CN201078296Y - Electric fuel injection pump assembly - Google Patents

Abstract

The utility model relates to an electric fuel pump assembly, which comprises a flange, a prop, a relief valve, a sensor, a pump core and a filter screen. The filter screen is connected with the pump core, which is positioned in a pallet of the fuel oil pump, through a filter screen pressing disc. An oil pump anti-vibration pad is arranged in the pallet of the fuel oil pump, and an oil pump bracket, in which a circuit board, a copper contact sheet and a sensor are installed, is fastened on the pallet of the fuel oil pump. The copper contact sheet and the sensor are connected with the circuit board. The copper contact sheet is connected with a float rod seat, which is positioned at the top of a float rod. The lower end of the prop is secured under the oil pump bracket, and an oil return pipe and an oil out pipe are fastened on the flange. The advantage of the utility model is that: with simple structure and complete functions, the utility model can provide a mini-size automobile with an iron oil tank, so as to realize the oil return system with small fuel oil volume in the automobile, which has small capacity. Moreover, the metal bracket is reliably, detachably and replaceably connected with a plastic valve seat.

Description

A kind of electric fuel pump assembly

Technical field

The utility model relates to a kind of automobile electronic fuel oil jet system, particularly a kind of electric fuel pump assembly.

Background technique

At present, the metal fuel tank of vehicle adopts metal flange interface fuel oil pump assembly mostly, and its pressure regulator valve is installed on the oily rail of motor, if after pressure regulator valve lost efficacy like this, it is very risky that the fuel oil of vehicle is revealed.Simultaneously such assembly structure need install back oil pipe under vehicle body, be unfavorable for the decline of oil temperature in the fuel tank.

The model utility content

The purpose of this utility model provides a kind of electric fuel pump assembly, to overcome the big shortcoming of fuel oil disclosure risk of existing fuel pump.

The purpose of this utility model is to be achieved through the following technical solutions:

A kind of electric fuel pump assembly comprises flange, pole, pressure regulator valve, sensor, pump core and filter screen, and described filter screen is connected to the pump core by the filter screen compressing tablet, and described pump core is positioned at fuel pump collet inside, is provided with the oil pump vibration pad in the fuel pump collet; Be fixed with oil pump bracket on the fuel pump collet, the inside of oil pump bracket is provided with circuit board, copper contact blade and sensor, and copper contact blade and sensor are connected on the circuit board, copper contact blade is connected with the fly rod seat, the fly rod seat is positioned at the top of fly rod, and the end of fly rod connects float, and the float collar is arranged on the float; Described pole lower end is fixed on the oil pump bracket top, and the upper end is connected with the flange that has the flange seal circle; Be fixed with return tube and oil outlet tube on the described flange, wherein return tube is fixed on the flange by the return tube clip, and described return tube is connected with pressure regulator valve by plug fixed plate and buckle.

The beneficial effect of electric fuel pump assembly described in the utility model is: simple in structure, multiple functional, can be minicar a kind of iron fuel tank is provided, realized the little oil return system of little volume vehicle fuel oil volume; Flange bracket adds and adopts high temperature brazing technology man-hour, optimizes follow-up plating processing, and Steel Support is connected with plastic seat reliably, detachably and replacing.

Description of drawings

With embodiment the utility model is described in further detail with reference to the accompanying drawings below.

Fig. 1 is the structural representation of electric fuel pump assembly described in the utility model.

1, dustproof emitting; 2, flange seal circle; 3, return tube clip; 4, plug fixed plate; 5, O RunddichtringO; 6, pressure regulator valve; 7, pole; 8, oil outlet tube; 9, lead wire set is upright; 10, sensor; 11, oil pump bracket; 12, fly rod seat; 13, copper contact blade; 14, fly rod; 15, pump core; 16, fuel pump collet; 17, oil pump antivibration pad; 18, filter screen; 19 filter screen compressing tablets; 20, float it; 21, float collar; 22, circuit board; 23, ground connection circle; 24, the external connection group is upright; 25, valve seat; 26, bayonet socket; 27, return tube seal ring; 28, flange; 29, return tube.

Embodiment

As shown in Figure 1, electric fuel pump assembly described in the utility model, comprise flange 28, pole 7, pressure regulator valve 6, sensor 10, pump core 15 and filter screen 18, described filter screen 18 is connected to pump core 15 by filter screen compressing tablet 19, described pump core 15 is positioned at fuel pump collet 16 inside, 16 are provided with oil pump vibration pad 17 in the fuel pump collet, with protection fuel pump pump core 15; Be fixed with oil pump bracket 11 on the fuel pump collet 16, the inside of oil pump bracket 11 is provided with circuit board 22, copper contact blade 13 and sensor 10, copper contact blade 13 and sensor 10 are connected on the circuit board 22, copper contact blade 13 is connected with fly rod seat 12, fly rod seat 12 is positioned at the top of fly rod 14, the end of fly rod 14 connects float 20, and float collar 21 is arranged on the float 20; Described pole 7 lower ends are fixed on oil pump bracket 11 tops, and the upper end is connected with the flange 28 that has flange seal circle 2; Be fixed with return tube 29 and oil outlet tube 8 on the described flange 28, wherein return tube 29 is fixed on the flange 28 by return tube clip 3, described return tube 29 is connected with pressure regulator valve 6 by plug fixed plate 4 and buckle 26 and adopts O RunddichtringO 5 sealed interfaces, described pressure regulator valve 6 places on the valve seat 25, on return tube 29 and oil outlet tube 8 tube heads flange seal circle 2 is housed.

Claims (2)

1. electric fuel pump assembly, comprise flange (28), pole (7), pressure regulator valve (6), sensor (10), pump core (15) and filter screen (18), it is characterized in that: filter screen (18) is connected to pump core (15) by filter screen compressing tablet (19), pump core (15) is positioned at fuel pump collet (16) inside, is provided with oil pump vibration pad (17) in the fuel pump collet (16); Be fixed with oil pump bracket (11) on the fuel pump collet (16), oil pump bracket (11) inside is provided with circuit board (22), copper contact blade (13) and sensor (10), copper contact blade (13) and sensor (10) are connected on the circuit board (22), copper contact blade (13) is connected with fly rod seat (12), fly rod seat (12) is positioned at the top of fly rod (14), the end of fly rod (14) connects float (20), and float (20) is provided with float collar (21); Pole (7) lower end is fixed on oil pump bracket (11) top, and pole (7) upper end is connected with flange (28); Be fixed with return tube (29) and oil outlet tube (8) on the flange (28); Pressure regulator valve (6) places on the valve seat (25), on return tube (29) and oil outlet tube (8) tube head flange seal circle (2) is housed.

2. require 1 described electric fuel pump assembly as requested, it is characterized in that: return tube (29) is fixed on the flange (28) by return tube clip (3); Return tube (29) is connected with pressure regulator valve (6) by plug fixed plate (4) and buckle (26) and adopts O RunddichtringO (5) sealed interface.

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