Railways – Car yard – Track brake
Patent
1986-05-02
1988-08-30
Zugel, Francis K.
Railways
Car yard
Track brake
104 261, B61B 100
Patent
active
047668156
ABSTRACT:
This invention relates to the design of marshalling yard with up-grade speed control system. The principal difference between this yard and the conventional marshalling yard with down-grade only profile is described hereunder. Unlike the already known yard in which many speed control devices are installed on a down-grade to consume excess energy of cuts, the yard in the invention has hump height designed by taking operating conditions of moderate runners as a base and is provided with at least one up-grade speed control unit consisting of one up-grade section and a necessary number of boosters and retarders on the down-grade profile. This up-grade control unit could convert excess energy of cuts into potential energy. The invention could raise hump operating capacity of marshalling yard at a considerably reduced cost.
REFERENCES:
patent: 2621035 (1952-12-01), Marden
patent: 2716547 (1955-08-01), Thurston
patent: 2863991 (1958-12-01), Mishelevich
patent: 3172490 (1965-03-01), Raskin
Martin Lang and Josef Uthoff, Modern Marshalling Yard Developments, from Railway Technical Review, 1973.
M. S. Rao, Switch Back Hump-a New Marshalling Tool, from Rail International, 4/1976.
Chongben Zhong
Zhengli Xu
Cranmer Laurie K.
TDJ System Research Center of Haerbin Railway Bureau
Zugel Francis K.
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