US 11,788,486 B2
Module for detecting a leakage of an arrangement
Ralf Heinrich, Schwegenheim (DE); David Daenhardt, Mannheim (DE); Christiane Spilger, Fürth (DE); Peter Lexa, Einhausen (DE); and Klaus Bickel, Hammelbach (DE)
Assigned to Eagle Actuator Components GmbH & Co. KG, Heppenheim (DE)
Filed by Eagle Actuator Components GmbH & Co. KG, Heppenheim (DE)
Filed on Oct. 13, 2022, as Appl. No. 17/965,595.
Claims priority of application No. 102021128688.3 (DE), filed on Nov. 4, 2021.
Prior Publication US 2023/0139015 A1, May 4, 2023
Int. Cl. F02D 41/22 (2006.01); F02M 25/08 (2006.01); G01M 3/32 (2006.01)
CPC F02D 41/22 (2013.01) [F02M 25/089 (2013.01); F02M 25/0818 (2013.01); G01M 3/3236 (2013.01); B60Y 2306/15 (2013.01); F02D 2041/225 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A module for detecting a leakage, comprising
a pressure sensor; and
a pump for generating pressure; wherein
the module has a sealable reference volume which can be connected in terms of flow by means of a first valve to a tank connection and which can be disconnected therefrom in a flow-tight manner, wherein the pressure inside the reference volume can be detected by the pressure sensor, wherein pressure can be generated inside the reference volume by means of the pump and wherein the reference volume can be connected in a flow-conducting manner by means of a shut-off valve via a reference aperture with a defined flow cross section to an atmosphere outlet and can be disconnected therefrom,
and wherein:
in a first position of the first valve, the tank connection is connected via an atmosphere outlet to the atmosphere and disconnected from the reference volume, and
in a second position of the first valve, the tank connection is connected to the reference volume and disconnected from the atmosphere outlet.