CN201344819Y - Fuel sensor for oil pump of automobile - Google Patents
Fuel sensor for oil pump of automobile Download PDFInfo
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- CN201344819Y CN201344819Y CNU2009201127428U CN200920112742U CN201344819Y CN 201344819 Y CN201344819 Y CN 201344819Y CN U2009201127428 U CNU2009201127428 U CN U2009201127428U CN 200920112742 U CN200920112742 U CN 200920112742U CN 201344819 Y CN201344819 Y CN 201344819Y
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Abstract
The utility model discloses a fuel sensor for an oil pump of an automobile, which comprises a sensor seat, an installation pipe component, a circuit board component, a float component, a filter screen, an air valve component and an oil pump motor, wherein, the installation pipe component comprises a function pipe and a connecting fixed pipe which are connected into a whole; the oil pump motor comprises a motor housing, a motor, a connecting pipe and a motor base; the motor housing and the function pipe are in matching connection through an installation raised line and an installation groove; the motor is installed in the motor housing and the motor base which are fitted into each other ; the connecting pipe is communicated with the function pipe; the sensor seat is connected with the installation pipe component; the circuit board component is positioned in the function pipe of the installation pipe component; the float component is positioned at the periphery of the circuit board component; the air valve component is positioned at the connecting end of the installation pipe component and the sensor seat, is mounted on the installation raised line corresponding to the top end of the function pipe, and is communicated with the sensor seat; and a filter screen is movably installed on the motor base. The sensor has the advantages of reasonable structure, high reliability and long service life, and the oil pump motor is assembled and disassembled conveniently.
Description
Technical field
The utility model relates to a kind of fuel-quantity transducer, and particularly a kind of oil quantity sensor of vehicle oil pump is used for the demonstration and the metering of oil mass in the automotive oil tank.
Background technology
Automobile oil mass sensor has float-type sensor, resistance sensor and tongue tube sensor, and float assembly all is set, and float assembly changes along with oil mass in the fuel tank and moves up and down, and the float position change realizes detecting the demonstration fuel tank fuel quantity by conversion.Oil pump fuel-quantity transducer shown in Figure 1 comprises sensor outer housing 16 ', sensor loam cake 1 ', float assembly 15 ', is sleeved on spring 7 ', screen modules 13 ' and Oil pump electrical machinery 12 ', motor fixing frame 11 ', motor base 14 ' on the guide pillar 6 '.2 ' is that fuel sucking pipe joint, 3 ' is that attaching plug, 4 ' is that oil returning pipe joint, 5 ' is that oil suction leather hose, 8 ' is that motor oil outlet, 9 ' is that motor power plug, 10 ' is that resistor disc makes up among Fig. 1.The Oil pump electrical machinery 12 ' of this oil pump fuel-quantity transducer is fixedly mounted in the sensor outer housing 16 ' by motor fixing frame 11 ', the direct fixed combination of motor pump and sensor is installed together, solved the coordination problem that is prone to when both install separately, but the oil pump fuel-quantity transducer of aggregate erection is if a parts corrupted, whole oil pump fuel-quantity transducer will be scrapped, increase user's use cost, also cause the serious waste of resource.The resistor disc of this structure sensor combination 10 ' simultaneously and float assembly 15 ' long-term friction, resistor disc combination 10 ' will be drawn disconnected, also is subjected to the pollution of fuel oil in the fuel tank easily and damages, and influences sensor reliability, the oil mass out of true that shows, serviceable life is shorter.
The disclosed fuel-quantity transducer of Chinese patent CN2884160 belongs to the tongue tube sensor, and it comprises sensor tube, float, fixed support.Be provided with the wiring board assembly in its sensor tube, the wiring board assembly is the wiring board that several tongue tubes, resistance connect to form; Float is provided with and can holds the through hole that sensor tube passes, and float is provided with the vertical stopper slot that matches with engine fuel sucking pipe, engine scavenge pipe, is provided with magnet in the float, the plane parallel setting at the magnetic line of force of magnet and wiring board assembly place; The bottom of engine fuel sucking pipe, engine scavenge pipe is fixed with fixed support, and sensor tube is supported on the fixed support.This fuel-quantity transducer adopts contactless working method, and the accuracy that oil mass shows is higher; Yet this fuel-quantity transducer engine fuel sucking pipe and engine scavenge pipe are provided with respectively, and trouble is installed; Not anti-fuel tank is inhaled flat device, fuel tank easily takes place in the use inhale flat phenomenon; Screen pack is a fixed sturcture, maintenance, cleaning inconvenience.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the defective that prior art exists, provide a kind of rational in infrastructure, the Oil pump electrical machinery mounting or dismounting are convenient, reliability is high and the oil quantity sensor of vehicle oil pump of long service life.
