US 11,787,450 B2
Level control system for adjusting the level of a vehicle, in particular a rail vehicle
Ulrich Wermund, Munich (DE); Mark A. Sterrett, Hanover, PA (US); Jurgen Muhr, Munich (DE); and Eduard Nies, Puchheim (DE)
Assigned to KNORR-BREMSE SYSTEME FÜR SCHIENENFAHRZEUGE GMBH
Appl. No. 16/762,095
Filed by KNORR-BREMSE SYSTEME FÜR SCHIENENFAHRZEUGE GMBH, Munich (DE)
PCT Filed Sep. 17, 2018, PCT No. PCT/EP2018/075008
§ 371(c)(1), (2) Date May 6, 2020,
PCT Pub. No. WO2019/091635, PCT Pub. Date May 16, 2019.
Claims priority of application No. 17200882 (EP), filed on Nov. 9, 2017; and application No. 10 2018 118 466.2 (DE), filed on Jul. 31, 2018.
Prior Publication US 2020/0353958 A1, Nov. 12, 2020
Int. Cl. B61F 5/22 (2006.01)
CPC B61F 5/22 (2013.01) [B60G 2300/10 (2013.01); B60G 2500/30 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A level control system for adjusting the level of a rail vehicle, the system comprising:
at least one level control cylinder; and
one level control piston,
wherein the level control piston is at least partially movably received in the level control cylinder,
wherein the level control cylinder has a collared shoulder,
wherein the level control system has a first fixing disk which is connected to the level control piston for the purposes of transmitting a lifting movement, wherein the first fixing disk is coupled to a second fixing disk via an interconnecting spring,
wherein at least one spacer element is arranged between the collared shoulder the level control cylinder and the first fixing disk,
wherein the at least one spacer element is arranged between the collared shoulder of the level control cylinder and a car body of the rail vehicle,
wherein the at least one spacer element is a half-segment disk,
wherein the at least one spacer element is included in at least two spacer elements,
wherein the level control system has at least one bellows which is arranged between the collared shoulder of the level control cylinder and the first fixing disk and/or the collared shoulder of the level control piston,
wherein the collared shoulder of the level control cylinder and/or the collared shoulder of the level control piston has a receiving groove for receiving the at least one bellows,
wherein the at least one bellows has a metal ring and a bead configured such that the bellows is detachably and rotatably fixed in the receiving groove of the level control cylinder and/or of the level control piston.