公开(公告)号：US11079327B2

公开(公告)日：2021-08-03

申请号：US16080197

申请日：2017-03-01

Applicant: ELTEK S.p.A.

Inventor： Marco Pizzi ,  Piercarlo Merlano ,  Fabio Cavalli ,  Mauro Zorzetto

IPC: G01N21/552 ,  G01N21/43

Abstract: An optical sensor has a body including a transparent interface wall having an outer surface in contact with a liquid, to define therewith a reflection interface. An optical module is coupled at an inner surface of the interface wall, to detect a characteristic of the liquid substance via light reflection. The optical module includes a light emitter and a light receiver facing respective inclined surfaces of the interface wall. The optical module also includes a supporting structure which is elastically flexible, to enable the light emitter and the light receiver of the optical module to vary a relative position thereof and with respect to the inclined surfaces of the interface wall, when the supporting structure is secured to the inner surface of the interface wall.

公开(公告)号：US10906390B2

公开(公告)日：2021-02-02

申请号：US15773384

申请日：2016-10-31

Applicant: ELTEK S.p.A.

Inventor： Alberto Barbano ,  Marco Bizzarro ,  Mauro Zorzetto ,  Costanzo Gadini ,  Marco Pizzi ,  Piercarlo Merlano

IPC: B60K15/03 ,  F01N3/20 ,  F01N3/24

Abstract: Component of tank of liquid additive of system for treating exhaust gases of internal combustion engine, has body positioned in fluid-tight way at opening of the tank and incorporates plurality of functional devices for managing liquid additive to be delivered to treatment system. Body of tank component is moulded using plastic material chemically resistant to liquid additive and is provided with at least one passageway for liquid additive. The plurality of functional devices comprises pump and pressure sensor having pressure-sensitive element. Passageway comprises delivery path for the liquid additive, which is defined at least in part in first wall of body of tank component and has inlet end configured for connection to delivery duct of the pump. Defined at outer side of first wall is at least one seat for positioning at least one part of pressure sensor. Moreover defined in the first wall is at least one passage for setting delivery path for liquid additive in fluid communication with sensitive element of pressure sensor.

公开(公告)号：US10677725B2

公开(公告)日：2020-06-09

申请号：US16080187

申请日：2017-03-01

Applicant: ELTEK S.p.A.

Inventor： Marco Pizzi ,  Piercarlo Merlano ,  Fabio Cavalli ,  Mauro Zorzetto

IPC: G01N21/43 ,  G01F23/30 ,  G01N21/552 ,  G01F23/00 ,  G01K1/14 ,  G01K13/02 ,  F01N11/00

Abstract: A sensor device for a container of a liquid substance comprises a body with a housing portion having a closing structure, the body having an inner surface and an outer surface. The housing portion is pre-arranged for assembly on the container, in such a way that a portion of the outer surface of the body faces the inside of the container to be in contact with the liquid substance, and the inner surface of the body is isolated from the inside of the container. Associated to the body is a first arrangement for detection of the level of the substance.Associated to the body of the device is a second arrangement for detection of a characteristic of the liquid substance, which comprises an emitter and a receiver of a given optical radiation. A first portion of the body of the device is made of a material designed for propagation of the given optical radiation, the emitter and the receiver being optically coupled to the inner surface of the body at the first portion. The first portion of the body of the device is shaped to contribute to propagation of the given optical radiation from the emitter to the receiver, in such a way that the given optical radiation is propagated through the first portion of the body of the device towards the receiver, at an angle and/or with an intensity that are/is variable as a function of the characteristic of the liquid substance.