US2026001576A1PendingUtilityA1

Rail Vehicle with Pneumatic Suspension

Assignee: SIEMENS MOBILITY AUSTRIA GMBHPriority: May 25, 2022Filed: May 24, 2023Published: Jan 1, 2026
Est. expiryMay 25, 2042(~15.8 yrs left)· nominal 20-yr term from priority
B61F 1/08B61F 5/10B61F 1/12
45
PatentIndex Score
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Claims

Abstract

A rail vehicle with a pneumatic suspension includes a car body and at least one chassis that is rotatably supported relative to the car body, wherein at least one pneumatic spring is arranged between the car body and the chassis, and each pneumatic spring is paired with an auxiliary air tank that has a volume that is connected to the volume of the pneumatic spring, where the auxiliary air tank is arranged above the pneumatic spring and extends in a recess in the car body.

Claims

exact text as granted — not AI-modified
1 .- 6 . (canceled) 
     
     
         7 . A rail vehicle with pneumatic suspension, comprising:
 a car body;   at least one chassis rotatable mounted relative to the car body; and   at least one pneumatic spring arranged between the car body and the at least one chassis;   wherein each pneumatic spring is paired with an auxiliary air tank having a volume which is connected to a volume of the pneumatic spring; and   wherein the auxiliary air tank is arranged above the pneumatic spring and extends in a recess in the car body.   
     
     
         8 . The rail vehicle with pneumatic suspension as claimed in  claim 7 , wherein the recess is formed in a main cross member of the car body. 
     
     
         9 . The rail vehicle with pneumatic suspension as claimed in  claim 8 , wherein the main cross member is produced from a plurality of steel components which are welded together. 
     
     
         10 . The rail vehicle with pneumatic suspension as claimed in  claim 7 , wherein the at least one auxiliary air tank is made of light metal via a casting process. 
     
     
         11 . The rail vehicle with pneumatic suspension as claimed in  claim 8 , wherein the at least one auxiliary air tank is made of light metal via a casting process. 
     
     
         12 . The rail vehicle with pneumatic suspension as claimed in  claim 9 , wherein the at least one auxiliary air tank is made of light metal via a casting process. 
     
     
         13 . The rail vehicle with pneumatic suspension as claimed in  claim 10 , wherein the auxiliary air tank comprises a hollow shape having the volume which is connected to the volume of the pneumatic spring. 
     
     
         14 . The rail vehicle with pneumatic suspension as claimed in  claim 13 , wherein the hollow shape extends annularly around the pneumatic spring and in a substantially cuboid shape in a direction of a center of the car body.

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