57 A liquid level gauge including an elongate support member (111, and, a plurality of optical fibres (16) carried by the support member (11), said fibres (16) extending on the support member (11) generally lengthwise thereof and generally parallel to each other, said fibres (16) being spaced apart from each other circumferentially of the support member (11) and each fibre (16) being divided at a point along the length of the support member (11) by a gap (26) so arranged that the transmission of the light across the gap (26) from one part of a fibre (16) to the other part thereof is determined by the presence or absence in the gap (26) of the liquid being gauged, the gaps (26) of the fibres (16) being spaced lengthwise of the support member (11).

Eine Meßvorrichtung für den Ölstand in einem unter Überdruck stehenden, schwingenden Gehäuse (1) sieht eine gehäusefeste, unter den Ölspiegel reichende Meßhülse (2), die weit oberhalb des Ölspiegels Druckausgleichslöcher zum Gehäuseinneren hat, und einen Meßstab (3) vor, der einen weit in die Meßhülse (2) druckdicht einschiebbaren Stopfen (8) hat. Am eingesteckten Meßstab bildet sich eine Markierung (7) ab, die den innerhalb der Meßhülse (2) beruhigten Ölstand im Gehäuse (1) wiedergibt. Beim Herausziehen des Meßstabes (3) bis zum Stopfen (8) steigt der Ölstand in der Meßhülse (2) momentan aufgrund des Überdrucks im Gehäuse (1), ohne die bereits weit herausgezogene Markierung (7) am Meßstab (3) noch verfälschen zu können.

An oil level detecting device (1) includes: a tube insertion hole (60) which is provided in a crank case (30) upwardly and communicates with an oil chamber (50); a guide tube (70) which is inserted and fixed in the tube insertion hole (60); an oil level gauge (80) which is inserted into the guide tube (70) to be detachable from above; a partition (35) which is formed in the crank case (30) positioned between the oil chamber (50) and the tube insertion hole (60); and a through hole (90) which passes through the partition (35) and allows the oil chamber (50) to communicate with the tube insertion hole (60).

An engine (101) comprising an engine casing (103) and a dipstick (105), the dipstick (105) having a free end (121) that extends into the engine casing (103) when the dipstick (105) is installed to the engine casing (103), wherein the lowest natural frequency of the free end (121) of the dipstick (105) is above the highest operational frequency of the engine (101).

This application describes an invasive level probe for fluids.

The invasive level probe here described comprises one head, one body consisting of one flexible tube and having inside it guiding elements in dielectric material intersected by a flexible conducting wire that can be isolated by a flexible polymer.

This probe may have the most diverse applications, especially in the automotive area and the industrial area in general. The probe here presented is an excellent example of an application for vehicles, mainly for trucks, transport or working heavy duty vehicles such as buses, earthmoving machinery, etc.

Beschrieben wird ein Einfüllverschluss an insbesondere Brennkraftmaschinen mit einem unteren Fluidbehälter 13 zur Aufnahme eines Fluidvorrats, welches aus einem Gehäuseunterteil und einem stoff- oder formschlüssig mit dem Gehäuseunterteil verbundenen Einfüllrohr 10 gebildet ist und mindestens ein verschließbares Einfüllrohr 10 zur Befüllung des Fluidbehälters 13 mit Fluid aufweist.

The present disclosure relates to a detection system for detecting a liquid level in a rotating driveline component. The detection system may include a first sensor for detecting the liquid, a second sensor for detecting a rotational position of the driveline component, and a receiver for determining the liquid level based on the first and second sensors.

An apparatus for measuring the liquid level of molten metal comprises an image measuring device (5), a measuring probe (6), a lifting mechanism (1), a displacement sensor (11), an data processing system (4) and a correction marker(7). The lifting mechanism (1) is fixed to the molten metal container (10) or is independent of the molten metal container, the image measuring device (5) and the measuring probe (6) are installed on the lifting mechanism (1) or are independent of the lifting mechanism, and the optical axis of the image measuring device (5) is set at an angle with the geometric axis of the measuring probe (6), the measuring probe (6) is located within the field of view of the image measuring device (5), the image measuring device (5), the lifting mechanism (1) and the displacement sensor (11) are connected to the data processing system (4) respectively. A method for measuring the level of molten metal is also disclosed. The present invention is able to eliminate the influence by the slag layer floating on the molten metal and to achieve stably and continuously accurate measurement of molten metal level by using the measuring probe (6) inserting into molten metal through the slag-metal interface and having the slag thickness information after lifted.