公开(公告)号：US20220194437A1

公开(公告)日：2022-06-23

申请号：US17558027

申请日：2021-12-21

申请人： RHT Rail Haul Technologies Corp.

发明人： Frank Wegner Donnelly ,  Tony Maciulewicz ,  John D. Watson

IPC分类号： B61C3/00 ,  B61L25/02 ,  B61C17/12 ,  B61C9/50

摘要： The use of short consists of powered and unpowered freight cars for moving cargo from its source to transfer facilities is described. The use of short consists of powered and unpowered freight cars can enable the efficient operation of unit trains. Single self-powered rail cars or short consists (up to about 25 cars) can overcome a number of problems associated with long unit trains such as dynamic instabilities, inability to stop quickly if needed and long headway time required between trains. A system of feeder trains (aggregators) to facilitate keeping unit trains in more or less constant motion is described. The use of gearing and shafts for power transmission from traction motors installed on various types of freight cars using the structure of the existing freight car truck is also described.