DE102008045162A1 - Fuel tank for use in motor vehicle i.e. lorry, has measuring device with pick-up head from which plate is extended into fuel tank, where plate is fastened exclusively in or to end of pick-up head - Google Patents
Fuel tank for use in motor vehicle i.e. lorry, has measuring device with pick-up head from which plate is extended into fuel tank, where plate is fastened exclusively in or to end of pick-up head Download PDFInfo
- Publication number
- DE102008045162A1 DE102008045162A1 DE200810045162 DE102008045162A DE102008045162A1 DE 102008045162 A1 DE102008045162 A1 DE 102008045162A1 DE 200810045162 DE200810045162 DE 200810045162 DE 102008045162 A DE102008045162 A DE 102008045162A DE 102008045162 A1 DE102008045162 A1 DE 102008045162A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel tank
- head
- board
- plate
- pick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
- G01F23/2968—Transducers specially adapted for acoustic level indicators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Level Indicators Using A Float (AREA)
Abstract
Description
Die Erfindung betrifft einen Kraftstofftank, insbesondere zur Verwendung in einem Lastkraftwagen.The The invention relates to a fuel tank, in particular for use in a truck.
Derartige Kraftstofftanks weisen üblicherweise eine Vorrichtung zum Messen des Füllstands einer Flüssigkeit (nämlich des Kraftstoffs) in dem Kraftstofftank auf. Es ist bekannt, hierzu Geber bereitzustellen, die eine Platine umfassen.such Fuel tanks usually have a device for Measuring the level of a liquid (viz of the fuel) in the fuel tank. It is known, this To provide donors that include a circuit board.
So
ist in der
In
der
Es wurde ein neues Messverfahren zum Messen des Füllstands entwickelt, bei dem sich eine Platine über die gesamte mögliche Höhe des Füllstands erstreckt. Diese Platine wird mit elektrischen Signalen beaufschlagt. Eine weitere Platine in einem Schwimmer wirkt auf diese elektrischen Signale ein.It became a new measurement method for measuring the level developed, in which a board over the entire possible height of the level extends. This board is supplied with electrical signals. A another board in a float acts on this electrical Signals on.
Durch zahlreiche verwendete Bauelemente eines Kraftstofftanks, die sich bei Wärme ausdehnen, insbesondere auch die Platine selbst, kann die Messung verfälscht werden.By Numerous used components of a fuel tank that are expand when heated, especially the board itself, the measurement can be falsified.
Aufgabe der vorliegenden Erfindung ist es, eine möglichst präzise Messung des Füllstands mit einer Platine zu ermöglichen, die sich in vertikaler Richtung, und zwar in Steigrichtung der Flüssigkeit in den Kraftstofftank hineinerstreckt.task The present invention is to be as precise as possible To allow measurement of the level with a circuit board in the vertical direction, in the rising direction of the liquid into the fuel tank.
Die Aufgabe wird durch einen Kraftstofftank mit den Merkmalen gemäß Patentanspruch 1 gelöst: Die Platine erstreckt sich von dem Geberkopf in den Kraftstoff hinein und ist hierbei ausschließlich im oder am Geberkopf befestigt. Dadurch, dass die Platine an keinen weiteren Elementen befestigt ist, kann sie sich frei ausdehnen, so dass ein definierter Zustand entsteht. insbesondere ist es möglich, die Ausdehnung der Platine aufgrund einer Temperaturmessung zu ermitteln und gegebenenfalls die Signale, mit denen die Platine beaufschlagt wird, an die Ausdehnung anzupassen oder die Signalantworten unter Berücksichtigung der Längenausdehnung der Platine auszuwerten.The The object is achieved by a fuel tank with the features according to claim 1 solved: The board extends from the encoder head into the fuel and is here exclusively attached in or on the donor head. Due to the fact that the board is not connected to any attached to other elements, it can expand freely, so that a defined state arises. in particular it is possible to determine the extent of the board due to a temperature measurement and optionally the signals applied to the board is to adapt to the expansion or the signal responses below Consideration of the linear expansion of the board evaluate.
Bevorzugt ist die Platine punktuell mit einem ihrer Enden am Geberkopf befestigt. Dadurch unterliegt die Platine besonders wenig Einfluss einer Wärmeausdehnung der Bauteile des Geberkopfs.Prefers The board is selectively attached with one of its ends to the encoder head. As a result, the board is subject to very little influence of thermal expansion the components of the encoder head.
Es ist möglich, durch die Platine einen Stift zu stecken und diesen im Geberkopf zu lagern.It is possible to put a pin through the board and store this in the donor's head.
