Patent application number | Description | Published |
20090013687 | SYSTEM AND METHOD FOR MONITORING OPERATION OF A TURBOCHARGED ENGINE - A method and system for monitoring the operation of a multicylinder, turbocharged reciprocating engine with an onboard controller includes monitoring one or more operating parameters predictive of the turbocharger's output, and generating a parametric output signal corresponding to the value of the sampled operating parameter. Actual mass flow is determined with a flow detection system, and then the charge air mass flow is compared with a predetermined flow rate corresponding to the monitored operating parameter, such as turbocharger speed or turbocharger pressure ratio. A charge air condition flag is set if the actual charge air flow rate is less than a predetermined flow rate based upon the parametric output signal. | 01-15-2009 |
20090024295 | SYSTEM AND METHOD FOR REMOTELY MONITORING A TURBOCHARGED ENGINE - A method and system for remotely monitoring the operation of a multicylinder, turbocharged reciprocating engine includes monitoring one or more operating parameters predictive of the turbocharger's output, and generating a parametric output signal corresponding to the value of the sampled operating parameter. The parametric output signal is transmitted via telemetry to a remote diagnostic center, where actual mass flow is determined with a flow detection system, and then the charge air mass flow is compared with a predetermined flow rate corresponding to the monitored operating parameter, such as turbocharger speed or turbocharger pressure ratio. A condition flag is set if the actual charge air flow rate is less than a predetermined flow rate based upon the parametric output signal. | 01-22-2009 |
20130283766 | ENGINE UTILIZING A PLURALITY OF CONTROL VALVES, AND A RELATED METHOD THEREOF - In accordance with the embodiments of the present invention, an engine is disclosed. The engine includes at least one donor cylinder and at least one non-donor cylinder coupled to an intake manifold feeding intake air and an exhaust manifold. The exhaust manifold is configured to carry an engine exhaust emission from the donor cylinder and the non-donor cylinder. The engine also includes an exhaust gas recirculation manifold extending from the donor cylinder to the intake manifold for recirculating a donor cylinder exhaust emission from the donor cylinder to the donor, and non-donor cylinders via the intake manifold. The engine further includes an after-treatment system and a sensor configured to sense a temperature of the engine exhaust emission and a device configured to receive a sensing signal from the sensor and to control a parameter of the engine and a component of the engine in response to the sensing signal. | 10-31-2013 |
20140109571 | SYSTEM AND METHOD FOR CONTROLLING EXHAUST EMISSIONS AND SPECIFIC FUEL CONSUMPTION OF AN ENGIINE - A method includes combusting air within a plurality of cylinders of an internal combustion engine by injecting a fuel into the plurality of cylinders. The method further includes expanding a first portion of an exhaust gas generated from the plurality of combustion cylinders via a turbine. The method further includes controlling at least one of feeding a second portion of the exhaust gas via an exhaust channel bypassing the turbine; and recirculating a third portion of the exhaust gas to the plurality of combustion cylinders via a recirculation channel, as a function of an intake manifold air temperature and pressure at which the engine is operated. | 04-24-2014 |
20150053176 | METHODS AND SYSTEMS FOR AIR FUEL RATIO CONTROL - Various methods and systems for an engine driving an electrical power generation system are provided. In one embodiment, an example method for an engine driving an electrical power generation system includes adjusting an engine speed in response to a relationship between oxygen and fuel while maintaining a power transmitted to the electrical power generation system. | 02-26-2015 |
Patent application number | Description | Published |
20110283682 | SYSTEM AND METHOD FOR REGENERATING A PARTICULATE FILTER - Various methods and systems are provided for a vehicle with an engine. In one example, a method includes identifying an approaching tunnel. The method further includes, responsive to a particulate load of a particulate filter, the particulate filter disposed in an exhaust treatment system of an engine of the vehicle, initiating regeneration of the particulate filter at a selected distance before the tunnel such that regeneration is performed before the vehicle enters the tunnel. | 11-24-2011 |
20120310456 | METHODS AND SYSTEMS FOR AIR FUEL RATIO CONTROL - Various methods and systems for an engine driving an electrical power generation system are provided. In one embodiment, an example method for an engine driving an electrical power generation system includes adjusting an engine speed in response to a relationship between oxygen and fuel while maintaining a power transmitted to the electrical power generation system. | 12-06-2012 |
