Pressure vessel for a motor vehicle

Patent metadata

Field	Value
Publication number	US-9821653-B2
Application number	US-201615071633-A
Country	US
Kind code	B2
Filing date	Mar 16, 2016
Priority date	Mar 17, 2015
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

A pressure vessel is provided for a motor vehicle, having a fastening apparatus. The fastening apparatus is designed to connect the pressure vessel to a body of the motor vehicle. The fastening apparatus has at least two connecting pins and at least two bearings. In each case, one connecting pin is connected to a bearing at a connecting point. The connecting pins and/or the bearings are each connected to the pressure vessel in a pressure vessel attachment region and extend away from the outer surface of the pressure vessel. The pressure vessel attachment regions exhibit in each case an expansion. The connecting pin and the bearing are, in the connecting point, at least regionally shaped and arranged such that the expansion is kinetically guided with only one translational degree of freedom by way of a movement of the bearing and/or of the connecting pin.

First claim

What is claimed is:

1. A pressure vessel for a motor vehicle, comprising:
a fastening apparatus configured to connect the pressure vessel to a body of the motor vehicle, the fastening apparatus comprising at least two connecting pins and at least two bearings, wherein
in each case, one connecting pin is connected to a respective bearing at a connecting point,
the pressure vessel has pressure vessel attachment regions, each region having either a connecting pin or a bearing connected to the pressure vessel and extending away from an outer surface of the pressure vessel, and
the pressure vessel attachment regions exhibit, in each case, an expansion, and the connecting pin and the bearing at the connecting point are at least regionally shaped and arranged to kinetically guide the expansion of the pressure vessel attachment region in only one translational degree of freedom via movement of the bearing and/or the connecting pin.

2. The pressure vessel according to claim 1 , wherein in the pressure vessel attachment regions the pressure vessel has an expansion direction parallel to longitudinal axes of the connecting pins and/or the bearings.

3. The pressure vessel according to claim 2 , wherein the longitudinal axes of the at least two connecting pins and/or the at least two bearings are arranged at an angle with respect to one another.

4. The pressure vessel according to claim 1 , wherein the longitudinal axes of the at least two connecting pins and/or the at least two bearings are arranged at an angle with respect to one another.

5. The pressure vessel according to claim 2 , wherein the longitudinal axes of the at least two connecting pins and/or the at least two bearings are arranged at an angle with respect to one another in a range between 2° and 178°.

6. The pressure vessel according to claim 2 , wherein the longitudinal axes of the at least two connecting pins and/or the at least two bearings are arranged at an angle with respect to one another in a range between 5° and 90°.

7. The pressure vessel according to claim 2 , wherein the longitudinal axes of the at least two connecting pins and/or the at least two bearings are arranged at an angle with respect to one another in a range between 10° and 50°.

8. The pressure vessel according to claim 1 , wherein longitudinal axes of the at least two fastening pins and/or of the at least two bearing are arranged so as to be angled with respect to a longitudinal axis of the pressure vessel.

9. The pressure vessel according to claim 1 , wherein longitudinal axes of the at least two connecting pins are arranged at an angle with respect to a longitudinal axis of the pressure vessel, which angle lies between 2° and 178°.

10. The pressure vessel according to claim 1 , wherein longitudinal axis of the at least two connecting pins are arranged at an angle with respect to a longitudinal axis of the pressure vessel, which angle lies between 5° and 90°.

11. The pressure vessel according to claim 1 , wherein longitudinal axis of the at least two connecting pins are arranged at an angle with respect to a longitudinal axis of the pressure vessel, which angle lies between 10° and 50°.

12. The pressure vessel according to claim 1 , wherein the at least two fastening pins are guided, in each case, in a respective bearing.

13. The pressure vessel according to claim 12 , wherein the at least two bearings are ball joint bearings.

14. The pressure vessel according to claim 1 , wherein one fastening apparatus is provided on each side of the pressure vessel.

15. The pressure vessel according to claim 1 , wherein:
the fastening apparatus comprises four connecting pins and four associated bearings, and
the four connecting pins and the four associated bearing are arranged concentrically around a boss of the pressure vessel.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Stahl Hans-Ulrich

Classifications

• B60K15/07 Primary

  of gas tanks · CPC title

• B60Y2306/01

  Reducing damages in case of crash, e.g. by improving battery protection · CPC title