Patent application number | Description | Published |
20080289329 | MASTER CYLINDER COMPRISING A RESUPPLY-PROMOTING SEAL - Brake master cylinder ( | 11-27-2008 |
20080289330 | MASTER CYLINDER COMPRISING A SEAL AND AN ASSOCIATED GROOVE PROMOTING RESUPPLY - Brake master cylinder ( | 11-27-2008 |
20080289331 | MASTER CYLINDER COMPRISING A HELICAL RESUPPLY GROOVE - Brake master cylinder ( | 11-27-2008 |
20090288412 | MASTER CYLINDER WITH REDUCED FREE TRAVEL - The invention relates to a master cylinder ( | 11-26-2009 |
20100154407 | BRAKING CIRCUIT MASTER CYLINDER LIP SEAL - Master cylinder of a hydraulic braking circuit, particularly for a motor vehicle, comprising a piston ( | 06-24-2010 |
20100156052 | MOTOR VEHICLE BRAKE MASTER CYLINDER SEAL - Master cylinder for a hydraulic braking circuit, particularly for a motor vehicle, comprising an annular seal ( | 06-24-2010 |
20100219591 | POWER-ASSIST BRAKE SYSTEM EQUIPPED WITH ADHESIVE JOINT AND METHOD FOR MOUNTING SAME - In order to allow a single operator on a vehicle assembly line to attach a brake servo to a bulkhead by moving round from the engine compartment side to the passenger compartment side, use is made of a brake servo fitted with an adhesive and insulating seal ( | 09-02-2010 |
20140041221 | METHOD FOR DETECTING AN ERROR IN THE INSTALLATION OF A SEAL IN A MASTER CYLINDER - A method is described for detecting an incorrectly installed seal in a master-cylinder having a seal. The master cylinder is subjected to a pressure comprised between approximately 0.3 and 0.6 MPa at the conclusion of master-cylinder assembly and, if there is a drop in the pressure, the seal is considered to have been installed in reverse in the groove of the master cylinder. | 02-13-2014 |
20140053546 | TANDEM MASTER CYLINDER SECONDARY PISTON AND MASTER CYLINDER EQUIPPED WITH SUCH A SECONDARY PISTON - A master cylinder having a primary piston and a secondary piston is described. The secondary piston is realized of plastic material; it is composed of a skirt and an end wall. The forward edge of the skirt is equipped with longitudinal slots intended to cooperate with the resupply seal to resupply the secondary pressure chamber and ensure operation in rest position whenever the brake circuit is in ESP mode. Supply occurs from the supply chamber, which is connected to the brake fluid reservoir. | 02-27-2014 |
20140060037 | BRAKE SYSTEM MASTER-CYLINDER SEAL - Master-cylinder seal housed in a groove around a piston has a core connected to three annular and concentric lips. The core rests against a side of the groove and has: a surface provided with an interior edge followed by a peripheral platter cut by at least one channel, and an exterior crown provided with a connection zone formed by an interruption in the crown and deformable due to pressure within the seal to recreate the crown's continuity and impermeability while facilitating purging the brake system when there is no pressure in the channel and the connection zone. | 03-06-2014 |
20140096517 | PRIMARY PISTON COMPONENT FOR A MASTER CYLINDER OF A HYDRAULIC BRAKE SYSTEM AND METHOD OF OPERATING A HYDRAULIC BRAKE SYSTEM - A primary piston component for a master cylinder of a hydraulic brake system includes a primary piston housing and an additional piston component, which is configured to be at least partially movable into a cavity of the primary piston housing. An inner piston body extends through the cavity along a central line of the primary piston component. A braking force applied on a brake actuating element is transferable at least partially on the inner piston body, and further on the primary piston housing. The additional piston component is at least partially movable into the cavity between the inner piston body and the primary piston housing, and a brake booster force is transferable at least partially on the additional piston component, and via the inner piston body on the primary piston housing. A method of operating a hydraulic brake system is also described. | 04-10-2014 |
20140102292 | PRIMARY PLASTIC PISTON WITH FUNCTIONAL INSERT FOR A PENETRATION-TYPE MASTER CYLINDER AND A MASTER CYLINDER EQUIPPED WITH SUCH A PISTON - A primary piston is described of molded plastic and equipped with a functional metallic insert and at least one groove. The primary piston is installed in a master cylinder comprising at least the primary piston and a secondary piston, these being mounted in the bore hole of a master cylinder. These pistons can create pressure in a primary pressure chamber and a secondary pressure chamber, respectively, due to the action of a push rod on the primary piston. | 04-17-2014 |
20140109765 | PLASTIC PRIMARY PISTON WITH STAMPED SHEET-METAL FUNCTIONAL INSERT FOR PENETRATION-TYPE TANDEM MASTER CYLINDER AND MASTER CYLINDER EQUIPPED WITH SUCH A PISTON - A master cylinder includes at least one primary piston and one secondary piston installed in the bore hole of the master cylinder, which pistons are used to create pressure. The primary piston has a body of molded plastic material and is equipped with a functional metallic insert which has the shape of a spherical cap capable of accommodating a push rod. | 04-24-2014 |
20140150645 | Plastic primary piston with insert for a tandem penetration-type master cylinder and a master cylinder equipped with such a piston - A primary piston of molded plastic material equipped with a metallic insert and having grooves, mounted in a master cylinder comprising at least a primary piston and a secondary piston mounted in the bore hole of the master cylinder. These pistons can create pressure, respectively, in a primary pressure chamber and in a secondary pressure chamber due to the action of a push rod on the primary piston. | 06-05-2014 |
20140165553 | PRIMARY PISTON FOR A TANDEM MASTER CYLINDER AND TANDEM MASTER CYLINDER EQUIPPED WITH SUCH A PRIMARY PISTON - A primary piston composed of a skirt and an intermediate back wall having a rear face receiving the servobrake thrustrod and a forward face for the telescoping rod and the spring pushing the secondary piston. The front of the skirt has longitudinal grooves open in front and closed in the rear. The thickness of the skirt beneath the grooves and the part of the skirt between two successive grooves in the peripheral direction foam a front face enabling the principal piston to push the secondary piston. The principal piston is made of a single piece of plastic material. | 06-19-2014 |
20150068202 | MASTER CYLINDER WITH FLOW LIMITATION SYSTEM - A brake fluid reservoir is connected to a master cylinder by a neck which is arranged in an upper chamber of the master cylinder. Holes extend through a surface of a piston, opening to a pressure chamber. The piston extends through a bore hole of the master cylinder. A drill hole extends through an interior wall of the master cylinder, opening into the bore hole, thereby providing communication between the fluid reservoir and the pressure chamber. A floating orifice plate is arranged within the upper chamber, between the neck of the brake fluid reservoir chamber and the drill hole, such that the orifice plate forms a baffle that limits a flow rate of liquid from the brake fluid reservoir chamber to the pressure chamber; and includes supports pressing against a surface of the interior wall of the master cylinder and arranged around the first side of the drill hole. | 03-12-2015 |