CN201800532U - Self-heating and oil level display integrated device for automobile fuel tank - Google Patents

Abstract

The utility model relates to a self-heating and oil level display integrated device for an automobile fuel tank, which comprises a controller, an oil outlet pipe and a base. The controller is connected with a casing of a fuel tank through a flange; an oil outlet at the bottom of the controller is connected with the oil outlet pipe with the base; an oil inlet is formed on the oil outlet pipe at the end connected with the base; an oil outlet interface, an oil return interface and a power interface are arranged on the side surface of the controller; the oil outlet interface is communicated with the oil outlet; the oil return interface is communicated with an oil return opening; and the oil inlet and the oil outlet are both provided with a temperature sensor and a heating plate, which are connected with the controller. The self-heating and oil level display integrated device can satisfy the requirement for the multifunctional application of the fuel tank self-heating and the oil level display, and a plurality of openings for mounting a plurality of components on the fuel tank are not required, so that the possibility that the leaked fuel oil causes the environment pollution is reduced; the structure is simple and compact; the manufacture is convenient; the cost is low; the maintenance is convenient; and the difficult problem that an automobile engine is difficult to be started in winter is completely solved.

Description

The integrated device that fuel tank of vehicle heats automatically and oil level shows

Technical field

The utility model relates to a kind of vehicle fuel case apparatus, a kind of specifically integrated device that fuel tank of vehicle heats automatically and oil level shows of testing oil level, preventing the obstruction of fuel tank fuel feeding.

Background technology

The driving engine of present large-scale passenger and freight car is diesel motor, normal No. zero diesel oil that uses of diesel motor, but under the lower environment of temperature, the easy wax deposition of No. zero diesel oil causes flowability of diesel oil to reduce, the serious fuel tank fuel feeding that may cause diesel motor stops up, and driving engine can't normally start, and has influenced the vehicle operation performance, therefore, the problems referred to above become the matter of utmost importance that fuel tank, automaker will solve.

The existing method that solves fuel tank normal fuel injection under the low temperature environment mainly utilizes vehicle to carry storage battery or the engine starting thermal source heats it, roughly be divided into two classes: the first kind is in the fuel tank outside fuel tank fuel feeding to be heated, as the patent No. is the diesel car Fuel supply system low temperature antiblocking device of 200620002774.9 disclosed a kind of source of electric light heated types, employing is provided with heating arrangement on the delivery line in the fuel tank external world, the direct current (DC) or the storage battery that utilize vehicle self to send heat as power supply, its complex structure, it is big to take vehicle space, because this heating arrangement is to heat on the pipeline that fuel oil is extracted out, can't the wax deposition diesel oil of bottom in the fuel tank be heated, heats is poor; For another the patent No. is the engine motor oil heating arrangement of CN200520126735.5, adopt the heat conduction aluminium sheet of charged heat pipe that oil-tank bottom is heated, can alleviate oil-tank bottom fuel oil wax deposition phenomenon to a certain extent, but, by the heat conduction aluminium sheet sump shell is conducted heat again to heat conduction aluminium sheet heating by tubular electric heating element, at last by the sump shell to fuel Heating, the intermediate heat conductive process is many, heat-energy losses is serious, and time of heat is longer relatively, and the efficiency of heating surface is low; Second class is in fuel tank inside the fuel tank fuel feeding to be heated, as the patent No. is the heating arrangement of viscous crude in 200620003900.2 disclosed a kind of automotive oil tanks, fuel tank internal and external heat loop carry out interchange of heat to fuel tank in the viscous crude heating, have complex structure equally, take that vehicle space is big, cost of manufacture is high, safeguard deficiency such as inconvenience.

Summary of the invention

For the heating arrangement complex structure that solves prior art IFO intermediate fuel oil case, take vehicle space, cost height, safeguard inconvenience, deficiency such as the efficiency of heating surface is low, the purpose of this utility model provides a kind of simple in structure, need not take vehicle space, productive costs is low, be convenient to maintenance, change, the integrated device that fuel tank of vehicle heats automatically and oil level shows that the efficiency of heating surface is high.

The technical solution of the utility model is: the integrated device that a kind of fuel tank of vehicle heats automatically and oil level shows, its technical characterstic is that described integrated device comprises controller, oil outlet pipe and base, the controller bottom is provided with flange, oil outlet and return opening, controller is connected on the fuel tank shell through flange, controller bottom oil outlet connects oil outlet pipe one end, the other end of oil outlet pipe connects base, the oil outlet pipe that connects oil outlet pipe one end of base is provided with oil inlet, oil inlet is arranged at and is set in the slipping through the net on the oil outlet pipe, and the oil inlet place of oil outlet pipe is provided with first temperature sensor and first heating plate in slipping through the net; Described controller side is provided with oil out port, oil return interface and power interface, and oil out port is communicated with oil outlet, and the oil return interface is communicated with return opening, and oil outlet is provided with second temperature sensor and second heating plate; Described first and second temperature sensor, first and second heating plate all connect controller; Described power interface connects the generating annex of storage battery or automotive engine.Automobile starting is connected controller power source, first temperature sensor of oil outlet pipe oil inlet is surveyed the interior fuel oil temperature of fuel tank and detectable signal is fed back to controller, controlling the first heating plate work by controller heats near the fuel oil slipping through the net, fuel oil after the heating flow to driving engine through oil outlet, oil out port successively by the oil outlet pipe oil inlet, and the engine operation oil return is flowed back to fuel tank by the oil return interface through return opening and finished a circulation.

