[CHAUMET, Pascal, MARTH, Detlef, JAHRSTORFER, Erich, IMMENDOERFER, Ingo, HAAN, Philip De, SCHOENER, Bruno] Postfach 30 02 20 70442 Stuttgart;Rue Du Colonel Andre 8 F-67500 Hagenau;Karlsbader Str 49/1 70839 Gerlingen;Oberer Anger 7 85659 Forstern;Eckenerstr. 13 71732 Tamm;Geschwister-Scholl-Ring 5 82110 Germering;Bahnstrasse 5 64846 Gross-zimmern Electric fuel pumps are already known with a pump housing and a ground terminal, which is provided on a terminal cover, for making contact with an electrical ground, wherein the pump housing and the ground terminal are connected to one another via a ground connection, which has a first contact section for making contact with the pump housing and a second contact section for making contact with the ground terminal. The first contact section is provided on the outer circumference of a terminal cover and, after installation, is pressed with a contact pressure against the inner face of the pump housing. Since the inner face of the pump housing has increasingly been provided with an electrically insulating anticorrosion coating, however, when the terminal cover is pressed into the pump housing, touching contact with the pump housing does take place which is usually also electrically conductive, but as a result of the electrically insulating coating has a high electrical resistance. In the case of the conveying assembly according to the invention, the impedance of the contact-making is reduced. The invention provides that the first contact section (16) is designed to have sharp edges in such a way that, when it is pushed into the pump housing (4), it passes locally through an electrically insulating layer formed on the pump housing (4).

[JAHRSTORFER, Erich, PLANTIER, Eric, KNESCH, Holger, WUENSCH, Thomas, KUEHN, Michael, WAHL, Oliver, IMMENDOERFER, Ingo, DITTMANN, Reinhard, MAI, Johann] Postfach 30 02 2070442 Stuttgart The invention relates to a fuel pump (1) comprising a metal, in particular hollow-cylindrical, pump housing (4) in which a pump element (2) for pumping fuel and an electric motor (3) for driving the pump element (2) are provided, wherein the electric motor (3) has a stator (7) with a stator winding (17) and a rotor (16) mechanically coupled to the pump element (2), wherein the pump element (2) is rotatably mounted about a rotor axis (100) in a working chamber (20), which is formed between an intermediate housing (5) and a suction cover (18), wherein a motor chamber (15) for receiving the electric motor (3) is formed between a connection cover (21) and the intermediate housing (5), wherein the pump housing (4) has a circumferential first step (4a) which the stator (7) contacts and a circumferential second step (4b) which the intermediate housing (5) contacts, wherein the stator (7) and the intermediate housing (5) are pressed into the pump housing (4) and wherein the stator (7) has a stator lamination stack (10) and an overmoulding (11) for the electrical insulation of the stator winding (17) relative to the stator lamination stack (10), characterised in that, at the end section facing the second step (4b) of the pump housing (4), the stator lamination stack (10) has a step shoulder (12) which is pressed directly into the pump housing (4) and, in particular, which has undergone a turning process.

[PLANTIER ERIC, JAHRSTORFER ERICH, DE HAAN PHILIP, GRINGER JENS, WEBER PETER, SILVA DANILO, DITTMANN REINHARD, FAVERO CELSOEDUARDO F] DE

[Pascal Chaumet, Detlef Marth, Erich Jahrstorfer, Ingo Immendoerfer, Philip De Haan, Bruno Schoener] DE Stuttgart Electric fuel pumps are already known with a pump housing and a ground terminal, which is provided on a terminal cover, for making contact with an electrical ground, in which the pump housing and the ground terminal are connected to one another via a ground connection, which has a first contact section for making contact with the pump housing and a second contact section for making contact with the ground terminal. The first contact section is provided on the outer circumference of a terminal cover and, after installation, is pressed with a contact pressure against the inner face of the pump housing. Since the inner face of the pump housing has increasingly been provided with an electrically insulating anticorrosion coating, however, when the terminal cover is pressed into the pump housing, touching contact with the pump housing does take place which is usually also electrically conductive, but as a result of the electrically insulating coating has a high electrical resistance. In the case of the conveying assembly according to the invention, the impedance of the contact-making is reduced. The invention provides that the first contact section is designed to have sharp edges in such a way that, when it is pushed into the pump housing, it passes locally through an electrically insulating layer formed on the pump housing.

[MARTH DETLEF, IMMENDOERFER INGO, CHAUMET PASCAL, SCHOENER BRUNO, JAHRSTORFER ERICH, DE HAAN PHILIP] DE

[Pascal Chaumet, Detlef Marth, Erich Jahrstorfer, Ingo Immendoerfer, Bruno Schoener, Philip De HAAN] FR Hagenau Electric fuel pumps are already known with a pump housing and a ground terminal, which is provided on a terminal cover, for making contact with an electrical ground, in which the pump housing and the ground terminal are connected to one another via a ground connection, which has a first contact section for making contact with the pump housing and a second contact section for making contact with the ground terminal. The first contact section is provided on the outer circumference of a terminal cover and, after installation, is pressed with a contact pressure against the inner face of the pump housing. Since the inner face of the pump housing has increasingly been provided with an electrically insulating anticorrosion coating, however, when the terminal cover is pressed into the pump housing, touching contact with the pump housing does take place which is usually also electrically conductive, but as a result of the electrically insulating coating has a high electrical resistance. In the case of the conveying assembly according to the invention, the impedance of the contact-making is reduced. The invention provides that the first contact section is designed to have sharp edges in such a way that, when it is pushed into the pump housing, it passes locally through an electrically insulating layer formed on the pump housing.

[JAHRSTORFER ERICH, PLANTIER ERIC, KNESCH HOLGER, WUENSCH THOMAS, KUEHN MICHAEL, WAHL OLIVER, IMMENDOERFER INGO, DITTMANN REINHARD, MAI JOHANN] DE

[MARTH DETLEF, IMMENDOERFER INGO, CHAUMET PASCAL, SCHOENER BRUNO, JAHRSTORFER ERICH, DE HAAN PHILIP] DE