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Delivery unit

A technology of delivery unit and swirl flow, which is applied in the field of delivery unit, can solve the problems of not reaching the suction power and not always ensuring the liquid seal, etc., and achieve the effect of reducing costs

Active Publication Date: 2012-10-31
CONTINENTAL AUTOMOTIVE WUHU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this type of fuel tank is that at low levels fuel can no longer flow from one chamber through the saddle into the other chamber
However, it has been shown that under certain circumstances the suction power is not reached, from which it can be concluded that the liquid seal of the mixing tube outlet cannot always be ensured

Method used

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Experimental program
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Embodiment Construction

[0023] exist figure 1 A fuel tank 1 consisting of two chambers 2 , 3 is shown in . A delivery unit 4 is fastened in the fuel tank 1 and consists of a swirl box 5 and a fuel pump 6 arranged in the swirl box. The fuel delivered by the fuel pump 6 is supplied to an internal combustion engine (not shown) via a supply line 7 . A suction jet pump 8 is arranged on the inner wall of the baffle 5 , wherein its mixing tube 9 protrudes into the baffle. Fuel is conveyed from fuel pump 6 to suction injection pump 8 via line 10 . Another duct 11 extends from the suction jet pump 8 to the other chamber 2 . The fuel is delivered directly from the chamber 2 to the swirl box 5 through the pipe 11 . A deflector 16 is arranged downstream of the suction jet pump 8 .

[0024] The suction jet pump 8 (shown in FIG. 2 a ) consists of a working jet nozzle 13 , a mixing tube 14 with a discharge opening 15 and a suction line 11 . A deflector 16 is arranged in the region of the outlet opening 15 . ...

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Abstract

The invention relates to a delivery unit (4) comprising a compensating baffle pot (5) provided with a fuel pump (6) arranged therein and a sucking jet pump (8) for conveying a liquid to the baffle pot (5), wherein said sucking jet pump (8) comprises a propulsion jet nozzle (13) provided with an opening, a mixing pipe (14), a suction opening with a suction line (11) and a deflecting element (16) located downstream of said mixing pipe (14).

Description

technical field [0001] The invention relates to a delivery unit comprising: a swirl tank, a fuel pump arranged in the swirl tank, and a suction jet pump for delivery to the swirl tank, wherein the suction jet pump It consists of a working jet nozzle with a nozzle opening, a mixing tube, a suction port, and a suction pipe connected to the suction port. The suction injection pump is used to convey fuel from the fuel tank into a swirl box arranged inside the fuel tank. Background technique [0002] Fuel tanks are known in many forms. Since the fuel tank is adjusted in the motor vehicle through the existing installation space, it is formed as a fuel tank divided into a plurality of chambers. [0003] These cavities are mostly connected to the saddle. The problem with such fuel tanks is that fuel can no longer flow from one chamber through the saddle into the other chamber when the fill level is low. Since usually only one delivery unit is arranged in the fuel tank, the fuel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M37/02F02M37/10
CPCF02M37/106F02M37/025Y10T137/86212Y10T137/85978Y10T137/86348Y10T137/86075
Inventor 克劳斯·马克夫卡
Owner CONTINENTAL AUTOMOTIVE WUHU