Further, described controller lateral surface also is provided with the inside and outside pressure-gradient control valve of a connection fuel tank.

Again further, described controller bottom is provided with the dry-reed tube of an external automobile instrument, socket oil float on the dry-reed tube, and dry-reed tube one end connects base, and the other end is connected the outer part bottom of case flange.

Adopt above technical scheme, the beneficial effect that the utility model reaches is:

1, this device can carry the 40A relay, as much as possible reduces the frequent change of main frame producer to car load wire harness and electric appliance unit, and heating power is big, can require flow and temperature out to adjust between tens watts to 750 watts according to car load, and the setting range space is big;

2, first temperature sensor of oil outlet pipe is surveyed fuel oil temperature in the fuel tank, when fuel oil temperature is lower than fuel oil wax deposition temperature, control the first heating plate heated fuel oil by controller, first heating plate adopts self-constant temperature PTC heat element, the PTC heating plate has the fast flames of anger of heating, heating power can change automatic compensation with oil liquid temperature, even fluid does not flow, coolant-temperature switch is malfunctioning, or the adhesion of relay main contact does not disconnect heating always, final heat balance is at a constant temperature point between fluid and the heating plate, and potential safety hazards such as overheated can not take place;

3, built-in high precision second temperature sensor of controller oil outlet, can in real time the thermal afterburning oil temperature be transported to operator's compartment, be convenient to chaufeur and understand the fuel oil situation, and the second temperature sensor via controller is controlled second heating plate, when the oil outlet temperature still is lower than 3 ℃, second heating plate starts heating automatically, compensates the heating of first heating plate; When the oil outlet temperature is higher than 15 ℃, control first heating plate or second heating plate by controller and stop heating automatically, prevent that fluid is overheated, avoid the storage battery power consumption excessive;

4, the dry-reed tube external automobile instrument of controller, dry-reed tube adopts the straight-bar type inductive reactance, socket oil float on the dry-reed tube intuitively reflects fuel oil state fuel tank in, integrating traditional independent oil level gauge measuring device function with the upper and lower displacement of oil level by oil float on dry-reed tube;

5, it is inside and outside that the pressure-gradient control valve of controller is communicated with fuel tank, when the fuel tank internal pressure than extraneous when high, outlet valve is opened, outside fuel tank, carry out exhaust, when the fuel tank internal pressure was lower than the external world, air suction valve was opened, and carries out tonifying Qi in fuel tank, the pressure of opening can be adjusted according to the car load demand, guarantees that fuel tank is safe in utilization, indeformable.

Establishing the interior fuel oil temperature of controller detection fuel tank of temperature sensor and heating plate in the utility model adopts and controlling the heating plate keying makes the fuel oil temperature of the external fuel feeding of fuel tank can guarantee that vehicle normally starts, cooperate the dry-reed tube of controller to measure oil level in the demonstration fuel tank in real time, satisfy the multi-functional use of fuel tank, reduced the fuel tank opening simultaneously, the possibility of the environmental pollution that reduction causes because of fuel blow, it is simple in structure, easily manufactured, cost is low, it is convenient to keep in repair, change, and has thoroughly solved the difficult difficult problem that starts of automotive engine in winter.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the utility model running condition scheme drawing.

Among the figure: fuel tank 1, controller 2, power interface 3, base 4 slips through the net 5, oil outlet pipe 6, temperature sensor 7,8, heating plate 9,10, oil out port 11, oil return interface 12, oil outlet 13, return opening 14, oil inlet 15, pressure-gradient control valve 16, dry-reed tube 17, oil float 18, flange 19.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Fuel tank of vehicle shown in Figure 1 is the integrated device that shows of heating and oil level automatically, mainly comprises controller 2, base 4, slips through the net 5, oil outlet pipe 6, dry-reed tube 17 and oil float 18.The lateral surface of controller 2 is provided with oil out port 11, oil return interface 12, pressure-gradient control valve 16 and power interface 3, controller 2 flange in the bottom 19 are provided with oil outlet 13 and return opening 14, oil out port 11 is communicated with oil outlet 13, oil return interface 12 is communicated with return opening 14, controller 2 oil outlets 13 connect oil outlet pipe 6 one ends, oil outlet pipe 6 other ends connect base 4, the end that oil outlet pipe 6 connects bases 4 is provided with to be connected in slips through the net 5 on the base 4, the 5 in-to-in oil outlet pipes 6 of slipping through the net are provided with the oil inlet 15 that is communicated with fuel tank 1, oil inlet 15 is provided with first temperature sensor 7 and first heating plate 9, and controller 2 oil outlets 13 are provided with second temperature sensor 8 and second heating plate 10; One end of dry-reed tube 17 is connected in controller 2 bottoms, the other end is connected on the base 4, slip cap is connected to oil float 18 on the dry-reed tube 17, and dry-reed tube 17, first and second temperature sensor 7,8, first and second heating plate 9,10 all are connected in the control circuit in the controller 2.

