Abstract: A method of reducing cold startup time of a genset includes providing a lubricant to the genset at predetermined time intervals before a genset startup. The lubricant is heated to a predetermined lubricant temperature using an external heating system. A high temperature coolant of the genset is heated to greater than a predetermined high temperature coolant temperature. The speed of the engine is ramped to a target speed continuously without pausing at a speed lower than the target speed. Genset electrical parameters of the genset are synchronized to utility grid or load electrical parameters of the utility grid or load. The genset is electrically coupled to the utility grid or load such that the synchronizing and electrically coupling are performed within a predetermined synchronization time. A fueling rate and a spark timing is adjusted based on a power being produced by the genset.
Type:
Application
Filed:
September 19, 2016
Publication date:
September 6, 2018
Applicant:
Cummins Power Generation Limited
Inventors:
Ikenna Oguguo, Philippe Goesel, Dafydd Roberts, Sean Curley, James Meadows
Abstract: A generator set comprises an engine including a crankshaft rotatable in a first direction about a longitudinal axis of the generator set, and a generator including a generator shaft. A gearbox is positioned between the engine and the generator, all mounted on a chassis. The gearbox couples the crankshaft to the generator shaft. The gearbox includes a gearbox housing having a first end and a second end. The first end is coupled to an engine first end and the second end is coupled to a generator first end. The gearbox also includes a gear set including a plurality of gears, a first gear shaft coupled to a crank shaft first end, and a second gear shaft coupled to a generator shaft first end. The crankshaft and at least a portion of the plurality of gears, and the generator shaft are axially aligned along the longitudinal axis of the generator set.
Type:
Application
Filed:
November 18, 2016
Publication date:
May 24, 2018
Applicant:
Cummins Power Generation Limited
Inventors:
Paul D. Johnson, Kent A. Lobsiger, Sze Kwan Cheah, Tejaskumar Rajendrakumar Amin, Peter Andrew Goleczka
Abstract: A genset chassis for mounting a genset includes an engine and generator thereon includes a pair of inner beams and an outer beam coupled to an outer sidewall of a corresponding inner beam. The outer beams are vertically offset from the corresponding inner beam such that at least a portion of the outer beams is higher than a corresponding inner beam. The outer beams are structured to be positioned on mounting members positioned on a surface so that a first distance between the at least a pair of inner beams and the surface is less than a second distance between the plurality of outer beams and the surface. The inner beams are structured to mount at least a portion of the genset thereon such that a part of the at least a portion of the genset is lower than the plurality of outer beams.
Type:
Application
Filed:
March 2, 2016
Publication date:
September 7, 2017
Applicant:
Cummins Power Generation Limited
Inventors:
Peter Goleczka, Tejaskumar Amin, Kent A. Lobsiger, Ramesh Timande
Abstract: A generator set housing has a skeletal frame with corners which conform to ISO standards. The frame members are welded together and are held in position during welding by tanging and wedging. This allows the frame to be self-squaring which eliminates the need for the use of jigs to hold the frame the together during welding. The skeletal frame is covered by panels which provide access to the generator set for service and repair. The panels are held in place by self drill and tap screws which are inserted from within the housing and would also be released from within the housing in order to enable removal of the panels. Folded sections are used throughout the housing. The dimensional accuracy is much greater due to the use of laser cutting to form the blanks from which the folded sections, including the tongues, which are integral, and the mating slots, were produced.