ES1068890U - Water sensor for fuel filters (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Water sensor for fuel filters, of the type designed to control the amount of water that accumulates inside the filters in the fuel supply lines to engines or machines, characterized in that it consists of a structured block (1) with a housing (1.1) of insulating material, housing inside a printed circuit (2), from which a cable (3) that extends on the outside to a connector (4) destined to establish connection with a reciprocal connector related to an electrode arranged inside the application filter, while the block itself (1) determines in its conformation a connector (6) for connection with the elements or functions to be activated, by going through the terminals (7) of said connector (6) in electrical relation with the printed circuit (2). (Machine-translation by Google Translate, not legally binding)

Description

Water sensor for fuel filters.

Technical sector

The present invention is related to the control of the level of water retained in the filters that are available in fuel lines, mainly diesel, proposing a sensor that can be integrated into said function without restricting the inside of the application filters.

State of the art

In diesel fuel lines to engines, boilers and similar applications, filters are available to clean the fuel from dirt particles or pollution that may accompany the fuel, in order to avoid sealing the injectors of the machine or engine of application, the humidity being also retained in said filters which carries the fuel, which must be evicted before its accumulation affects the function of the filter.

To prevent accumulated water from reaching affect the function of the filters, they can simply be carried carry out periodic checks and replacements of the filters, but this entails insecurity that is not desirable, so normally control devices capable of generate a warning signal that alerts when water accumulated in The filters reach a certain level.

There are different types of sensor-based devices capable of detecting the level of water at a certain height, even in combination with sensors of other functions, such as temperature, viscosity, turbidity, etc., but existing devices of this type are designed to be installed inside the application filters, which conditions a specific formation of the filters so that can accommodate the aforementioned devices and therefore a considerable size of the filters.

Object of the invention

According to the invention a sensor is proposed  capable of adequately carrying out the control function of the water level in the fuel filters, but with a embodiment that allows the arrangement of the structural assembly and Functional device outside the application filter, including within it only one electrode that is the one that detects water level

This sensor object of the invention comprises a block formed by a housing of insulating material, such as plastic or similar, within which a printed circuit is included, with which you connect a cable that goes outside and extends to a connection terminal with respect to a reciprocal terminal related to the electrode that goes inside the filter application.

In relation to the printed circuit they are arranged connected the terminals of a plug connector intended for external connections with the elements of signaling or function to be activated by the sensor.

The connection of the connector terminals of plug, with respect to the printed circuit, is established with a arrangement of springs, which achieves an assembly that ensures the effectiveness of the connections, without the need for welding of union, facilitating the constructive realization of the whole Functional of the device.

A simple device is thus obtained. and that it is likely to be disposed outside on its own application filter, or in an isolated placement and even away from the filter, thus allowing very wide possibilities for the functional arrangement of application, for the best use of the spaces available in each case, as long as that the application filters can be small, since they don't have to house the device inside sensor.

Said sensor object of the invention results in therefore of certainly advantageous features for your function, acquiring a life of its own and preferential character with respect to the conventional sensor devices of it application.

Description of the figures

Figure 1 shows a side view of the sensor  of recommended water.

Figure 2 is a perspective of the same sensor of water, from an angle of observation.

Figure 3 is a perspective of the sensor water from another angle of observation.

Figure 4 is a perspective of the block that it houses the functional set of the water sensor, with the housing cropped to see the interior elements.

Figure 5 is another perspective of the block that it houses the functional set of the water sensor, with the housing cropped, in another position.

Detailed description of the invention

The object of the invention relates to a device designed to control the level of water that is accumulates in the fuel filters, to activate a signal of alert or any other preventive function, before the amount of water accumulated in the corresponding filter causes malfunctions in the application system.

The recommended device comprises a block (1) that houses inside a printed circuit (2), from the which comes out a cable (3) that ends in a plug connector (4) for electrical connections.

The block (1) consists of a housing (1.1) of insulating material, defining on the outside conformations for the mounting bracket by conventional means of mooring, snaps, pressure, etc., while inside determines a configuration that allows setting the printed circuit (2) of a stable way.

Said housing (1.1) closes in the part bottom with a cover (5) covering the circuit housing printed (2), while on the top the housing itself (1.1) defines a connector (6) for the external connections of the device with the elements or functions that must be activated with he.

The terminals (7) of the mentioned connector (6) are established electrically connected to the printed circuit (2) arranged inside, determining the connections by springs (8) that ensure the electrical contact without need for welding, which facilitates constructive assembly Of the device.

With this embodiment the block (1) of the device can be placed anywhere suitable for your clamping, and with the connector (4) of the cable end (3) establish by plug electrical connection with a reciprocal connector related to an electrode disposed inside the filter of fuel whose water level is to be controlled, so that inside the application filter just go the electrode intended to detect the level of water when it reaches a certain level, while the elements of connection and housing of the printed circuit (2) that integrates the electrical functional set of the device, are arranged in the outside of the filter, so that it does not require a Special training and can be of a small size.

The placement of the block (1) can be established on the outside of the application filter itself, or in any other situation, even away from the filter, thus allowing to take advantage of the spaces available in each case in the most convenient way.
application.

Claims (4)

1. Water sensor for fuel filters, of the type intended to control the amount of water that accumulates inside the filters in the conduits of fuels fed to engines or machines, characterized in that it consists of a structured block (1) with a casing (1.1) of insulating material, housing a printed circuit (2) inside, from which a cable (3) extends from the outside to a connector (4) designed to connect with a reciprocal connector related to an electrode disposed inside the application filter, while the block itself (1) determines in its conformation a connector (6) for the connection with the elements or functions to be activated, the terminals (7) of said connector going (6) in electrical relation with the printed circuit (2). 2. Water sensor for fuel filters, according to the first claim, characterized in that the electrical connection between the terminals (7) of the connector (6) and the printed circuit (2), is established by springs (8) that ensure Pressure contacts. 3. Water sensor for fuel filters, according to the first claim, characterized in that the block (1) is closed at the bottom by a cover (5) covering the housing of the printed circuit (2) inside. 4. Water sensor for fuel filters, according to the first claim, characterized in that the housing (1.1) of the block (1) externally determines a configuration intended for fastening in mounting or mooring on the outside of the application filter or in a separate provision of
same.