启信
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-12-18
Filing date: 1995-12-18
Publication date: 1997-06-25

Abstract

The present invention relates to an automatic refuelling controller capable of simply, easily and quickly implementing refuelling operation and controlling fuel charge. Said refuelling controller mainly is composed of a pneumatic fuel-blocking valve and a controller with motor pump, in which said fuel-blocking valve mainly is formed from upper and lower body, fuel-blocking plug and o-shaped ring, and said controller is composed of CPU, differential current detecting circuit and control press button. When refuelled if the engine fuel tank is not full, the fuel-blocking valve can be opened, the fuel can be smoothly injected, and when the fuel tank is filled up with fuel, the refuelling operation can be stopped automatically.

Description

A kind of automatic oiling control setup

The present invention relevant for a kind of to telecontrolled model engine-mounted tank gas filed control setup, especially refer to a kind of automatic oiling control setup, in pipeline, produce the pressure that hurriedly rises when utilizing fuel oil to be blocked when making fuel tank fill it up with oil, sense the variation of line pressure load and accurately control the fuel oil pumping and stop to refuel by controller, can avoid fuel oil in fuel tank overflows into silencer, cause the waste of oil plant and the shortcoming that engine starts difficulty, make the oiling of telecontrolled model reach purpose accurate, easy, rapid refueling.

Shake no matter the control simulator is various telecontrolled aircraft, automobile, ship ... Deng, all be subjected to liking of each personage of stratum all over the world, because external form is dwindled according to the entity ratio, authenticity is quite true to nature, its small easy collection and use engine to be power resources, its speed is fast, and activity space is more unrestricted, telecontrolled aircraft can be circled in the air in sky, remote-control car can run quickly on unmanned road or on the vacant lot, but the beach buggy hurricane is on the sandy beach, and that drone ship can travel on is waterborne, and external form and entity are true to nature, speed is fast, general just like entity, satisfy people swift as lightning control sense.

And telecontrolled model equipment must be filled it up with fuel tank 10 before using; As shown in Figure 1, under the influence owing to restriction that is subjected to telecontrolled model equipment volume and structure and manufacturing cost factor, the vent 1 of fuel tank 10 must connect a gas admittance pipe 12 in the pressurization mouth 21 of silencer 20, arrange when starting and be guided into vent 11 in the gas of silencer 20 by the gas admittance pipe 12 of pressurization mouthfuls 21 and enter generation pressure fuel tank 10 in by engine 30, auxiliary oil plant flows in the carburettor 31, stretch into the suction of going into oil pipe 13 of fuel tank 10 when being able to auxiliary carburetor 31 starts by 32 pairs in oil pipe, that is by the gas in 0 emission gases input of engine 3 in the silencer 20 fuel tank 10, make fuel tank 10 produce pressure, assist oil plant is delivered in the carburettor 31, use the effect of alternative " oil plant pumping ", except that can reducing volume and weight, more can reduce manufacturing cost.And fuel tank 10 is when refueling, as shown in Figure 1, system pulls up the oil inlet port 311 of oil pipe 32 from carburettor 31, mode such as hand pumping of mat or electronic pumping or with oiling machine 200 in oil storage barrel 100 is drawn oil plants perfusion oil pipes 32 and input fuel tank 10, but fuel tank 10 is to be arranged in the simulator, the number of filling oil plant can't be got by outward appearance, when fuel tank 10 is filled it up with and when overflowing, people are just found fuel tank 10 full positions; Therefore have following shortcoming on it uses:

(1) refuels slowly, and must note the action whether oil overflows (when filling it up with oil) constantly.

(2) when find to stop the gas filed time delay period by vision, cause oil plant to be spilled in the silencer 20, often cause the waste of oil plant by ventilation duct 12 to action induction.

(3) burning-point of oil plant is low, and the oil plant that overflows in the silencer 20 is easy to light because of temperature build-up, causes danger.

(4) cascading effect engine 30 start difficulty flow in the cylinder of engine 30 because overflow into the oil plant of silencer 20, will cause the light-up plug humidity when engine starts, and too much oil plant makes cylinder interior cause " hydraulic pressure contract phenomenon " to make the engine starting of can't turning round.