The technical scheme in the invention for solving the above technical problem is: this oil quantity sensor of vehicle oil pump, comprise circuit board assemblies, float assembly and screen pack, and its design feature is: also comprise sensor holder, mounting pipe assembly, air-valve assembly and Oil pump electrical machinery;
Described mounting pipe assembly comprises the function pipe that fuses and is connected and fixed pipe that function pipe arranged outside has the installation raised line that air-valve assembly and Oil pump electrical machinery are installed;
Described Oil pump electrical machinery comprises motor housing, motor, adapter and motor base, the installation groove that is complementary with the installation raised line that Oil pump electrical machinery is installed is set on the motor housing, motor housing is connected by installation raised line, installation groove coupling with the function pipe, motor housing and function pipe surface of contact are circular arc, the curvature of this circular arc contacts motor housing place external diameter and is complementary with the function pipe, motor housing and motor base are involutory, motor is contained in the involutory motor housing and motor base, takes over and the connection of function pipe; The active installation of Oil pump electrical machinery, easy disassembly are safeguarded and are changed.
Described sensor holder is connected with the mounting pipe assembly, described circuit board assemblies is positioned at the function pipe of mounting pipe assembly, float assembly is positioned at the circuit board assemblies periphery, described air-valve assembly is positioned at mounting pipe assembly and sensor holder link, and be installed on the installation raised line of function pipe top correspondence, connect with sensor holder, described screen pack is active to be installed on the motor base.
The described function pipe of the utility model oil quantity sensor of vehicle oil pump comprises fuel sucking pipe, scavenge pipe and plug-in road board component pipe, the described pipe that is connected and fixed connects fuel sucking pipe, scavenge pipe and plug-in road board component pipe, the adapter of described fuel sucking pipe and Oil pump electrical machinery communicates, described installation raised line is provided with four, two installation raised lines that air-valve assembly and Oil pump electrical machinery are installed of symmetry are set respectively on fuel sucking pipe and the scavenge pipe, described circuit board assemblies is positioned at plug-in road board component pipe, and float assembly is positioned at board component pipe periphery, plug-in road.Installation is simplified in the combination of function pipe.
The described sensor holder of the utility model oil quantity sensor of vehicle oil pump comprises sensor head and positioning chuck, sensor head is connected with positioning chuck, positioning chuck is connected with the mounting pipe assembly, positioning chuck is between sensor head and mounting pipe assembly, have oil-sucking hole, the gentle valve opening of spill port on the described sensor head, described oil-sucking hole and fuel sucking pipe communicate, spill port and scavenge pipe communicate, air valve hole and air-valve assembly communicate, and are connected to oil suction joint, the gentle valve union of back leakage connection on described oil-sucking hole, the gentle valve opening of spill port respectively.
The described function pipe of the utility model oil quantity sensor of vehicle oil pump comprises the electric food warmer fuel sucking pipe, economizer bank, fuel sucking pipe, scavenge pipe and plug-in road board component pipe, the described pipe that is connected and fixed connects the electric food warmer fuel sucking pipe, economizer bank, fuel sucking pipe, scavenge pipe and plug-in road board component pipe, described electric food warmer fuel sucking pipe and fuel sucking pipe communicate with the adapter of Oil pump electrical machinery, described installation raised line is provided with four, two installation raised lines that air-valve assembly and Oil pump electrical machinery are installed of symmetry are set respectively on fuel sucking pipe and the scavenge pipe, described circuit board assemblies is positioned at plug-in road board component pipe, and float assembly is positioned at board component pipe periphery, plug-in road.The setting of electric food warmer fuel sucking pipe and economizer bank makes sensor be suitable for cold district and uses.
