Patent application number | Description | Published |
20090110556 | Process of making a shrouded impeller - A method of fabricating a shrouded impeller is disclosed. The method includes providing an open faced impeller, the open faced impeller including a plurality of blades extending at least partially radially from a hub. The method also includes performing a first powder metallurgical process to form a first material over at least part of the open faced impeller. The method further includes forming a shroud circumferentially disposed about the hub and connected to one of more of the blades. Forming the shroud includes performing a second powder metallurgical process to metallurgically bond the shroud to at least some of the blades. | 04-30-2009 |
20090160092 | Precision casting process - A mold assembly for sand casting is disclosed. The mold assembly includes a drag having a first vertical axis and a first surface. The first surface extends generally perpendicular to the first vertical axis. The mold assembly also includes a cope having a second vertical axis positioned on the first surface such that the first vertical axis and the second vertical axis coincide to form a central vertical axis. The cope includes a second surface and a third surface both extending generally perpendicular to the second vertical axis. The mold assembly also includes a casting cavity disposed about the central vertical axis and located between the first surface and the second surface, and a core disposed about the central vertical axis and positioned in the casting cavity. The mold cavity further includes a pouring cup disposed about the second vertical axis and extending downward from the third surface to the casting cavity. The pouring cup is configured to deliver a substantial portion of liquid material at a time directly into the casting cavity without directing the liquid material through a choke point. | 06-25-2009 |
20100327140 | Method for Use of Easy Set-Up Pole and Support System - A method for installing a means capable of removably securing a pole, comprising installing a first support, installing a second support, inserting said pole into said first support, and thereafter, inserting said pole into said second support. | 12-30-2010 |
Patent application number | Description | Published |
20090051215 | METHOD FOR OPERATING A BRAKE SYSTEM FOR MOTOR VEHICLES - The invention relates to a method for operating a braking system for motor vehicles with electrically actuated hydraulic valves, the coils of which are powered up, at least in phases, with currents which modify the currentless state of the hydraulic valves, in order to heat the hydraulic fluid present in the system. The hydraulic fluid is heated via a heating profile which, in accordance with the hydraulic fluid temperature, activates the heating phase of the hydraulic fluid. The heating profile consists of a first heating phase and, subsequent thereto, a second heating phase. During the first heating phase, the coils are powered up in such a way that the coil temperature at the end of the first heating phase corresponds to a pre-defined temperature value of the coil which is at least approximately maintained during the second heating phase when powering up the coils. | 02-26-2009 |
20110251769 | OPERATION OF A BRAKE BOOSTER AS A PEDAL SIMULATOR - The invention describes a method for operating a controllable electromechanical brake booster and the corresponding brake booster which, via a coupling element between the brake booster and pedal rod, is capable of applying a force in opposition to the pedal activation force of a driver, and can therefore be operated as a pedal simulator. For this purpose, a pedal opposing force can be set by a characteristic curve as a function of a pedal position which is predefined by the driver, and can give the driver a pedal sensation even if there is no reaction of, for example, a conventional brake system. In a further operating mode, the brake booster can be operated in its original form. | 10-13-2011 |
20110254358 | METHOD FOR CONTROLLING A BRAKE ACTUATION OF A HYBRID VEHICLE SIMULATOR - The invention relates to a method for controlling the activation of a brake of a hydraulic vehicle brake system of a hybrid vehicle which can be braked by the generator mode of an electric drive motor. The invention proposes equipping the vehicle brake system with an electromechanical brake booster and generating a pedal force at a brake pedal with the brake booster when braking by the generator mode of the electric drive motor occurs. | 10-20-2011 |
20120042647 | Electromechanical Brake Booster - An electromechanical brake booster is disclosed. The brake booster is constructed with two worm gears which run in opposite directions and whose axial forces compensate one another. The worm gears drive toothed rack gears which convert a rotational driving movement into a translatory output movement for activating a master brake cylinder. As a result of the provision of two gear paths, the loading of each gear path is halved and an application of force to a booster body, which forms a gear output, is symmetrical. | 02-23-2012 |
20120074771 | Method for Operating a Hydraulic Vehicle Braking System that has an Anti-Lock Control Unit - A method for operating a hydraulic vehicle braking system that has an anti-lock control unit is disclosed. The system includes a brake master cylinder having an electromechanical brake booster. As the pressure level of the vehicle braking system decreases during an anti-lock control, in which all vehicle wheels are controlled, the boosting force of the brake booster is reduced in an anti-lock control of this type. | 03-29-2012 |
20120091788 | BRAKE SYSTEM FOR A VEHICLE AND METHOD FOR OPERATING A BRAKE SYSTEM FOR A VEHICLE - A brake system for a vehicle includes: a brake activation element; an input piston displaceable by at least a predefined minimum actuator travel distance when the brake activation element is operated; an output piston to which a driver braking force is transmittable from the brake activation element via the displaced input piston such that an internal pressure in a piston-cylinder unit of the brake system is increased; a first brake booster; and a spring device which, when the brake activation element is operated for an actuator travel distance which is less than the minimum actuator travel distance, is deformed in such a way that transmission of the driver braking force to the output piston is prevented. | 04-19-2012 |
20120179345 | CONTROL DEVICES FOR A BOOSTER BRAKE SYSTEM OF A VEHICLE AND METHOD FOR OPERATING A BOOSTER BRAKE SYSTEM OF A VEHICLE - The invention relates to a control device ( | 07-12-2012 |
20120256480 | Method for Actuating a Hydraulic Vehicle Brake System - A method for actuating a hydraulic vehicle brake system, includes a master brake cylinder with a preferably electromechanical brake booster and a wheel slip control device. The master brake cylinder is actuated simultaneously with the brake booster, and hydraulic pumps of the wheel slip control device are driven by an electric motor. Pressure builds more quickly in the wheel brakes of the vehicle brake system for safety and assistance functions that require high pressure build-up dynamic. The method also increases the wheel brake pressure using the pressure that can be generated by actuating the master brake cylinder with the brake booster. | 10-11-2012 |
20130181506 | BRAKE SYSTEM FOR A VEHICLE AND METHOD FOR OPERATING A BRAKE SYSTEM FOR A VEHICLE - A brake system includes: a brake actuating element; a first piston-cylinder unit having a first piston displaceable by the brake actuating element actuated by at least a predefined minimum actuation such that a first internal pressure in the first piston-cylinder unit is increased; at least one wheel brake cylinder having a brake pressure which is increased using the increased first internal pressure; a first brake booster; and a second piston-cylinder unit having a second piston displaceable by the first brake booster so that a second internal pressure in the second piston-cylinder unit is increased, and to which the at least one wheel brake cylinder is hydraulically connected such that the brake pressure of the at least one wheel brake cylinder is increased by the increased second internal pressure. | 07-18-2013 |
20140375114 | METHOD FOR OPERATING A HYDRAULIC BRAKE SYSTEM - A method for operating a motor vehicle hydraulic braking system having at least one electric motor-operated braking pressure generator. The output power of the electric motor-operated braking pressure generator is restricted during normal driving/braking situations and the restriction is temporarily deactivated upon identification of a critical driving situation, such as an overstressing of the brake system to include brake fade. | 12-25-2014 |