DE2254224A1 - MONITORING DEVICE FOR THE FLUID LEVEL IN RESERVOIRS, IN PARTICULAR IN BRAKE FLUID RESERVOIRS - Google Patents

Description

monitoring device for the liquid level in containers, especially in brake fluid reservoirs.

In the German patent application P 21 65 383.8 there is a liquid monitoring device described, through which damage is monitored, the leakage losses in the hydraulic brake circuit of a motor vehicle. A light signal, an acoustic signal or both signals are used at that moment generated, in which due to the falling fluid level in the reserve tank, this brake fluid is no longer considered sufficient can be. For this purpose, a carrier lever is pivotably mounted on a shaft in such a container, the one end carries a float and the other end has a contact that makes a dangerous drop in the liquid level Circuit closes by touching a fixed contact which is arranged in the container, with one contact to the battery and the other is connected to a signaling device on the other pole of the battery.

The present invention is based on the object of such To improve liquid monitoring device in that several level heights can be read.

According to the invention this object is achieved in that two or several microcontacts operated one after the other by the float lever operating various signal circuits.

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Tests have shown that monitoring can be improved when signals gradually appear, the different liquid levels so that the driver is warned in time that the liquid level is falling, so that necessary precautions can be made in time.

The float is used in combination with micro-contact arrangements, which cause a double contact or a multiple contact with a corresponding number of outlets and control circuits, which deliver a corresponding number of distinguishable signals, these signals being light signals, visually recognizable color signals, can be acoustic signals or combined signal arrangements.

An exemplary embodiment of the invention is described below with reference to the drawing. In the drawing show:

Fig. 1 shows a brake fluid reservoir with sufficient brake fluid and a float in neutral position,

Fig. 2 with the brake fluid reservoir shown in Fig.l lowered liquid level and activated signal transmitter,

Fig. 5 is a plan view.

In the brake fluid reservoir 1, a float 2 is mounted, which is attached to a rocker arm j5, which in turn actuated a microcontact arrangement 4, the outlets 5 of which are connected to a safety signal system.

According to the embodiment shown in the drawing, there are two Signal outlets provided for different levels. However, microcontact arrangements could also be provided, which more as two different outlets corresponding to different fluid levels.

The device according to the invention is simple and reliable Device for checking the liquid level in a container, in which there is an optical or acoustic warning display

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for a dangerous drop in the liquid level.

Patent claims "

309820/06 9 7

Claims (2)

Claims Device for monitoring the fluid level in containers, in particular in brake fluid tanks of motor vehicles, characterized in that that a float is attached to one end of a rocker arm, while the other end of the rocker arm with a microswitch arrangement interacts with two or more 3Conicv! 'outlets and that these discharges correspond to the different liquid levels in the container deliver light signals, optical signals, acoustic signals or combined signals when the liquid level is low sinks. 2. Device according to claim 1, characterized in that it is in the reserve brake fluid reservoir a hydraulic vehicle brake system is arranged. 309820/0697