Das neuartige Messverfahren beinhaltet, dass Strukturen auf der Platine einen Referenzpunkt für die Füllstandsmessung definieren, z. B. einen Einkoppelpunkt für Signale in (einen) Metallleiter(n) auf der Platine. Dieser Einkoppelpunkt ist ein Punkt des Nulldurchgangs einer Sinuskurve, welche eine Sinusschwingung in einer sich längs erstreckenden Leiterstruktur definiert. Wenn sich nun dieser Referenzpunkt in unmittelbarer Nachbarschaft (z. B. in einem Abstand von kleiner als 10% der Gesamtlänge der Platine, bevorzugt < 5% der Gesamtlänge der Platine) von dem Ort der punktuellen Befestigung befindet, beeinflusst die Längenausdehnung der Platine die Messung kaum, denn der Referenzpunkt befindet sich in unmittelbarer Nähe der Lagerstellung und verschiebt sich daher kaum.The novel measuring method that involves structures on the board a reference point for level measurement define, for. B. a coupling point for signals in (one) Metal conductor (s) on the board. This coupling point is a point the zero crossing of a sinusoid, which is a sine wave defined in a longitudinally extending conductor pattern. If now this reference point in the immediate vicinity (eg at a distance of less than 10% of the total length of the Board, preferably <5% the total length of the board) from the location of the punctual Attachment is affected, affects the linear expansion the board hardly the measurement, because the reference point is located in the immediate vicinity of the storage position and moves therefore hardly.
Zur Erfindung gehört ein Kraftwagen, insbesondere ein Lastkraftwagen, mit einem erfindungsgemäßen Kraftstofftank.to Invention involves a motor vehicle, in particular a truck, with a fuel tank according to the invention.
Bereits durch das Bereitstellen eines Geberkopfs mit daran gelagerter Platine, die sich aus dem Geberkopf hinauserstreckt und ansonsten nicht an einem anderen, z. B. mit dem Geberkopf verbundenen, Bauelement gelagert ist, kann die Erfindung verwirklicht sein.Already by providing an encoder head with a board mounted thereon, which extends out of the donor's head and otherwise not on one others, z. B. connected to the encoder head, component stored is, the invention can be realized.
Nachfolgend wird eine bevorzugte Ausführungsform der Erfindung unter Bezug auf die Zeichnung beschrieben, wobeifollowing is a preferred embodiment of the invention below With reference to the drawing, wherein
Eine
mit
Die
Platine
Nun
soll auf der Platine
- 1010
- Platinecircuit board
- 1212
- Stiftpen
- 1414
- Kanteedge
- 1616
- unterer Teillower part
- 1818
- oberer Teilupper part
- 2020
- Referenzpunktreference point
- 2222
- Steuer- und AuswerteelektronikTax- and evaluation electronics
- 2424
- Anschlussstiftepins
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 202004018739 U1 [0003] - DE 202004018739 U1 [0003]
- - DE 202006011113 U1 [0004] - DE 202006011113 U1 [0004]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810045162 DE102008045162A1 (en) | 2008-08-30 | 2008-08-30 | Fuel tank for use in motor vehicle i.e. lorry, has measuring device with pick-up head from which plate is extended into fuel tank, where plate is fastened exclusively in or to end of pick-up head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810045162 DE102008045162A1 (en) | 2008-08-30 | 2008-08-30 | Fuel tank for use in motor vehicle i.e. lorry, has measuring device with pick-up head from which plate is extended into fuel tank, where plate is fastened exclusively in or to end of pick-up head |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008045162A1 true DE102008045162A1 (en) | 2010-03-04 |
Family
ID=41606064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810045162 Withdrawn DE102008045162A1 (en) | 2008-08-30 | 2008-08-30 | Fuel tank for use in motor vehicle i.e. lorry, has measuring device with pick-up head from which plate is extended into fuel tank, where plate is fastened exclusively in or to end of pick-up head |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008045162A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004018739U1 (en) | 2004-12-03 | 2005-03-03 | Lo, Jui-Yang | A fluid level sensor has a tube with float and ultrasonic or infrared float height detection using sensor in top |
DE202006011113U1 (en) | 2006-07-17 | 2007-02-08 | Wiesauplast Kunststoff Und Formenbau Gmbh & Co. Kg | Fill level sensor for determining fill level of liquid medium in brake fluid tank, has sensor units detecting position of float, where units are designed as infrared transmitting and receiving unit, and float is made of polypropylene |
-
2008
- 2008-08-30 DE DE200810045162 patent/DE102008045162A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004018739U1 (en) | 2004-12-03 | 2005-03-03 | Lo, Jui-Yang | A fluid level sensor has a tube with float and ultrasonic or infrared float height detection using sensor in top |
DE202006011113U1 (en) | 2006-07-17 | 2007-02-08 | Wiesauplast Kunststoff Und Formenbau Gmbh & Co. Kg | Fill level sensor for determining fill level of liquid medium in brake fluid tank, has sensor units detecting position of float, where units are designed as infrared transmitting and receiving unit, and float is made of polypropylene |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R005 | Application deemed withdrawn due to failure to request examination |