20120323465 | METHODS AND SYSTEMS FOR EXHAUST GAS RECIRCULATION COOLER REGENERATION - Various methods and systems are provided for regenerating an exhaust gas recirculation cooler. One example method includes, initiating an EGR cooler regeneration mode, wherein the EGR cooler regeneration mode comprises changing a fuel distribution of a donor cylinder group relative to a non-donor cylinder group of an engine, and increasing at least one of engine speed or load of the engine. | 12-20-2012 |
20130024086 | METHOD AND SYSTEM FOR CONTROLLING AN ENGINE DURING TUNNELING OPERATION - Various methods and systems are provided for an engine in a vehicle, the engine having an intake and an exhaust. In one example, a method includes determining the vehicle is under tunneling operation in response to one or more of an intake gas constituent and an exhaust gas constituent. The method further comprises adjusting one or more operating parameters in response to the determination of tunneling operation. | 01-24-2013 |
20130247562 | METHODS AND SYSTEMS FOR AN ENGINE - Various methods and systems are provided for an engine system for a vehicle. In one example, the engine system includes a turbocharger including a turbine, the turbocharger configured to be driven via exhaust gas from an engine during a turbocharger mode and via the exhaust gas from the engine and mechanical output from the engine during a supercharger mode. The engine system further includes a bypass control element to decrease an amount of energy extracted from exhaust flow through the turbine in a regeneration mode of operation and to increase an amount of energy extracted from exhaust flow through the turbine during a non-regeneration mode of operation, and an aftertreatment system disposed downstream of the turbocharger and including a particulate filter. | 09-26-2013 |
20140033705 | SYSTEMS AND METHODS FOR CONTROLLING EXHAUST GAS RECIRCULATION - Various systems and method for controlling exhaust gas recirculation (EGR) in an internal combustion engine are provided. In one embodiment, a method includes during a first operating condition, directing exhaust gas from a first cylinder group into an engine air intake stream and directing substantially no exhaust gas from a second cylinder group to the engine air intake stream. The method further includes during a second operating condition, directing exhaust gas from the second cylinder group through a turbocharger bypass into the engine air intake stream and reducing a fuel injection amount of the first cylinder group relative to a fuel injection amount of the second cylinder group. | 02-06-2014 |
20140034014 | SYSTEMS AND METHODS FOR CONTROLLING EXHAUST GAS RECIRCULATION - Various systems and method for controlling exhaust gas recirculation (EGR) in an internal combustion engine are provided. In one embodiment, a method includes injecting fuel to a subset of cylinders that includes less than all cylinders of a first cylinder group to obtain a target EGR rate. The first cylinder group provides exhaust gas through an exhaust gas recirculation (EGR) passage structure fluidly coupled between the first cylinder group and an intake passage structure. The method further includes injecting fuel to at least one cylinder of a second cylinder group. The second cylinder group provides substantially no exhaust gas through the EGR passage structure. | 02-06-2014 |
20140041384 | METHODS AND SYSTEM FOR CONTROLLING SURGE IN A TWO-STAGE TURBOCHARGER - Various methods and systems are provided for controlling air flow in a two-stage turbocharger. In one example, an engine method comprises adjusting one or more exhaust gas recirculation valves to maintain a first turbocharger within a first air flow range, and adjusting a turbocharger bypass valve to maintain a second turbocharger within a second air flow range. | 02-13-2014 |
20140047834 | METHODS AND SYSTEM FOR CONTROL OF A TWO-STAGE TURBOCHARGER - Various methods and systems are provided for regulating air flow through a two-stage turbocharger. In one embodiment, a method for an engine comprises, in response to a transient engine operating event, adjusting a provided amount of exhaust gas recirculation provided to an intake of the engine based on at least one of desired intake oxygen, one or more turbocharger conditions of a turbocharger, or a magnitude of the transient engine operating event. | 02-20-2014 |
20140067228 | METHODS AND SYSTEM FOR ENGINE OPERATION DURING DEGRADATION OF A TWO-STAGE TURBOCHARGER - Various methods and systems are provided for engine operation with a degraded turbocharger. In one embodiment, a method for an engine comprises reducing mass flow through a first turbocharger while continuing engine operation and adjusting operation of a second turbocharger in response to detected degradation of the first turbocharger. | 03-06-2014 |