The described sensor holder of the utility model oil quantity sensor of vehicle oil pump comprises sensor head and positioning chuck, sensor head is connected with positioning chuck, positioning chuck is connected with the mounting pipe assembly, positioning chuck is between sensor head and mounting pipe assembly, have the electric food warmer oil-sucking hole on the described sensor head, spill port, preheating gate, return-air hole, the gentle valve opening of oil-sucking hole, described electric food warmer oil-sucking hole and electric food warmer fuel sucking pipe communicate, spill port and scavenge pipe communicate, preheating gate and economizer bank communicate, oil-sucking hole and fuel sucking pipe communicate, the valve body top of air valve hole and air-valve assembly communicates described electric food warmer oil-sucking hole, spill port, preheating gate, return-air hole, on the gentle valve opening of oil-sucking hole respectively correspondence be connected to electric food warmer oil suction joint, back leakage connection, pre-hot joint, the return-air joint, the gentle valve union of oil suction joint.
The described air-valve assembly of the utility model oil quantity sensor of vehicle oil pump comprises valve body, O-ring seal, spring and valve, described valve body comprises the valve body top, valve body pad and body cap, body cap and valve body top cover close, two chambers valve body about valve body adopts, its valve body top is valve body top, two chambers, seal all is equipped with in the chamber, the left and right sides of described valve body, spring and valve, spring is between valve body pad and valve, seal is contained in valve body pad periphery, indoor valve body pad top, a described valve body left side is contained in valve body top internal upper part, valve withstands body cap, described valve body right ventricle inner valve body pad is contained in the body cap top, valve withstands valve body top, and described valve shell is provided with the air valve of the installation raised line coupling of the installation air valve in the function pipe outside raised line is installed.Air-valve assembly can prevent effectively that the fuel tank suction is flat.
The described scavenge pipe of the utility model oil quantity sensor of vehicle oil pump bottom is provided with the acceleration oil return apparatus, described acceleration oil return apparatus comprises two spill ports, top plug and return spring, top plug and return spring are contained between two spill ports, and the return spring two ends are withstood plug respectively and are positioned at following spill port.Quicken oil return apparatus and can guarantee smooth oil return.
The described sensor head of the utility model automobile oil mass sensor adopts the one-shot forming moulding, and positioning chuck adopts metalwork, between described positioning chuck and the mounting pipe assembly O-ring seal is housed.
The described circuit board assemblies of the utility model oil quantity sensor of vehicle oil pump comprises wiring board, resistance and tongue tube, resistance and tongue tube assembling are in the circuit board, described float assembly comprises float and magnet, float is installed in board component pipe periphery, plug-in road, magnet is positioned in the middle of the float, and the magnetic line of force of magnet is parallel with the circuit board assemblies mounting plane.
The utility model compared with prior art has the following advantages: 1, rational in infrastructure, mounting or dismounting convenience.The utility model oil quantity sensor of vehicle oil pump has designed Oil pump electrical machinery and the movable mounting structure of screen pack, with need be on automotive oil tank independent fuel sucking pipe, the scavenge pipe of installing of prior art, and the effective pipe central combination that is connected and fixed of each function such as plug-in road board component pipe, make sensor assembling, dismounting and installation become very simple and direct, maintain easily maintenance, be convenient to change the parts of damage.2, reliability height and long service life.The air-valve assembly of the utility model oil quantity sensor of vehicle oil pump design can be regulated the inside and outside air pressure of fuel tank automatically, prevents that effectively the fuel tank suction is flat, avoids occurring unexpected.Adopt the contactless working method of electronics tongue tube, solved prior art fuel-quantity transducer electronic devices and components problem easy to wear, prolong fuel-quantity transducer serviceable life, improve the precision of sensor.3, the scope of application is wide.Because the utility model oil quantity sensor of vehicle oil pump has designed electric food warmer fuel sucking pipe and economizer bank, at cold snap below 0 ℃, open electric food warmer fuel sucking pipe and economizer bank, be convenient to the quick retrofire of automobile, overcome cold snap car engine difficulty, widened the sensor area of application.
Description of drawings
Fig. 1 is a prior art oil pump fuel-quantity transducer structural representation, the band broken section.
Fig. 2 is the utility model embodiment 1 oil quantity sensor of vehicle oil pump structural representation, the band broken section.
Fig. 3 is Fig. 2 left view, the band broken section.
Fig. 4 is the vertical view of Fig. 2.
