Piping, Drive Train Unit Comprising Such a Piping, and Installation Method

Patent metadata

Field	Value
Publication number	US-2021001704-A1
Application number	US-202016918393-A
Country	US
Kind code	A1
Filing date	Jul 1, 2020
Priority date	Jul 2, 2019
Publication date	Jan 7, 2021
Grant date	—

Abstract

A piping (1) for guiding a fluid within a drive train unit (G) of a motor vehicle includes a pipe (R). A stop (R1A) is formed at a first end (R1) of the piping (1). A sealing element (R2D) is provided at a second end (R2) of the piping (1). The sealing element (R2D) acts as an axial seal. In order to improve a sealing effect of the sealing element (R2D), the piping (1) is loaded along an extension direction of the piping (1). A drive train unit (G) for a motor vehicle including such a piping (1) and a method for installing such a piping (1) into such a drive train unit (G) is also provided.

First claim

1 - 14 : (canceled)

15 . A piping ( 1 ) for guiding a fluid within a drive train unit (G) of a motor vehicle, comprising;
a pipe (R) with a stop (R 1 A) formed at a first end (R 1 ) of the piping ( 1 ); and a sealing element (R 2 D) provided at a second end (R 2 ) of the piping ( 1 ), wherein the sealing element (R 2 D) acts as an axial seal, and the piping ( 1 ) is loaded along an extension direction of the piping ( 1 ) in order to improve a sealing effect of the sealing element (R 2 D).

16 . The piping ( 1 ) of claim 15 , wherein the sealing element (R 2 D) is secured at the second end (R 2 ) of the piping ( 1 ) with a seal holding element (R 2 H), and the seal holding element (R 2 H) is secured at the pipe (R).

17 . The piping ( 1 ) of claim 16 , wherein the sealing element (R 2 D) is secured at the seal holding element (R 2 H) in a form-locking manner.

18 . The piping ( 1 ) of claim 16 , wherein a radially outwardly directed groove (R 2 HN) is provided at an inner diameter of the seal holding element (R 2 H), radially outwardly directed protuberances (R 2 DN) are provided at the sealing element (R 2 D), and the protuberances (R 2 DN) and the groove (R 2 HN) cooperate in order to secure the sealing element (R 2 D) at the seal holding element (R 2 H).

19 . The piping ( 1 ) of claim 15 , wherein the pipe (R) is a metal pipe.

20 . The piping ( 1 ) of claim 15 , wherein the stop (R 1 A) is formed directly from material of the pipe (R).

21 . The piping ( 1 ) of claim 15 , wherein the stop (R 1 A) is formed by a local belling of the pipe (R).

22 . The piping ( 1 ) of claim 15 , wherein the pipe (R) is bent.

23 . A drive train unit (G) for a motor vehicle, comprising the piping ( 1 ) of claim 15 for guiding a fluid within a housing (GG) of the drive train unit (G).

24 . The drive train unit (G) of claim 23 , wherein the drive train unit (G) is formed by an internal combustion engine, a hybrid module, a transmission, or an electrical axle drive.

25 . The drive train unit (G) of claim 23 , wherein the drive train unit (G) is formed by a transmission, and the piping ( 1 ) is arranged at least partially between the housing (GG) and a torque converter (TC) of the transmission.

26 . The drive train unit (G) of claim 23 , wherein the piping ( 1 ) is configured for guiding fluid starting from the housing (GG) or a housing plate (ZP) connected to the housing (GG) to a component (ST) of an electric machine (EM) arranged within the housing (GG).

27 . The drive train unit (G) of claim 26 , wherein the component (ST) of the electric machine (EM) is a stator carrier (ST).

28 . A method for installing the piping ( 1 ) in the drive train unit (G) of claim 23 , comprising:
securing an end of the piping ( 1 ) on the housing side with respect to the housing (GG) by inserting the first end (R 1 ) of the piping ( 1 ) into an opening (ZP 1 ) on the housing side until the stop (R 1 A) at the first end (R 1 ) of the pipe (R) acts against a stop surface on the housing side; inserting a stator carrier (ST) of an electric machine (EM) into the housing (GG) such that a fluid interface (SK) of the stator carrier (ST) contacts the sealing element (R 2 D); and continuing the insertion movement of the stator carrier (ST) such that the piping ( 1 ) is elastically deformed.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Eschenbeck Linus
• Debernitz Leschek
• Knörle-Philipp Andreas
• Baumann Julia

Classifications

• F16J15/062

  characterised by the geometry of the seat · CPC title

• F16J15/104

  characterised by structure · CPC title

• H02K7/116

  with gears · CPC title

• H02K1/20 Primary

  with channels or ducts for flow of cooling medium · CPC title

• B60K6/36 Primary

  characterised by the transmission gearings · CPC title