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US 10,086,852 B2Granted
End-of car energy management system for railcars
AssigneeCanadian National Railway Company
InventorDarrell Iler
Life of this patent
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Abstract
An end-of-car system for railcars is provided comprising an asymmetric draft gear mechanism offering shock absorption to a railcar when the latter is subjected to buff or draft forces. The end-of-car system may be retrofitted to railcars having a different type of shock absorption system.
Claims10
An end of railcar energy management system, comprising:
- (a) a first draft gear unit;
- (b) a second draft gear unit substantially identical to the first draft gear unit, each of the first and second draft gear units including:
- a. a casing;
- b. a friction clutch retractable within the housing to produce compression of the draft gear unit;
- (c) the first and the second draft gear units being mounted serially, such that a buff force applied at the end of railcar energy management system produces compression of the first draft gear unit and of the second draft gear unit;
- (d) a follower block mounted between the first and the second draft gear units, the follower block operable to transmit the buff force applied to the end of railcar energy management system between the first and the second draft gear units;
- (e) a pulling bar extending between the follower block and the first draft gear unit, the pulling bar configured to induce compression of the first draft gear unit when a draft force is applied to the end of railcar energy management system.
4 more elements
Dependencies are inferred from the claim text.