(5) therefore traditional oiling mode must be removed the long-pending oil in engine 30 cylinder behind full oil, can start the engine 30 smoothly.

The program of (6) so making or have much ado reduces the use excitement to simulator greatly, and engine 30 frequent easy disassembling flies into the loss of fine sand dust or finding, and hand is stained with oil stain especially.

Therefore solve traditional gas filed problem, be the problem that the dealer made great efforts to research and develop.

For solving above-mentioned traditional gas filed problem, on the ventilation duct of the silencer of engine pressurization mouthful and fuel tank, be connected in series control setup of the present invention, gas can be two-way circulated but restrain the oil resistance valve 90 of the oil plant circulation of fuel tank, when the full oil of fuel tank, oil plant imports gas admittance pipe 12 and the oil resistance valve 90 that arrives, make oil resistance plug 93 prop up gas port 913, make that oil plant is unlikely to be overflowed, treat oil pipe 32 tieback carburettors 31 and after stopping to add oil pressure, oil plant passes back in the fuel tank 10 from oil resistance valve 90, makes oil resistance valve 90 recover two-way ventilation, is enough to improve traditional gas filed defective, guarantee that oil plant does not overflow, make to refuel to move to be able to really, automation.

For making one of ordinary skill in the art can understand effect of the present invention, existing conjunction with figs. and figure number are described in more detail in the back with regard to structure of the present invention, composition:

The accompanying drawing simple declaration:

Fig. 1 is traditional type oiling scheme drawing;

Fig. 2 disposes simple diagram for the present invention;

Fig. 3 is a control flow diagram of block of the present invention;

Fig. 4 is controller line figure of the present invention;

Fig. 5 is the three-dimensional system diagram of the present invention's oil resistance valve;

Fig. 6 is the sectional structure chart of the present invention's oil resistance valve;

Fig. 7 is the action scheme drawing of the present invention's oil resistance valve;

The figure number simple declaration:

1 direct current power supply circuit A controller

80 pumpings of 10 fuel tanks

100 oil storage barrels, 81 mouths

11 vents, 82 oil-inlet ends

12 gas admittance pipes, 90 oil resistance valves

13 go into oil pipe 91 upper bodies

2 voltage stabilizing circuits, 911,921 joggles

20 silencers, 912 threaded portions

200 oiling machines, 913 gas ports

21 pressurizers, 915 accommodation chambers

92 times bodies of 3 switching regulator voltage-regulating circuits

30 engines, 922 outside threads

31 carburettors, 923 flanges

311 oil inlet ports, 924 air channels

32,83 oil pipes, 925 apical margins

4 control buttons, 926 tolerance ring grooves

5CPU microprocessing unit 927 main flow siphunculus

6 differential type current detection circuits, 93 oil resistance plugs

7 positive and negative rotation of motor circuit, 931 air drain mouths

8 pumping motor 94O shapes ring

See also Fig. 2-4, establish an annoying logical oil resistance valve 90 at engine 30

pressurization mouth

21 and 12 of fuel tank 10 ventilation ducts, and fuel tank 10 is gone into

oil pipe

13 and 100 of oil storage barrels are established controller A; This can be provided with oil resistance plug 93 in the logical oil resistance of the two-way gas valve 90, its periphery offers air drain 931, when refueling, can allow fuel tank 10 air exhaustion and inject oil smoothly, when oil is full, the pressure of oil makes oil resistance plug 93 songs be affixed on oil resistance valve gas port 913, and oil plant is no longer overflowed; This controller A comprises control path and pumping 80, and its control path is by direct current power supply circuit 1.Voltage stable circuit 2 (wherein the IC1 model is 78LO5), switching regulator voltage-regulating circuit 3, control key 4, CPU microprocessing unit (model is PIC16 C54LP) 5, differential type current detection circuit 6, positive and negative rotation of motor circuit 7, pumping motor 8 are constituted, wherein

This switching regulator voltage-regulating circuit 3 (IC2 model wherein is LM2576T-ADJ) is can change resistance R 4 and demodulating voltage, to adapt to the motor of different voltage specifications, increases the commonality of controller;

This controls button 4, is provided with control and refuels S1 key, the input control signal of S2 key, oil pumping S3 key of stopping to refuel;

