Method and system for increasing the track-to-wheel friction of

Details Method and system for increasing the track-to-wheel friction of Method and system for increasing the track-to-wheel friction of

1978-09-07

1980-10-28

Love, John J.

Railways

Track clearers

239174, 291 1, B61F 1900

Patent

active

042300452

ABSTRACT:
A method and system for maximizing the track-to-wheel adhesion and minimizing the rolling resistance of the wheels of a locomotive is disclosed. A low volume of high pressure water, alone or in admixture with wetting agents, cleaning agents, etc. is sprayed onto the wheel contact surface of the rail forward of the driven wheels of the locomotives at very high pressures, i.e. 4,000 to 6,000 psi. followed immediately by ejecting air or other gas under pressure onto the wheel contact surface of the rail to dry the contact surface. The combination of high pressure water and air provides effective cleaning of the contact surfaces of the rail, thereby (1) increasing the friction between the driven wheels and the track; (2) lessening the draft effort of the locomotive driving the wheels of the train; (3) minimizing the wearing of both rails and the wheel surfaces by eliminating the use of abrasive materials, such as sand; (4) improving track condition; (5) increasing train braking capability; (6) lessening contamination of rail bed ballast; and (7) lessening energy consumption for movement of the train.

REFERENCES:
patent: 77602 (1868-05-01), Floyd
patent: 490269 (1893-01-01), Chisholm
patent: 893878 (1908-07-01), Shires
patent: 1824067 (1931-09-01), Becker
patent: 2597719 (1952-05-01), Foster
patent: 2890970 (1959-06-01), Allen
patent: 3659787 (1972-05-01), Ito
"Adhesion Without Sound," Railway Age, 11/1955.

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