Fig. 5 is a mounting pipe assembly cross-sectional structure synoptic diagram among Fig. 2.
Fig. 6 is an air-valve assembly structural representation among Fig. 2, and band is analysed and observe.
Fig. 7 is the utility model embodiment 2 oil quantity sensor of vehicle oil pump structural representations, the band broken section.
Fig. 8 is the left view of Fig. 7, the band broken section.
Fig. 9 is the vertical view of Fig. 7.
Figure 10 is a mounting pipe assembly cross-sectional structure synoptic diagram among Fig. 7.
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described by embodiment.
Embodiment 1:
Present embodiment is the oil quantity sensor of vehicle oil pump that the function pipe of mounting pipe assembly adopts three pipe combinations, and concrete structure is referring to Fig. 2～4.This oil quantity sensor of vehicle oil pump comprises sensor holder 1, mounting pipe assembly 2, circuit board assemblies 4, float assembly 5, air-valve assembly 3, screen pack 6 and Oil pump electrical machinery 8.Mounting pipe assembly 2 comprises the function pipe that fuses and is connected and fixed pipe 2-1 that function pipe arranged outside has the installation raised line that air-valve assembly 3 and Oil pump electrical machinery 8 are installed.Sensor holder 1 is connected with mounting pipe assembly 2; Circuit board assemblies 4 is positioned at the function pipe of mounting pipe assembly 2; Float assembly 5 is positioned at circuit board assemblies 4 peripheries; Air-valve assembly 3 is positioned at mounting pipe assembly 2 and sensor holder 1 link, and is installed on the air valve installation raised line 2-7 of function pipe top correspondence, connects with sensor holder 1; Active installation screen pack 6 on the motor base 8-3 of Oil pump electrical machinery 8, screen pack 6 active mounting meanss are convenient to clean, and make screen pack 6 keep preferable strainability.
Referring to Fig. 5, embodiment function pipe comprises fuel sucking pipe 2-2, scavenge pipe 2-6 and plug-in road board component pipe 2-4.As shown in the figure, three root functionality pipes link into an integrated entity by being connected and fixed pipe 2-1, originally it is mounting pipe assembly 2 that each the function pipe that need independently install on automotive oil tank is concentrated, take cassette to install, save the set-up time, improved the sealing effectiveness of fuel tank, reduced because the fuel tank that the improper gas leakage of installation causes is inhaled flat risk.Fuel sucking pipe 2-2 communicates with the adapter 8-1 of Oil pump electrical machinery 8.The bottom of scavenge pipe 2-6 is provided with quickens oil return apparatus 2-61, this acceleration oil return apparatus 2-61 comprises 1# spill port 2-611, top plug 2-612, return spring 2-613 and 2# spill port 2-614,1# spill port 2-611 is positioned at above the 2# spill port 2-614, top plug 2-612 and return spring 2-613 are contained between 1# spill port 2-611 and the 2# spill port 2-614, and return spring 2-613 two ends are withstood plug 2-612 and 2# spill port 2-614 respectively.Be provided with four on the function pipe of mounting pipe assembly 2 raised line is installed, mill out each two of air valve installation raised line 2-7, motor installation raised line 2-8 respectively at the fuel sucking pipe 2-2 and the scavenge pipe 2-6 outside, the air valve that fuel sucking pipe 2-2 and scavenge pipe 2-6 upward are provided with is installed raised line 2-7,2-8 is symmetrical for motor installation raised line.