20140067236 | METHODS AND SYSTEM TO PREVENT EXHAUST OVERHEATING - Various methods and systems are provided for lowering exhaust gas temperature. In one embodiment, a method comprises increasing an air-to-fuel ratio of an engine in response to an exhaust gas temperature exceeding a threshold temperature value to lower the exhaust gas temperature to a temperature below the threshold temperature value. | 03-06-2014 |
20140208739 | METHOD AND SYSTEM FOR EGR CONTROL FOR AMBIENT CONDITIONS - Various methods and systems are provided for adjusting a flow of exhaust gas in an exhaust gas recirculation system. In one embodiment, a method for an engine comprises controlling a flow of exhaust gas through an exhaust gas recirculation system of an engine system based on a choke level of a turbocharger. For example, the flow of exhaust gas in the exhaust gas recirculation system may be reduced to within a threshold of a choke level of the turbocharger, in response to an ambient condition. | 07-31-2014 |
20140214304 | METHODS FOR INTENTIONAL TURBO SURGING FOR ENHANCED SYSTEM CONTROL AND PROTECTIONS - Various methods and systems are provided for determining a surge level of a compressor. In one embodiment, a method for an engine comprises updating a stored estimate of a surge level of a compressor responsive to detection of a surge event. | 07-31-2014 |
Patent application number | Description | Published |
20090252581 | Pallet Handling System for a Machine Tool - A machine tool has pass-through pallet loading allowing pallets to be loaded or discharged from either side of the machine. The pallet receiver is mounted on the X-axis of the machine, and the pallet is loaded onto the pallet receiver with the pallet in a vertical orientation. Cross axis rollers on the pallet receiver support the pallet and spacing rollers maintain the pallet spaced from Z-axis locating pads as it moves to a centered position on the pallet receiver. The Z-axis pads present a relatively large surface area to the rear face of the pallet, and are configured to provide vacuum clamping to lock the pallet in all three axes once it is centered on the pallet receiver. A rotating key is provided to center and lock the pallet relative to the pallet receiver before the vacuum clamping is applied. | 10-08-2009 |
20090252587 | Pallet Loader and Manipulator - A pallet load stand and manipulator allows a pallet to receive a workpiece and the workpiece to be clamped to the pallet while the pallet is in a horizontal position. Once the workpiece has been clamped to the pallet, the pallet may be rotated to a vertical position so that the pallet may be loaded onto a machine tool that operates on a workpiece with the pallet in the vertical position. The pallet may also be rotated to an intermediate position, similar to an artist's easel, in which the pallet is held in an inclined position, between the horizontal and vertical positions by positive locating assemblies and positive stops. | 10-08-2009 |
20120224931 | HIGH RIGIDITY MOVING COLUMN HORIZONTAL MACHINE TOOL - A rigid design for a machine tool having perpendicular X, Y, and Z axes includes fixed X-axis frame members at the back of the machine, fixed Z-axis vertical frame members at the front of the machine, and fixed upper and lower Z-axis frame members rigidly attached to the fixed X-axis frame members and the fixed Z-axis vertical frame members. The frame members form a fixed, rigid, closed force loop design. A movable Y-axis column is bifurcated and a headstock is mounted in the center opening of the column. The headstock is advanced and retracted relative to the workpiece by moving the Y-axis column and the headstock relative to the workpiece. Because the headstock is fixed relative to the Y-axis column, the unsupported portion of the headstock relative to the Y-axis column does not change as the Z-axis position of the headstock changes relative to the workpiece. | 09-06-2012 |
20130118848 | SYMMETRICAL HEAD MOUNTED TUNED MASS DAMPER - A tuned mass damper is designed for a machine tool head that moves in the X, Y, and Z directions and rotates around a C-axis that is coincident with the axis of an arm that supports the head. The damper comprises a pair of damper masses symmetrically arranged around the head. Each damper mass has a center of gravity which is approximately in the geometric center of the mass. A resilient mounting is provided for each of the damper masses allowing the damper masses to damp out vibration in the X and Y directions regardless of the orientation of the head. | 05-16-2013 |
20140054885 | C-AXIS RING FOR A MACHINE TOOL - A rotary joint for a fluid is in the form of a hollow ring having an upper half and a lower half that are rotatable relative to one another in an X-Y plane around a C-axis. An inlet tube admits fluid to the ring and an outlet tube exhausts fluid from the ring. Both the inlet tube and the outlet tube are displaced from the C-axis. An inlet elbow is positioned in the hollow ring and has a rounded bend in the interior of the ring that directs fluid around the circumference of the ring. An outlet manifold that is tangential to the outer surface of the ring is coupled to the outlet tube. | 02-27-2014 |