The purpose of ASEA’s trip to the Southern Pacific Railroad was to introduce ASEA’s classification yard equipment to the railroad. ASEA’s equipment consists of: Hydraulic retarders used in a quasi-continuous control design, and Cable wagon-hauling system for classification tracks. The cable wagon-hauling system is used primarily in yards with conventional clasp type retarders. It was not discussed extensively at the meeting. However, the spiral, hydraulic retarder was discussed at length. The paper compared ASEA’s design to the Dowty retarder with pros and cons; and describes in detail the technical implementation requirements for the ASEA screw retarder system.
The first step to improving the performance of retarder control algorithms is to conduct an exhaustive study of existing algorithms. Retarder control ...
The literature reviewed to date has revealed three basic speed control systems in use in foreign classification yards. These are: Clasp retarders usin...
Links with this icon indicate that you are leaving a Bureau of Transportation
Statistics (BTS)/National Transportation Library (NTL)
Web-based service.
Thank you for visiting.
You are about to access a non-government link outside of
the U.S. Department of Transportation's National
Transportation Library.
Please note: While links to Web sites outside of DOT are
offered for your convenience, when you exit DOT Web sites,
Federal privacy policy and Section 508 of the Rehabilitation
Act (accessibility requirements) no longer apply. In
addition, DOT does not attest to the accuracy, relevance,
timeliness or completeness of information provided by linked
sites. Linking to a Web site does not constitute an
endorsement by DOT of the sponsors of the site or the
products presented on the site. For more information, please
view DOT's Web site linking policy.
To get back to the page you were previously viewing, click
your Cancel button.
United States Department of Transportation
[PDF-448.48 KB]