Referring to Fig. 6, embodiment air-valve assembly 3 comprises valve body, O-ring seal, spring and valve.Valve body comprises valve body top 3-1, valve body pad and body cap 3-6, and body cap 3-6 and valve body top 3-1 cover.Two chambers valve body about valve body adopts, its valve body top 3-1 is valve body tops, two chambers.Valve shell is provided with the air valve installation raised line that raised line 2-7 coupling is installed with the air valve in the function pipe outside.As shown in the figure, seal, spring and valve all are equipped with in the chamber, the left and right sides of valve body, and the embodiment seal adopts O type circle.The indoor valve body pad in a valve body left side
zThe 3-2z top is contained in valve body top 3-1 internal upper part, valve
z3-5z withstands body cap 3-6, spring
z3-4z is positioned at the valve body pad
z3-2z and valve
zBetween the 3-5z, O type circle
z3-3z is contained in the valve body pad
zThe 3-2z periphery.Valve body right ventricle inner valve body pad
y3-2y is contained in body cap 3-6 top, valve
y3-5y withstands valve body top 3-1, spring
y3-4y is positioned at the valve body pad
y3-2y and valve
yBetween the 3-5y, O type circle
y3-3y is contained in the valve body pad
yThe 3-2y periphery.Among the figure, 3-7 is the valve body rubber plug, is to establish for valve body top 3-1 mold is convenient; 3-8 is the O-ring seal that is contained on the 3-1 of valve body top, guarantees that air-valve assembly 3 and being connected of sensor head 1-1 seal air tight.When automobile starting, air enters the valve body right ventricle of air-valve assembly 3, extrusion spring by the air valve hole 1-5 on the sensor holder 1
y3-4y, air can enter fuel tank; When automobile was out of service, the gas in the fuel tank can push the indoor spring in a valve body left side of air-valve assembly 3
z3-4z, air are discharged from and remove, and recover the state of vacuum in the fuel tank.Air-valve assembly 3 this automatic regulatory functions, the inside and outside air pressure of trim tank prevents that the fuel tank suction is flat well, improves the sensor dependability.The simultaneously independent patent protection of this air-valve assembly the applicant.
Embodiment circuit board assemblies 4 comprises wiring board, resistance and tongue tube, and resistance and tongue tube are assembled in the circuit board, and circuit board assemblies is positioned at plug-in road board component pipe 2-4.The electronic devices and components that are assembled on the circuit board assemblies 4 in the board component pipe 2-4 of plug-in road carry out encapsulation process, magnet 5-1 among circuit board assemblies 4 and the float 5-2 is contactless working method, solve contact fuel-quantity transducer electronic devices and components problem easy to wear, prolonged the serviceable life of sensor.
The embodiment sensor is provided with the Oil pump electrical machinery 8 of protection engine, during automobile starting, by the Oil pump electrical machinery oil suction, increases oil absorption, and oil suction replenishes to engine, alleviates the load of engine, reduces engine scuffing, prolongs its serviceable life.This Oil pump electrical machinery 8 comprises takes over 8-1, motor housing 8-2, motor base 8-3 and motor 8-4.Motor housing 8-2 and motor base 8-3 are involutory, and motor 8-4 is contained in involutory the motor housing 8-2 and motor base 8-3, and the fuel sucking pipe joint 2-21 that takes over the fuel sucking pipe 2-2 in 8-1 and the function pipe is communicated with.Motor housing 8-2 is provided with motor the installation groove that raised line 2-8 is complementary is installed, and motor housing 8-2 and function pipe surface of contact are circular arc, and the curvature of this circular arc contacts motor housing place external diameter and is complementary with the function pipe.During installation, be connected with the coupling that groove is installed, motor housing 8-2 be fixed on the function pipe of mounting pipe assembly 2 by raised line 2-8 is installed, thereby finish the active installation of Oil pump electrical machinery 8, overcome the fixed installation of prior art Oil pump electrical machinery, in case parts damages are arranged, the defective that whole sensor is scrapped.
