Renault S. A. S. Patent applications |
Patent application number | Title | Published |
20120204838 | MOUNTING SYSTEM FOR A RESONATING NEEDLE INJECTION DEVICE - A device for injecting fuel over a cylinder head of an engine, including a tubular body, an injection nozzle forming an extension of the tubular body, a needle extending coaxially to the nozzle in a form of a rod, an end of which includes a head forming a valve on a seat supported by the injection nozzle, and an actuator configured to cause a movement of the head so as to open the valve, the needle configured to axially resonate when the same is subjected to axial pulses at a predetermined nominal frequency by the actuator. A system for mounting the device includes a spacer for bearing on the cylinder head, as well as on a front surface of the tubular body at the connection to the nozzle. | 08-16-2012 |
20120037437 | AUTOMOBILE PROVIDED WITH A POWER SUPPLY BATTERY WHICH IS REMOVABLE BY A VERTICAL MOVEMENT, AND DEVICE FOR INSTALLING AND REMOVING SUCH A BATTERY - A motor vehicle including a structure including a bottom and which bears a motor powered by a removable power supply battery, the structure further including an element for receiving the battery and an attachment mechanism for attaching the battery onto the receiving element. The receiving element and the attachment mechanism are adapted to enable installation of the battery in the receiving element from the underside of the structure by an upward movement towards the structure, and removal of the battery under the structure by a downward movement in a direction opposite to the structure. | 02-16-2012 |
20110247407 | METHOD FOR DIAGNOSING THE EXCHANGER BYPASS FLAP IN AN EXHAUST GAS RECIRCULATION CIRCUIT - A method for diagnosing a failure of an EGR circuit of an engine including an EGR exchanger, an EGR valve, a bypass duct of the EGR exchanger, and a bypass flap arranged upstream from the EGR exchanger and the bypass duct to adjust a proportion of exhaust gases flowing therethrough. The EGR circuit can be activated according to a cooled mode, in which the flap is shut, or according to a bypass mode, in which the flat is open. The method carries out, during a diagnosis phase, two activations of the flap, and measures an average of variations of the EGR gas temperature at an outlet of the EGR exchanger during the diagnosis phase. | 10-13-2011 |
20110120792 | AIR GUIDE DEVICE FOR FRONT FACE STRUCTURE OF VEHICLE - The invention relates to a device for guiding air from a vehicle front surface structure including heat exchangers ( | 05-26-2011 |
20100262329 | SYSTEM AND METHOD FOR CONTROLLING THE RELEASE OF AN AUTOMATIC PARKING BRAKE DEVICE ONBOARD AN AUTOMOBILE - A system controlling release of an automatic parking brake onboard an automobile, that includes a mechanism estimating torque transmitted by the clutch, a sensor measuring an inclination angle of the rolling surface, and a mechanism controlling release of the parking brake device that compares the torque transmitted by the clutch with a continuous threshold torque depending on the inclination angle of the rolling surface at an end of a vehicle stop. | 10-14-2010 |
20090218983 | ELECTRICAL MANAGEMENT DEVICE FOR VEHICLE POWER SUPPLY - An electrical management device for a vehicle power supply that includes a single converter to minimize the number of components required to simultaneously control two energy sources, such as a photovoltaic source and a thermoelectric source, on board a motor vehicle that includes at least one electrical energy storage battery. | 09-03-2009 |
20090218846 | TRAPPING DETECTION SEAL FOR OPENING LEAVES OF VEHICLES - A trapping detection seal for opening leaves, for example motor vehicle opening leaves, of elongate shape with an elastically deformable cross section including a first cut-out region arranged between a first conducting region and a second conduction region so as to enable the two conducting regions to come into contact with one another during deformation of the seal in a first direction. A second cut-out region is arranged between the first conducting region and a third conducting region, the cross section of the seal being deformable in at least a second direction, which is different from the first direction, to enable the first conducting region to come into contact with the third conduction region during deformation of the seal in the second direction. | 09-03-2009 |
20090158708 | ENGINE COMPRISING A CATALYTIC CONVERTER WITH FAILSAFE OPERATION - The invention proposes an engine ( | 06-25-2009 |