This differential type current detection circuit 6 (IC4 wherein, IC5 and IC6 model are 1/4LM324) is a current comparison circuit, rises or the decline variable signal with the load current that detects the pumping motor running;

This positive and negative rotation of motor circuit 7 is to be made of institutes such as relays, and can changes positive and negative rotation of motor;

This oil resistance device 90 sees also shown in Fig. 5,6, mainly is provided with a upper and

lower body

91,92 that is symmetric shape hollow,

oil resistance plug

93,94 formations of O shape ring; Wherein

Upper body 91, inner hollow form an accommodation chamber 915, and the one end is established a joggle 911, and its inner accommodation chamber 915 interior ring edge faces are provided with threaded portion 912;

Following body 92, inner tool one main flow siphunculus 927 one ends also are made as joggle 921, other holds the threaded portion 912 of corresponding upper body 91 to be made as outside thread 922, the end face of this outside thread 922 is convexly equipped with a flange 923, the side of this flange 923 is offered a horizontal air channel 924, the apical margin of holding to the greatest extent in outside thread 922 925 is arranged with a tolerance ring groove 926, is able to ccontaining O shape ring 94;

Oil resistance plug 93 is made by silica gel full of elasticity, rounded plates, and this periphery is provided with the air drain mouth 931 of several breach;

As shown in Figure 6, this oil resistance plug 93 is placed in the accommodation chamber 915 of upper body 91, multiple outside thread by following body 92,922 are screwed into the threaded portion 912 of upper body 91, and the flange 923 proper apical graftings of following body 92 make oil resistance plug 93 location and unlikely becoming flexible, and the end face of upper body 91 are just closely replaced down the O shape ring 94 of body 92 apical margins 925 in the bottom surface of oil resistance plug 93, reach the effect of leakproof, the joggle 911 at two ends is sheathed on 12 combinations of gas admittance pipe respectively; Therefore, the gas at oil resistance valve 90 two ends then can oil blocks air channel 924 intercommunications of 93 air drain mouth 931 and flange 923.

See also shown in Fig. 2,6, the oil of combination resistance valve 90 is serially connected with ventilation duct 12.When engine 30 starts, carburettor 31 produces a suction (but suction is not strong) and is promptly adsorbed by 32 pairs of fuel tanks of oil pipe, 10 built-in oil plants, engine 30 is thrown into the air-flow part of silencer 20 by pressurization mouthful 21 inflow gas admittance pipes 12 simultaneously, in the upper body 91 of oil resistance valve 90, the air drain mouth 931 of pile warp oil resistance plug 93 peripheries flow to down the air channel 924 of body 92 flanges 923 sides, can manage 927 and import the gas admittance pipe 12 of end in addition again and flow in the fuel tank 10 and flow into the main flow of body 92 down, auxiliary compressed oil materials flow is gone in the carburettor 31; Therefore it is interior and without hindrance that gas can be imported fuel tank 10; Similarly, the air in the fuel tank 10 still can oppositely export in the silencer 20 (when refueling) to when carburettor 31 does not use, and oil resistance valve 90 therefore of the present invention has the logical function of two-way gas.

After understanding circuit of the present invention, system and device, control method of the present invention is described as follows: (please consulting Fig. 2,3,4,6,7 again).

One. automatic oiling with stop:

When desire is refueled to fuel tank 10 as shown in Figure 2, the oil pipe 32 that oil inlet port 311 from carburettor 31 is pulled up is socketed on the mouth 81 of pumping 80, the oil pipe 83 socket oil storage barrels 100 of the oil-inlet end 82 of pumping 90, and (please cooperate Fig. 3 by the button S1 of pressure-controlled button 4,4), the input action signal gives the CPU microprocessing unit, OA end by CPU is exported a control signal through resistance R 8, transistor Q1 is to switching regulator voltage-regulating circuit 3, make switching regulator voltage-regulating circuit 3 action and output voltage gives positive and negative rotation of motor circuit 7, its relay originally has been normally off and can have made pumping motor M rotate (just being set at changes), can draw the oil plant of oil storage barrel 100 and input in the fuel tank 10, the electric current device of motor M is detected state via the resistance R 16 of differential type current detection circuit 6 at this moment, and resistance R 15, capacitor C 6 is given filtering and is transported to IC4 through the IC6 amplification again, but IC5 forms a window shape comparator and monitoring motor M current value.