Present embodiment is the contactless oil quantity sensor of vehicle oil pump of four pipe combinations that three root functionality pipes such as fuel sucking pipe 2-2, plug-in road board component pipe 2-4 and scavenge pipe 2-6 are fused by being connected and fixed pipe 2-1, is the sensor that utilizes the inductive effect between magnet steel, float, the tongue tube to make.When sensor is made, the forming circuit board component 4 in the circuit board that at first resistance and tongue tube is welded, circuit board assemblies 4 is installed among the board component pipe 2-4 of plug-in road; Then, outside the board component pipe 2-4 of plug-in road float assembly 5 is installed, float 5-2 can slide up and down along plug-in road board component pipe 2-4; Locking cap 7-1 is filled in bottom at plug-in road board component pipe 2-4, in order to prolong the serviceable life of sensor, guarantees tightness, and the protection electronic devices and components are not subjected to the pollution of greasy dirt and steam, also needs to coat in locking cap 7-1 periphery the glue of antiseep; Fill in stopper 7-2 in the bottom of fuel sucking pipe 2-2; Fill in stopper 7-3 in the bottom of scavenge pipe 2-6.In the assembling while of mounting pipe assembly 2, sensor head 1-1 is joined with positioning chuck 1-2 is corresponding, with an end of mounting pipe assembly 2 directly and positioning chuck 1-2 join, fuel sucking pipe 2-2 in the function pipe and sensor head 1-1 go up corresponding oil-sucking hole 1-9 conducting, scavenge pipe 2-6 and spill port 1-4 conducting; Then, firmly tighten fixing positioning chuck 1-2 and mounting pipe assembly 2.At last, air-valve assembly 3 is inserted positioning chuck 1-2 opposite position along raised line 2-7 is installed, the valve body top 3-1 of air-valve assembly 3 and the air valve hole 1-5 on the sensor head 1-1 are conducted, and so just can realize the unidirectional adjusting air pressure function of air valve.After finishing above-mentioned number of assembling steps, next carry out the assembling of Oil pump electrical machinery 8, be communicated with the oil suction joint 2-21 of the fuel sucking pipe 2-2 of mounting pipe assembly 2 taking over 8-1 earlier, to take over 8-1 inserts in the motor housing 8-2, then the power lead of motor 8-4 is connected to the attaching plug on the motor housing 8-2, motor 8-4 is put in the motor housing 8-2, again screen pack 6 is installed on the motor base 8-3, with motor housing 8-2 and the involutory installation of motor base 8-3, finally finish the assembling of oil quantity sensor of vehicle oil pump.
During use, take the cassette mounting means that oil quantity sensor of vehicle oil pump is contained in the automotive oil tank, the binding post 1-16 on the sensor head 1-1 is connected the general plug of peace, the general plug of peace is inserted supply socket.When engine start, work sucked oil in fuel tank when Oil pump electrical machinery 8 was opened, 2-2 is transported to motor car engine by fuel sucking pipe, such course of work has alleviated the working load of motor car engine, and the unnecessary oil of supply engine flows back to fuel tank in scavenge pipe 2-6, can cut the waste like this.Quicken oil return apparatus 2-61 under the more situation of oil return, not only can flow back to fuel tank from 1# spill port 2-611, return spring 2-613 extruding 2# spill port 2-614 makes also conducting oil return of 2# spill port 2-614.Oil flows in the process of car engine, may produce gas in a small amount in the fuel tank and cause the fuel tank inner and outer air pressure poor, influences normal fuel injection; Regulate by the air pressure balance that air-valve assembly 3 carries out inside and outside the fuel tank automatically, both kept normal fuel injection, automobile balance is exercised, prevent that again fuel tank from inhaling flatly, guarantee that automobile balance travels.Float assembly 5 shows the oil level height in the fuel tank.
Embodiment 2:
Referring to Fig. 7～10, function pipe in the mounting pipe assembly of present embodiment has increased electric food warmer fuel sucking pipe 2-3 and economizer bank 2-5 than embodiment 1, is that five root functionality pipes such as electric food warmer fuel sucking pipe 2-3, economizer bank 2-5, fuel sucking pipe 2-2, scavenge pipe 2-6 and plug-in road board component pipe 2-4 add the contactless oil quantity sensor of vehicle oil pump of six pipe combinations that is connected and fixed pipe 2-1 assembling.As shown in figure 10, electric food warmer fuel sucking pipe 2-3 and fuel sucking pipe 2-2 communicate with the adapter 8-1 of Oil pump electrical machinery 8.Among electric food warmer fuel sucking pipe 2-3 or the economizer bank 2-5 electrical heating elements is housed, the setting of electric food warmer fuel sucking pipe 2-3 and economizer bank 2-5 makes sensor be suitable for cold district and uses.
As shown in Figure 7, have six holes such as oil-sucking hole 1-9, return-air hole 1-8, electric food warmer oil-sucking hole 1-7, preheating gate 1-6, air valve hole 1-5 and spill port 1-4 on the sensor head 1-1 of present embodiment.Oil-sucking hole 1-9 and fuel sucking pipe 2-2 communicate, electric food warmer oil-sucking hole 1-6 and electric food warmer fuel sucking pipe 2-3 communicate, and spill port 1-4 and scavenge pipe 2-6 communicate, and preheating gate 1-5 and economizer bank 2-5 communicate, the valve body top 3-1 of air valve hole 1-5 and air-valve assembly 3 communicates, and return-air hole 1-8 is used for ventilation in the sensor.Shown in Fig. 8,9, be connected to electric food warmer oil suction joint 1-11 on the electric food warmer oil-sucking hole 1-7, be connected to back leakage connection 1-14 on the spill port 1-4, be connected to pre-hot joint 1-13 on the preheating gate 1-6, be connected to return-air joint 1-12 on the return-air hole 1-8, be connected to oil suction joint 1-10 on the oil-sucking hole 1-9, be connected to air valve joint 1-15 on the 1-5 of air valve hole, connect the general plug of peace when sensor uses on the binding post 1-16.
