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Method of determining the gas return rate at filling pumps

A technology for gas recovery and perfusion pumps, used in liquid distribution, transport or transfer devices, special distribution devices, packaging, etc.

Active Publication Date: 2008-04-30
FAFNIR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is not possible with existing methods of reducing the number of flow sensors, since only volumes are compared and not volume rates (i.e. volume per unit of time)

Method used

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  • Method of determining the gas return rate at filling pumps
  • Method of determining the gas return rate at filling pumps
  • Method of determining the gas return rate at filling pumps

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] exist figure 1 In , the filling pump 1 of the filling station is schematically represented, the most important components arranged in or assigned to the filling pump 1 including the components of the gas recovery system.

[0033] This filling pump 1 has two filling points, the first filling point 2 and the second filling point 2 ', can add fuel to two vehicles like this. The corresponding parts of the filling point 2 and the filling point 2' use the same reference numerals, but differ by an apostrophe. In this exemplary embodiment, carburetor fuel is filled at fill points 2 and 2'. Additional priming lines for other grades of fuel can also be provided at the priming pump 1 .

[0034] When the priming pump 1 works, the fuel passes through the fuel pipeline 4 from the underground storage tank 3 (the fuel pipeline branches out into two filling points 2 and 2 ') and is transported by the priming pump 6 and 6 ', and the fuel passes through the fuel flow meter 8 and 8...

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PUM

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Abstract

A method of determining the gas return rate at filling stations is carried out at filling pumps(1) with two filling points(2,2'), a first filling point(2) and a second filling point(2'). Each filling point is assigned at least one fuel flow meter of its own and both filling points(2,2') are assigned a common gas flow meter(20), which is arranged downstream of a meeting point(19 of the gas streams of the two filling points. The measured values obtained from the two fuel flow meters(8,8') and from the gas flow meter(20) are recorded at short predetermined time intervals in assignment to one another. In the case of at least partially simultaneous refuelling operations at the two filling points(2,2'), the information determined from the measured values of the fuel flow meters concerning the progression over time of the two refuelling operations is used for breaking down the measured sum of the gas flow(8,8') of the two filling points(2,2') into a gas flow assigned to the first filling point(2) and a gas flow assigned to the second filling point(2').

Description

technical field [0001] The present invention relates to a method of determining the rate of gas recovery at a priming pump having two priming points, each for carburetor fuel, each equipped with one (or more) fuel flow meters, and two The filling points are equipped with common gas flow meters. Background technique [0002] Installation of gas recovery systems at filling stations has been mandatory in certain European countries since the early 1990s. With the gas recovery system, during refueling of the car, the fuel vapors expelled when fuel is injected into the car's tank will be pumped out by the air pump and returned to the storage tank at the filling station. In this case, the volume flow of fuel (fuel flow) and gas (gas flow), i.e. the volumes of fuel and gas (vapour) delivered per unit time, should be equal. Terms such as gas recovery rate, gas flow, and gas volume flow are used synonymously herein. [0003] In traditional gas recovery technology, the gas volume fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B67D5/08B67D5/378B67D7/08B67D7/16B67D7/54
CPCB67D7/0486
Inventor C·莫勒W·施里坦拉彻S·孔特
Owner FAFNIR