In the time of in oil plant is imported fuel tank 10, gas in the fuel tank 10 oppositely flows in the gas admittance pipe 12, hinder valve 90 and flow into oil, gas is oppositely exported to gas admittance pipe 12 and flows into silencer 20 and discharge through the air drain mouth 931 of oil resistance plug 93 by the air channel 924 of flange 923, and because the pressure of gas reflux is less and the speed gas channelling is fast, so gas blocks 93 by main flow siphunculus 927 ejections oil, but discharge rapidly and flow in the silencer 20 by the gas groove 924 of flange 923 sides, thereby to the very for a short time gas port 913 that is not enough to make its distortion obstruction accommodation chamber 915 of the ejection force of oil obstruction 93, thereby gas can flow in the silencer 20, when fuel tank 10 is full of oil plant, fuel tank 10 is to be arranged to be difficult in the simulator looking out, the pressure of oil plant mat pumping and flow into gas admittance pipes 12 and enter down the main flow siphunculus 927 of body 92 by vent 11, because the particle concentration of oil plant is much larger than air, air channel 924 deficiencies of flange 923 sides so that oil plant drain smoothly, therefore oil plant pressure moment increases and is clogged the gas port 913 of the accommodation chamber 915 of upper body 91 by the elastomeric oil resistance plug of main flow siphunculus 927 ejection tools 93 tops, as shown in Figure 7, air channel 924 inflow upper bodies 91 accommodation chambers 915 of part flange 923 must build up in the aperture that just may flow into upper body 91 accommodation chambers 915 when being full of with the oil plant in the space of oil resistance valve 93 simultaneously, therefore its speed is slower than the speed that 923 ejections of main flow siphunculus play oil resistance plug 93, therefore when oil plant is full of accommodation chamber 915, sealing is blocked by oil resistance plug 93 already in the aperture, oil plant promptly can't flow out, pressure more concentrates on oil resistance plug 93, pressure is bigger, and blockage effect is better; Because when oil plant can't continue to add fuel tank 10, pressure in the fuel tank 10 this pressure that rises is passed pumping 80 back by oil pipe 32, that is the load of motor M is increased, its electric current thereby increase suddenly, the negative input end of the IC5 of differential type current detection circuit 6 is risen slowly by the delayed-action voltage of IC6 resistance 13, capacitor C 5 at this moment, can be by the direct input of resistance R 11, R12, make IC5 export the OC end that a signal gives CPU, even CPU switching regulator voltage-regulating circuit 3 stops action, make motor M stop promptly to reach the purpose of automatic oiling.

When oil pipe 32 is desired tieback in carburettor 31, oil plant in the fuel tank 10 loses the pressure of pumping, the anti-oil plant of oil pipe 32 outflows that flows back into of oil plant part is when being collected in the oil drum 100, multiple with the oil inlet port 311 of oil pipe 32 tiebacks in carburettor 30, and the oil plant in the oil resistance valve 90 is back in the fuel tank 10 by gas admittance pipe 12, make oil resistance plug 93 lose the ejection force of oil plant and elastic recovery, can guarantee that in view of the above the unlikely overflow of oil plant goes into silencer 20 and pass back in the engine 30, avoid causing starting the engine 30 causing the dangerous of fuel and being difficult for starting the engine 30 puzzlement; And when engine 30 starts, the gas of part silencer 20 flows into gas admittance pipe 12, more can really the oil plant of hoarding remnants in gas admittance pipe 12 or the vent 11 be pushed fully and enter in the fuel tank 10, but can make oil resistance valve 90 and ventilation duct 12 two-way admittance gases, and the effect that unidirectional oil resistance is flowed out.

Two. stop to refuel temporarily:

Desire in refueling, to stop to refuel or not wanting to fill it up with by the oiling key or in refueling by mistake, also can stop to refuel temporarily, at this moment promptly import a control signal by the S2 key and give CPU, stop action and give switching regulator voltage-regulating circuit 3 by the signal that CPU stops signal output, and making relay be open circuit, power supply promptly is and opens circuit, and makes pumping motor M stop, promptly stop oil pumping and enter fuel tank, can stop to refuel.

