CN101559711A

CN101559711A - Novel car fuel quantity sensor

Info

Publication number: CN101559711A
Application number: CNA2008100925755A
Authority: CN
Inventors: 刘载海; 朱献忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-17
Filing date: 2008-04-17
Publication date: 2009-10-21

Abstract

The invention relates to a novel car fuel quantity sensor and discloses an integrated fuel quantity sensor. The novel car fuel quantity sensor is characterized in that a fuel outlet pipe (2), a fuel return pipe (11), a fuel quantity monitor (10), a fuel box bidirectional ventilating valve (8), and the like are integrated on a clamping joint, and the clamping joint is provided with six clamping grooves connected with a fuel box and can be conveniently and quickly installed. The bidirectional ventilating valve remains that the internal pressure of the fuel box is closely balanced with the external pressure, and the fuel box can not generate deflating and floating phenomena and is completely sealed.

Description

Novel car fuel quantity sensor

Technical field

Novel car fuel quantity sensor of the present invention is applied on the fuel tank of vehicle.

Background technology

At present, oil outlet pipe on the fuel tank of vehicle, oil return pipe, fuel-quantity transducer are respectively the auto parts and components of 3 monomers, need be installed in 3 different positions of fuel tank, brought inconvenience for like this manufacturing enterprise that makes fuel tank, need on fuel tank, open 3 mounting holes, increase the manufacturing and quality-control cost, bring inefficiency also for car production producer, need be through 3 installations, quality control has also increased operation.Its two, the air extractor vent on the present fuel tank is straight-through form, like this automobile in the process of moving, jolting, tilt, topple over fully or the like of car all can cause fuel oil to waste from fuel oil fuel-displaced situation from air extractor vent.

Summary of the invention

Existing fuel tank opening is many, manufacturing cost is high in order to overcome, the efficiency of assembling of simplify working process and motor plant is low and the ventilation defective of fuel tank, and this novel car fuel quantity sensor has solved above problem.

The technical scheme that its technical matters that solves novel car fuel quantity sensor of the present invention adopts is:

1. oil outlet pipe, oil return pipe, fuel-quantity transducer data pipe are integrated on the clamping seat, have solved to be installed by 3 places in the past and become 1 present place and installed, one has improved production efficiency, has improved product design, has reduced productive costs.

The production of its two fuel tank Wei be not simple in structure yet, and quality has also obtained the actv. raising.

2. two-way connection for bbreather pipe has the anti-function of toppling over, also be installed on the clamping seat, fuel tank internal pressure and external pressure are remained on certain numerical value, fuel tank does not have expansion yet and inhales flat phenomenon, valve has been controlled the situation that fuel oil is outwards emerged, after also having solved automobile and toppling over fully, can be from two-way connection for bbreather pipe yet bleed, guarantee that the oil of fuel tank can not be wasted.

The explanation of novel car fuel quantity sensor Figure of description

1. oil outlet pipe, oil return pipe, fuel-quantity transducer system

1.1. in the Figure of description explanation, clamping seat (14), clamping seat tapped bore (6), oil outlet pipe (2), filter screen (1), this system is a through hole, has constituted fuel tank and has gone out oil system, oil outlet pipe (2) reaches the fuel tank bottom always, has guaranteed the normal operation of other fuel oil system and driving engine.

1.2. in the Figure of description explanation, clamping seat (14), clamping seat tapped bore (7), oil return pipe (11), this system is a through hole, constituted the fuel tank return oil system, oil return pipe (11) can not siphoned away the deep fat of returning at once apart from fuel tank Zhong Shan position by oil outlet pipe (2), cause the engine operation inefficiency.

1.3. in the Figure of description explanation, clamping seat (14), connector (4), data pipe (10), float (9) have constituted the fuel-quantity transducer device, go out different data by float at the location sensitive of different pastas, thereby oil mass what have been determined.

2. in the drawings, clamping seat (14), ventilation duct (3), two-way connection for bbreather pipe (8) have constituted the fuel tank breather.

2.1. when the pressure in the fuel tank at 5KPa during to-5KPa, valve block (19), valve block (23) are in closed condition, automobile bumpiness, inclination, toppling over not fully can oriented fuel tank outside bleed phenomenon;

2.2. when the pressure in the fuel tank during greater than 15KPa, valve block (19) is opened, valve block (23) is closed, and fuel tank outwards steams to inner valve block (19) SELF CL during to 5KPa of fuel tank, and valve block this moment (23) is still closed, and has solved the expansion situation of fuel tank;

2.3. when fuel tank internal pressure during at-20KPa, valve block (23) is opened, and valve block (19) is closed, and fuel tank is inwardly air-breathing to inner valve block (23) SELF CL during to-5KPa of fuel tank, valve block this moment (19) is still closed, and what solved fuel tank is inhaled flat situation.

The specific embodiment

The fuel tank hole is split into the plug-in circular hole, novel car fuel quantity sensor is put in from the hole, hold-down ring (13) must be screwed into clamping seat (14) top, easy like this clamping seat (14) is snapped in the circular bayonet socket of fuel tank.With clamping seat (14) card and fuel tank circular bayonet socket to after good, downwards firmly, at this moment clamping seat (14) can move down when clamping seat (14) is rotatable 0, rotate and represent that then clamping seat (14) snaps on the fuel tank fully when motionless, rotatably compress ring (13) with special tool and move down, to making O type circle (12) be close to fuel tank back seal fuel tank connector fully.

Exterior oil suction pipe is connected on the clamping seat tapped bore (6) of car fuel quantity sensor, the oil suction road is connected.Exterior oil return pipe is connected on the clamping seat tapped bore (7) of car fuel quantity sensor, oil return line is connected.

Connector (4) is pegged graft with the cooresponding connector of sensor external and is got final product.

Description of drawings:

Fig. 1 is a novel car fuel quantity sensor front axonometric drawing;

Fig. 2 is a novel car fuel quantity sensor reverse side axonometric drawing;

Fig. 3 is the novel car fuel quantity sensor front elevation;

Fig. 4 is the novel car fuel quantity sensor right elevation;

Fig. 5 is two-way connection for bbreather pipe front elevation;

Fig. 6 is two-way connection for bbreather pipe right elevation;

Fig. 7 is two-way connection for bbreather pipe birds-eye view;

Fig. 8 is the cutaway view of two-way connection for bbreather pipe Fig. 6;

Fig. 9 is two-way connection for bbreather pipe axonometric drawing.

Claims

1, novel car fuel quantity sensor comprises the integrated form clamping head that clamping seat (14), pressure ring (13), two-way connection for bbreather pipe (8), blanking cover (5), oil outlet (6), return opening (7), air extractor vent (3) are constituted.

2,, it is characterized in that described two-way connection for bbreather pipe (8) is made of 0 type circle (16), valve body (17), valve gap (18), valve block (19), spring (20), supporting blade (21), spring (22), valve block (23), supporting blade (24) as claims 1 described novel car fuel quantity sensor.