Patent ID: 9228461
Filing Date: 2016-01-05
CPC Classification: F01N,Y02T,Y10T

Claim Text:
1. A bi-directional tractor exhaust system, comprising: a downwardly directed exhaust pipe configured to provide exhaust flow exiting below an internal combustion engine connected to an upwardly directed exhaust pipe configured to provide exhaust flow exiting above the internal combustion engine; an exhaust pipe valve mounted in the downwardly directed exhaust pipe; and an actuator connected to the exhaust pipe valve and moveable between a first position opening the exhaust pipe valve to direct exhaust through the downwardly directed exhaust pipe, and a second position closing the exhaust pipe valve to direct exhaust through the upwardly directed exhaust pipe, wherein the downwardly directed exhaust pipe and upwardly directed exhaust pipe are connected together adjacent an outlet of a diesel particulate filter; and a switch connected to the actuator and to a controller that prevents initiation of regeneration of the diesel particulate filter unless the switch indicates the exhaust pipe valve is closed.