Three. oil pumping:

When telecontrolled model does not use or collects, the oil plant in the fuel tank 10 must be extracted, cause the difficulty of in the future starting to prevent that fuel tank excess oil mistake from overflowing to pollute or catch fire easily and prevent in the oil plant inflow engine 30; When desire is made the oil pumping function, promptly import a signal by the S3 key and give CPU, and give 3 actions of switching regulator voltage-regulating circuit and output voltage gives the positive circnit NOT 7 of motor with signal is defeated by CPU, and send an output through resistance R 17 by the OD pin of CPU processing unit 5, transistor Q2, relay, make its action that normally closed point is opened, the normal battle is on-state, can make pumping motor M counter-rotating be the oil pumping function, also be the observation circuit current status by differential type current detection circuit 6 this moment, when oil plant exhausts, when the motor M of pumping 80 is non-loaded, electric current descends suddenly, makes IC4 output signal to CPU and reaches the function that stops motor M running.

So, by the combination utilization of the present invention's oil resistance valve, pumping and controller as can be known of above-mentioned control method, when improving the tradition oiling really, the problem of oil plant overflow to silencer and the engine, and finish the gas filed action with simple, convenient and more efficient mode, the player is provided convenient and practical with progressive design when the leisure operation.

Claims

1. an automatic oiling control setup establishes one and can hinder valve by the logical oil of two-way gas between engine muffler pressurization mouth and fuel tank ventilation duct, and fuel tank is gone into to establish controller between oil pipe and oil drum; This controller comprises control path and pumping, its control path is made of direct current power supply circuit, voltage stabilizing circuit, switching regulator voltage-regulating circuit, control key, CPU microprocessing unit, differential type current detection circuit, positive and negative rotation of motor circuit, pumping motor, it is characterized in that

This switching regulator voltage-regulating circuit can change resistance and demodulating voltage, to adapt to the motor of different voltage specifications;

This controls button, in order to control the input control signal that refuels, stops, pumping;

This differential type current detection circuit is a current comparison circuit, rises or the decline variable signal in order to the load current that detects the pumping motor running;

This positive and negative rotation of motor circuit is made of relay, in order to can change positive and negative rotation of motor;

Can lead to the controller of oil resistance valve and each circuit formation by two-way gas according to above-mentioned, during oiling, give the pumping motor running by controller output signal and refuel, the while is monitored revolution electric current by the differential type current detection circuit of controller; When filling it up with oil, be and block not Channel Group's state by the obstruction gas port of can two-way gas logical oil resistance valve, producing pressure increases the pumping motor load, and load current is increased, the benchmark of controller induction is provided, controller is that exportable danger signal makes the pumping motor stop, the effect that reach automatic oiling, stops.

2. a kind of automatic oiling control setup as claimed in claim 1; This oil resistance valve mainly is to comprise upper and lower body, oil resistance plug, O shape ring etc. to constitute, and its upper and lower body profile is symmetric shape, and each end is established a joggle, it is characterized in that:

Upper body, inner hollow forms accommodation chamber, and its inner accommodation chamber interior ring edge face is provided with the threaded portion;

Following body, inner tool one main flow siphunculus, corresponding upper body threaded portion is made as outside thread, and this externally threaded end face is convexly equipped with a flange, and the flange side is offered a horizontal air channel, and the apical margin of holding to the greatest extent in outside thread is arranged with a tolerance ring groove, is able to ccontaining O shape ring;

The oil resistance plug is rounded plates, and its periphery is provided with the air drain mouth of several breach;

Above-mentioned oil resistance plug is to be placed in the upper body accommodation chamber, and multiple external thread spiro fastening by following body is gone into the threaded portion of upper body, and flange just peaks at the oil resistance plug, and the joggle at two ends is sheathed on the ventilation duct combination; The gas at two ends is by the air drain hole of oil obstruction and the air channel intercommunication of flange; When the oil plant input main flow siphunculus of body and the ejection oil resistance aperture of body accommodation chamber beyond the Great Wall down, reach the effect of unidirectional oil resistance.