During this embodiment oil quantity sensor of vehicle oil pump uses, when environment temperature when zero centigrade is following, open electric food warmer fuel sucking pipe 2-3 or economizer bank 2-5 earlier, the oil that drinks up in the fuel tank, through the heating of the electrical heating elements among electric food warmer fuel sucking pipe 2-3 or the economizer bank 2-5, resupply engine, the igniting problem of difficulty relatively reaches smooth startup when solving under the low temperature car engine effectively.Electric food warmer fuel sucking pipe 2-3 and economizer bank 2-5 work together with other function pipe at any time, can not produce conflict.
Other structure and the use of present embodiment are same as embodiment 1.
The utility model oil quantity sensor of vehicle oil pump is rational in infrastructure, all dismounting easily of parts such as its air-valve assembly 3, circuit board assemblies 4, float assembly 5, screen pack 6 and Oil pump electrical machinery 8, on-call maintenance, replacing at any time.
Claims (9)
1, a kind of oil quantity sensor of vehicle oil pump comprises circuit board assemblies, float assembly and screen pack, it is characterized in that: also comprise sensor holder, mounting pipe assembly, air-valve assembly and Oil pump electrical machinery;
Described mounting pipe assembly comprises the function pipe that fuses and is connected and fixed pipe that function pipe arranged outside has the installation raised line that air-valve assembly and Oil pump electrical machinery are installed;
Described Oil pump electrical machinery comprises motor housing, motor, adapter and motor base, the installation groove that is complementary with the installation raised line that Oil pump electrical machinery is installed is set on the motor housing, motor housing is connected by installation raised line, installation groove coupling with the function pipe, motor housing and function pipe surface of contact are circular arc, the curvature of this circular arc contacts motor housing place external diameter and is complementary with the function pipe, motor housing and motor base are involutory, motor is contained in the involutory motor housing and motor base, takes over and the connection of function pipe;
Described sensor holder is connected with the mounting pipe assembly, described circuit board assemblies is positioned at the function pipe of mounting pipe assembly, float assembly is positioned at the circuit board assemblies periphery, described air-valve assembly is positioned at mounting pipe assembly and sensor holder link, and be installed on the installation raised line of function pipe top correspondence, connect with sensor holder, described screen pack is active to be installed on the motor base.
2, oil quantity sensor of vehicle oil pump according to claim 1, it is characterized in that: described function pipe comprises fuel sucking pipe, scavenge pipe and plug-in road board component pipe, the described pipe that is connected and fixed connects fuel sucking pipe, scavenge pipe and plug-in road board component pipe, the adapter of described fuel sucking pipe and Oil pump electrical machinery communicates, described installation raised line is provided with four, two installation raised lines that air-valve assembly and Oil pump electrical machinery are installed of symmetry are set respectively on fuel sucking pipe and the scavenge pipe, described circuit board assemblies is positioned at plug-in road board component pipe, and float assembly is positioned at board component pipe periphery, plug-in road.
3, oil quantity sensor of vehicle oil pump according to claim 2, it is characterized in that: described sensor holder comprises sensor head and positioning chuck, sensor head is connected with positioning chuck, positioning chuck is connected with the mounting pipe assembly, positioning chuck is between sensor head and mounting pipe assembly, have oil-sucking hole on the described sensor head, the gentle valve opening of spill port, described oil-sucking hole and fuel sucking pipe communicate, spill port and scavenge pipe communicate, air valve hole and air-valve assembly communicate, described oil-sucking hole, be connected to the oil suction joint respectively on the gentle valve opening of spill port, the gentle valve union of back leakage connection.