Shown in Figure 2, the flange 19 of controller 2 bottoms is installed on the upper shell surface of fuel tank 1, and oil out port 11 and oil return interface 12 are positioned at outside the fuel tank 1, and oil outlet pipe 6 and dry-reed tube 17 are positioned at fuel tank 1, and base 4 is near fuel tank 1 inner bottom part.

Fuel tank of vehicle heats and the oil out port 11 of the integrated device that oil level shows and chargine line and the oil return line that oil return interface 12 is connected to automotive engine respectively automatically, and power interface 3 is connected to automotive battery.Behind the automobile starting, storage battery is through 2 power supplies of 3 pairs of controllers of power interface, 7 work of first temperature sensor also detect oil pipe oil inlet 15 fuel oil temperature on every side, when fuel oil temperature is lower than the wax deposition setting value, fuel tank 1 bottom fuel oil wax deposition, first temperature sensor 7 is sent to controller 2 with signal, the 9 work heating of controller 2 control first heating plate, the wax deposition fuel oil around the oil inlet 15 be heated the back melt the back by oil outlet pipe 6 successively through oil outlet 13, oil out port 11 to the automotive engine fuel feeding; This moment, second temperature sensor 8 detected hydraulic fluid port 13 fuel oil temperatures, when fuel oil temperature is higher than the automotive engine oil temperature supplying, second temperature sensor is sent to controller 2 with signal, controller 2 controls first heating plate 9 stops heating, when fuel oil temperature is lower than the automotive engine oil temperature supplying, second temperature sensor 8 is sent to controller 2 with signal, 10 heating of controller 2 controls second heating plate, the compensated fuel temperature reaches the automotive engine oil temperature supplying until fuel oil temperature, and controller 2 first and second temperature sensors of control stop heating.

Fuel oil via controller 2 oil out port 11 are to the automotive engine fuel feeding, oil inflame part back by automotive engine to the fuel tank oil return, returning-oil temperature is higher, can effectively improve fuel oil temperature in the case after entering fuel tank, heating sensor need not work long hours, only work when automobile starting, when fuel oil temperature reached the automotive engine oil temperature supplying, heating sensor promptly quit work.

Controller 2 upward pressure control cock 16 are controlled fuel tank 1 internal pressure all the time, guarantee the safe handling of fuel tank; Oil float 18 on the dry-reed tube 17 slides up and down on dry-reed tube 17 with fuel liquid level lifting in the fuel tank 1, and fuel level scenarios is reflected into auto meter, is convenient to chaufeur and understands fuel oil situation in the fuel tank.

Claims (3)

1. the fuel tank of vehicle integrated device that shows of heating and oil level automatically, it is characterized in that: described integrated device comprises controller (2), oil outlet pipe (6) and base (4), the controller bottom is provided with flange (19), oil outlet (13) and return opening (14), controller bottom oil outlet connects oil outlet pipe one end, the other end of oil outlet pipe connects base, the oil outlet pipe that connects oil outlet pipe one end of base is provided with oil inlet (15), oil inlet is arranged at and is set in the slipping through the net on the oil outlet pipe (5), and the oil inlet place of oil outlet pipe is provided with first temperature sensor (7) and first heating plate (9) in slipping through the net; Described controller side is provided with oil out port (11), oil return interface (12) and power interface (3), and oil out port is communicated with oil outlet, and the oil return interface is communicated with return opening, and oil outlet is provided with second temperature sensor (8) and second heating plate (10); Described first and second temperature sensor, first and second heating plate all connect controller.

2. the integrated device that fuel tank of vehicle according to claim 1 heats automatically and oil level shows, it is characterized in that: described controller (2) side also is provided with a pressure-gradient control valve (16).

3. the integrated device that fuel tank of vehicle according to claim 1 heats automatically and oil level shows is characterized in that: described controller (2) bottom also connects a dry-reed tube (17), and the dry-reed tube other end connects base (4), socket oil float (18) on the dry-reed tube.

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