Patent application number | Description | Published |
20110265473 | EXHAUST GAS RECIRCULATION SYSTEM - An exhaust gas recirculation (EGR) system for a vehicle is provided. The EGR system includes a turbine fluidly coupled downstream of an exhaust manifold and an EGR conduit including a first port coupled to an exhaust passage directly downstream of the turbine, an axis of the first port arrange at a non-perpendicular angle with respect to the rotation axis of the turbine and a second port coupled to an intake system. | 11-03-2011 |
20120291432 | Method and System for Controlling a Turbocharger Compressor Bypass - A turbocharger compressor bypass valve is disclosed. In one example, the compressor bypass valve operates inversely proportional to engine throttle operation. The approach may simplify compressor bypass valve control and reduced engine system complexity. | 11-22-2012 |
20140041380 | MULTI-STAGED WASTEGATE - Embodiments for controlling boost pressure are provided. In one example, a method of controlling a turbocharger of an engine via a multi-staged wastegate comprises during a first condition, actuating a first stage of the wastegate based on boost pressure generated by the turbocharger, and actuating a second stage of the wastegate based on a temperature of a catalyst downstream of the turbocharger. In this way, catalyst heating and boost control may be provided by a common wastegate. | 02-13-2014 |
20140060006 | METHOD AND SYSTEM FOR OPERATING AN ENGINE TURBOCHARGER - A system and method for operating an engine turbocharger is described. In one example, the turbocharger is rotated in different directions in response to operating conditions. The system and method may reduce engine emissions. | 03-06-2014 |
20140067227 | METHOD AND SYSTEM FOR IMPROVING STARTING OF A TURBOCHARGED ENGINE - A system and method for improving engine emissions is described. In one example, engine emissions may be improved via increasing rotational resistance of a turbocharger while a temperature of an exhaust after treatment device is less than a threshold temperature. The system and method may reduce an amount of time for the after treatment device to reach an operating temperature. | 03-06-2014 |
20140165556 | ENGINE INCLUDING A WASTEGATE VALVE AND METHOD FOR OPERATION OF A TURBOCHARGER SYSTEM - A turbocharger system is described herein. The turbocharger system may include a cylinder head forming a portion of a combustion chamber and including an integrated exhaust manifold in fluidic communication with the combustion chamber and a wastegate valve positioned within the cylinder head including an inlet in fluidic communication with the integrated exhaust manifold and an outlet in fluidic communication with an outlet of a turbine positioned downstream of the integrated exhaust manifold. | 06-19-2014 |
20140219849 | BRANCH COMMUNICATION VALVE FOR A TWIN SCROLL TURBOCHARGER - Methods and systems are provided for a branch communication valve in a twin turbocharger system. A branch communication valve may be positioned adjacent to a dividing wall separating a first scroll and a second scroll of the twin turbocharger. In an open position, the branch communication valve increases fluid communication between the first scroll and the second scroll and in a closed position, the branch communication valve decreases fluid communication between the first scroll and the second scroll. | 08-07-2014 |
20140352668 | SYSTEMS AND METHODS FOR HEATING A PRE-COMPRESSOR DUCT TO REDUCE CONDENSATE FORMATION - Methods and systems are provided for providing auxiliary heat to a pre-compressor duct wall to reduce condensate formation. A coolant valve may control the delivery of heated engine coolant to the pre-compressor duct wall. The coolant valve may be adjusted based on condensate formation at the pre-compressor duct wall. | 12-04-2014 |
20140360182 | METHOD AND SYSTEM FOR BINARY FLOW TURBINE CONTROL - Methods and systems are provided for adjusting the opening of a scroll valve of a binary flow turbine. Scroll valve adjustments are used at different engine operating conditions to improve engine performance and boost response. Scroll valve adjustments are coordinated with wastegate and EGR valve adjustments for improved engine control. | 12-11-2014 |
20140360185 | METHOD AND SYSTEM FOR BINARY FLOW TURBINE CONTROL - Methods and systems are provided for adjusting the opening of a scroll valve of a binary flow turbine. Scroll valve adjustments are used at different engine operating conditions to improve engine performance and boost response. Scroll valve adjustments are coordinated with wastegate and EGR valve adjustments for improved engine control. | 12-11-2014 |
20140377059 | INTRODUCTION OF EXHAUST GAS RECIRCULATION AT A COMPRESSOR BLADE TRAILING EDGE - Methods and systems are provided for injecting exhaust gases from an exhaust gas recirculation system proximate to a trailing edge of a compressor wheel of a compressor. In one example, a compressor of a turbocharger may include an exhaust gas recirculation inlet volute within a casting of the compressor. The exhaust gas recirculation inlet volute may include an injection port positioned downstream of the trailing edge of the compressor wheel for injecting exhaust gases into intake air flow. | 12-25-2014 |