4, oil quantity sensor of vehicle oil pump according to claim 1, it is characterized in that: described function pipe comprises the electric food warmer fuel sucking pipe, economizer bank, fuel sucking pipe, scavenge pipe and plug-in road board component pipe, the described pipe that is connected and fixed connects the electric food warmer fuel sucking pipe, economizer bank, fuel sucking pipe, scavenge pipe and plug-in road board component pipe, described electric food warmer fuel sucking pipe and fuel sucking pipe communicate with the adapter of Oil pump electrical machinery, described installation raised line is provided with four, two installation raised lines that air-valve assembly and Oil pump electrical machinery are installed of symmetry are set respectively on fuel sucking pipe and the scavenge pipe, described circuit board assemblies is positioned at plug-in road board component pipe, and float assembly is positioned at board component pipe periphery, plug-in road.
5, oil quantity sensor of vehicle oil pump according to claim 4, it is characterized in that: described sensor holder comprises sensor head and positioning chuck, sensor head is connected with positioning chuck, positioning chuck is connected with the mounting pipe assembly, positioning chuck is between sensor head and mounting pipe assembly, have the electric food warmer oil-sucking hole on the described sensor head, spill port, preheating gate, return-air hole, the gentle valve opening of oil-sucking hole, described electric food warmer oil-sucking hole and electric food warmer fuel sucking pipe communicate, spill port and scavenge pipe communicate, preheating gate and economizer bank communicate, oil-sucking hole and fuel sucking pipe communicate, the valve body top of air valve hole and air-valve assembly communicates described electric food warmer oil-sucking hole, spill port, preheating gate, return-air hole, on the gentle valve opening of oil-sucking hole respectively correspondence be connected to electric food warmer oil suction joint, back leakage connection, pre-hot joint, the return-air joint, the gentle valve union of oil suction joint.
6, according to claim 3 or 5 described oil quantity sensor of vehicle oil pump, it is characterized in that: described air-valve assembly comprises valve body, O-ring seal, spring and valve, described valve body comprises the valve body top, valve body pad and body cap, body cap and valve body top cover close, two chambers valve body about valve body adopts, its valve body top is valve body top, two chambers, seal all is equipped with in the chamber, the left and right sides of described valve body, spring and valve, spring is between valve body pad and valve, seal is contained in valve body pad periphery, indoor valve body pad top, a described valve body left side is contained in valve body top internal upper part, valve withstands body cap, described valve body right ventricle inner valve body pad is contained in body cap top, and valve withstands the valve body top, and described valve shell is provided with the air valve of the installation raised line coupling of the installation air valve in the function pipe outside raised line is installed.
7, oil quantity sensor of vehicle oil pump according to claim 6, it is characterized in that: described scavenge pipe bottom is provided with the acceleration oil return apparatus, described oil return apparatus comprises two spill ports, top plug and return spring, top plug and return spring are contained between two spill ports, and the return spring two ends are withstood plug respectively and are positioned at following spill port.
8, oil quantity sensor of vehicle oil pump according to claim 7 is characterized in that: described sensor head adopts the one-shot forming moulding, and positioning chuck adopts metalwork, between described positioning chuck and the mounting pipe assembly O-ring seal is housed.
9, oil quantity sensor of vehicle oil pump according to claim 8, it is characterized in that: described circuit board assemblies comprises wiring board, resistance and tongue tube, resistance and tongue tube assembling are in the circuit board, described float assembly comprises float and magnet, float is installed in board component pipe periphery, plug-in road, magnet is positioned in the middle of the float, and the magnetic line of force of magnet is parallel with the circuit board assemblies mounting plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201127428U CN201344819Y (en) | 2009-01-19 | 2009-01-19 | Fuel sensor for oil pump of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201127428U CN201344819Y (en) | 2009-01-19 | 2009-01-19 | Fuel sensor for oil pump of automobile |
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| Publication Number | Publication Date |
|---|---|
| CN201344819Y true CN201344819Y (en) | 2009-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201127428U Expired - Lifetime CN201344819Y (en) | 2009-01-19 | 2009-01-19 | Fuel sensor for oil pump of automobile |
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| Country | Link |
|---|---|
| CN (1) | CN201344819Y (en) |
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2009
- 2009-01-19 CN CNU2009201127428U patent/CN201344819Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091111 Effective date of abandoning: 20090119 |