Invention Grant
- Patent Title: Leveling railway vehicle and related systems and methods
- Patent Title (中): 调平铁路车辆及相关系统及方法
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Application No.: US14000472Application Date: 2012-02-21
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Publication No.: US09315203B2Publication Date: 2016-04-19
- Inventor: James Franks , Adam W. Kohler
- Applicant: James Franks , Adam W. Kohler
- Applicant Address: US PA Wilmerding
- Assignee: Wabtec Holding Corp.
- Current Assignee: Wabtec Holding Corp.
- Current Assignee Address: US PA Wilmerding
- Agency: MacCord Mason PLLC
- International Application: PCT/US2012/025863 WO 20120221
- International Announcement: WO2012/115927 WO 20120830
- Main IPC: B61F5/00
- IPC: B61F5/00 ; B61F5/02 ; B61F5/14 ; F16F1/12 ; B61B1/02 ; B61L99/00

Abstract:
Leveling railway vehicles, leveling secondary suspension systems, lift-systems for suspension systems, and other related systems and methods are shown and described. In one example, a railway vehicle includes a superstructure, a bogey, and a leveling secondary suspension system. The leveling suspension system includes at least one spring positioned between the superstructure and the bogey, and a secondary suspension-mounting lift system (SMLS) interfaced with coil spring. The SMLS includes a spring-mount (SM) and a piston assembly. In operation, pressurized hydraulic fluid acts on the piston and lifts the superstructure, thereby allowing the superstructure's access to be raised to a desired height, e.g. a platform height.
Public/Granted literature
- US20150021445A1 LEVELING RAILWAY VEHICLE AND RELATED SYSTEMS AND METHODS Public/Granted day:2015-01-22
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