Cummins Inc. is a Fortune 500 corporation that designs, manufactures, and distributes engines, filtration, and power generation products. Cummins also services engines and related equipment, including fuel systems, controls, air handling, filtration, emission control and electrical power generation systems. Headquartered in Columbus, Indiana, United States, Cummins sells in approximately 190 countries and territories through a network of more than 600 company-owned and independent distributors and approximately 6,000 dealers. Cummins reported net income of $1.64 billion on sales of $17.3 billion in 2012. Wikipedia.
Cummins | Date: 2017-02-08
The invention relates to a reductant heating system. The system comprises a coolanfi line comprising a first portion positionable in heat exchanging communication with reductant in a reductant tank and a second portion positionable in heat exchanging communication with reductant in a reductant line, the reductant line configured to receive reductant from the reductant tank, a flow regulation device coupled to the coolant line and configured to regulate the flow rate of coolant entering the first portion of the coolant line, and a controller communicable in signal transmitting communication with the flow regulation device to vary the flow rate of coolant through the first portion of the coolant line to achieve a desired temperature of coolant in the second portion of the coolant line.
Cummins | Date: 2017-03-15
An aftertreatment system comprises a first SCR system, a second SCR system positioned downstream of the SCR system and a reductant storage tank. At least one reductant insertion assembly is fluidly coupled to the reductant storage tank. The at least one reductant insertion assembly is also fluidly coupled to the first SCR system and the SCR system. A controller is communicatively coupled to the reductant insertion assembly. The controller is configured to instruct the reductant insertion assembly to asynchronously insert the reductant into the first SCR system and the second SCR system.
Cummins | Date: 2017-02-22
A system includes an engine and a controller in operative communication with the engine. Engine operating conditions are determined. At least one engine operating condition is determined. Based on the determined at least one engine operating condition, brake-specific fuel consumption is determined for each of a plurality of candidate cylinder pressures. A target cylinder pressure is selected from the plurality of candidate cylinder pressures. The target cylinder pressure is the candidate cylinder pressure at which brake-specific fuel consumption is minimized. Intake valve timing of the engine is modulated so as to achieve the target cylinder pressure.
Cummins | Date: 2017-01-18
An adaptor (18) is disclosed for connecting a generator (12) to a prime mover (10). The adaptor comprises two separable parts (30, 32). By providing an adaptor comprising two separable parts, it may be possible for one part to be removed in order to allow access to moving parts which would otherwise be inaccessible. This may simplify the process of servicing moving parts such as a coupling or bearings.
Cummins | Date: 2017-04-05
A system includes an internal combustion engine producing an exhaust gas, an aftertreatment system receiving the exhaust gas, the aftertreatment system including a particulate filter positioned upstream of an SCR catalyst component, and a urea injector operatively coupled to the aftertreatment system at a position upstream of the SCR catalyst component. The system further includes a controller that interprets an exhaust temperature value, an ambient temperature value, and a urea injection amount. The controller determines a urea deposit amount in response to the exhaust temperature value, the ambient temperature value, and the urea injection amount, and initiates a desoot regeneration event in response to the urea deposit amount. The desoot regeneration event includes operating the engine at a urea decomposition exhaust temperature.
Cummins | Date: 2017-04-19
An exhaust aftertreatment system, comprising a first exhaust aftertreatment component; a second exhaust aftertreatment component in fluid communication with the first exhaust aftertreatment component, the first and second exhaust aftertreatment components arranged in a switch-back configuration; a first sensor table coupled to a housing of the first exhaust aftertreatment component via a remote mounting bracket, wherein the remote mounting bracket is configured to provide a space between the first sensor table and the housing, and a first sensor assembly mounted to the first sensor table.
Cummins | Date: 2016-06-24
Diagnosis system, method, and apparatus for a starting system are discloses herein. The method comprises receiving a run condition parameter for a vehicle, receiving a fueling system engagement parameter and an associated time threshold for the fueling system engagement parameter, and receiving an ignition command for turning an engine of the vehicle from an off state to an on state. If the run condition parameter is met, the method receives time data indicative of a time duration from reception of the ignition command to reach or substantially reach the fueling system engagement parameter, compare the time duration to the associated time threshold, and diagnose a starting system of the vehicle based on the comparison.
Cummins | Date: 2016-09-30
Systems, apparatuses, and methods disclosed provide for service assessment. The method includes receiving at least one fault code of an engine control unit (ECU); determining at least one root cause based on the at least one fault code of the ECU; determining an estimated labor time for fixing the at least one root cause; and outputting the at least one root cause and the estimated labor time to a display.
Cummins | Date: 2016-03-31
A valve solenoid includes a coil pot having an internal volume. A coil is positioned concentrically within the internal volume. An outer tube is positioned concentrically within the coil. A pole core is positioned concentrically within the outer tube. An armature includes an armature first portion positioned distal from the pole core and an armature second portion at least a portion of which is positioned concentrically within the outer tube. An inner tube is positioned concentrically within the channel defined by the armature such that the at least a portion of the armature second portion is positioned concentrically between the outer tube and the inner tube. An armature pin is fixedly coupled to the armature. A biasing member is positioned within the channel. A first end of the biasing member is coupled to the armature pin and a second end of the biasing member coupled to the pole core.
Cummins | Date: 2016-09-16
Exhaust aftertreatment assemblies and methods of manufacturing and operating exhaust aftertreatment assemblies. The exhaust aftertreatment assembly includes a reductant delivery device, a reductant source fluidly coupled to the reductant delivery device, a mixing chamber positioned between the reductant delivery device and the reductant source and thereby fluidly coupling the reductant source to the reductant delivery device, and a compressed air source fluidly coupled to the mixing chamber upstream of the mixing chamber with respect to the reductant delivery device. The compressed air source provides compressed air to mix with reductant in the mixing chamber.