Marten H Dane

2014001, Jan 16, 2014

Jul 16, 2012

13/550041

Marten H. DANE - Columbus IN,

CUMMINS INTELLECTUAL PROPERTY, INC. - Minneapolis MN

F02G 5/02
F01N 5/02

60615, 60616, 60618, 60320, 60273

A waste heat recovery (WHR) system operates in a reverse mode, permitting using the WHR system to transfer heat to the exhaust gas of an internal combustion engine. In another configuration, a WHR system may operate in two modes. The first mode removes heat from exhaust gas of an engine to perform useful work. The second mode transfers heat to the exhaust gas. The benefit of this flexible system is that a WHR system is adaptable to rapidly heat exhaust gas at startup and during other conditions where the temperature of the exhaust gas is less than a predetermined operating range. Because of the ability to rapidly warm engine exhaust gas, an exhaust gas receiving system, such as an EGR or an aftertreatment system, may function to reduce the emissions of the engine more quickly. Because this system is reversible, it retains the capability of a conventional WHR system.

2014002, Jan 23, 2014

Jul 23, 2012

13/555463

Rajkumar Subramanian - Columbus IN,
Madhuri Gandikota - Columbus IN,
Marten H. Dane - Columbus IN,
Samuel C. Geckler - Columbus IN,
Sudhanshu Talwar - Columbus IN,

F02M 25/07
F02B 37/00

606052, 12356811, 12356812

Systems, methods and techniques for exhaust gas recirculation are provided. The system includes mixing exhaust flow from at least one cylinder of an engine with air in an air intake system prior to combustion. The exhaust flow from the at least one cylinder is accumulated prior to mixing and distributed into the intake air system in a controlled manner.

2011021, Sep 15, 2011

Mar 10, 2011

13/045208

Aleksey Yezerets - Columbus IN,
Timothy R. Frazier - Columbus IN,
Marten H. Dane - Greenwood IN,
Samuel C. Geckler - Columbus IN,
Govindarajan Kothandaraman - Columbus IN,

F01N 3/035
F01N 3/18

60274, 60285

A system includes an internal combustion ignition engine with an exhaust gas flow, a particulate filter in the exhaust gas flow, a NOreduction catalyst in the exhaust gas flow downstream of the particulate filter, a first oxygen sensor coupled to the exhaust gas flow downstream of the NOreduction catalyst, and a second oxygen sensor coupled to the exhaust gas flow between the particulate filter and the NOreduction catalyst. A controller includes an exhaust conditions module that interprets a first oxygen signal from the first oxygen sensor and a second oxygen signal from the second oxygen sensor and a combustion control module that commands a high engine-out air-fuel ratio when the first oxygen signal indicates a low oxygen content and commands a low engine-out air-fuel ratio when the first oxygen signal indicates a high oxygen content.