| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 060581000 | Plural structurally related master pistons, cylinders or pulsator circuits | 7 |
| 20080229741 | Vehicular Brake System - In a vehicular brake system, an input piston and a pressure piston are coaxially and axially movably supported in a cylinder, and a brake pedal is coupled to the input piston. Pressure chambers formed on the axially opposite sides of the input piston communicate with each other via a communication passage. A control oil pressure can be supplied to a first supply port of the communication passage, and a reaction-force oil pressure can be supplied to a second supply port of a reaction-force chamber of the input piston, while braking oil pressures can be delivered from delivery ports of the respective pressure chambers. | 09-25-2008 |
| 20100071362 | PRESSURE SYSTEM HAVING AT LEAST TWO PRESSURE CIRCUITS - A pressure system having at least two pressure circuits each including a respective positive-displacement element and each compression side of the positive-displacement elements being in operative communication via a compensation device in such a way that a pressure increase in the first pressure circuit leads to a pressure increase in the second pressure circuit, and the pressure increase of the first pressure circuit is essentially reduced by the amount of the pressure increase of the second pressure circuit, and the reduction in the pressure increase is less than a defined limit value. | 03-25-2010 |
| 20110138803 | System of Transferring and Storing Energy and Method of Use Thereof - A system of transferring energy and a method of use thereof, wherein the system and method utilize an energy source, a motor and a plurality of hydraulic networks of varying lengths to transfer energy to an energy output device, and wherein the energy transferred to the energy output device is selectively transferred to an external load, and wherein electromechanical interference is obviated. The system further provides for differing sizes of input hydraulic and output hydraulic networks to facilitate conformance to size constraints. | 06-16-2011 |
| 20120006017 | FAST-FILL TANDEM MASTER CYLINDER - A fast-fill braking system in one embodiment includes a master cylinder, a first chamber within the master cylinder, a second chamber within the master cylinder located forward of the first chamber, a fast-fill piston within the first chamber, a primary piston within the first chamber and movable with respect to the fast-fill piston, and a secondary piston within the second chamber. | 01-12-2012 |
| 20120011844 | DECOUPLED INLINE HYDRAULIC BOOSTER - An in-line brake system with a hydraulic booster includes a master cylinder defining a cylinder bore, a master cylinder piston located within the cylinder bore, a transfer piston located within the cylinder bore rearwardly of the master cylinder piston, a transfer piston actuator with a first seat, a sealing member aligned with the first seat, a sealing member spring operably connected to the sealing member and the transfer piston, an input rod aligned with the first seat, a return spring operably connected to the input rod and the transfer piston actuator, a sleeve actuator located within the cylinder bore rearwardly of the master cylinder, and a sleeve spring configured to bias the sleeve actuator away from the master cylinder piston, wherein the sleeve actuator is configured to bias the transfer piston toward the master cylinder piston in response to an applied boost pressure. | 01-19-2012 |
| 20150075158 | Piston pump - A hand-operated piston pump includes a drive shaft and a rotor mounted in a housing case, the rotor having axial compression chambers, a piston biased by an elastic member sliding in each compression chamber and having a projecting end that engages a cam track; a fluid reservoir in the housing case; a valve plate downstream of the rotor having conduits for a pressurized fluid that communicate with conduits in walls of the compression chambers, the valve plate being non-rotatably mounted below the housing case and communicating with conduits that carry the pressurized fluid to and from a consuming unit through an interposed check valve inserted in a corresponding valve body, the valve body having an upper flange with fluid supply and return channels communicating with the fluid conduits of the valve plate. The valve plate floats relative to the upper flange and is separated therefrom by a separating member. | 03-19-2015 |
| 20150353066 | MASTER BRAKE CYLINDER FOR A HYDRAULIC MOTOR VEHICLE BRAKE SYSTEM - A tandem master brake cylinder for a hydraulic motor vehicle brake system, which is impinged upon by a pneumatic brake booster, including at least one piston which is displaceable in a housing and has a plurality of follow-up connections the follow-up connections allowing a hydraulic connection between the pressure chamber and a pressureless follow-up chamber at the start of a braking operation. At least some of the follow-up connections are formed as transverse bores through a wall of at least one piston and are arranged at a same distance relative to the piston edge in a main plane, wherein the overtravel thereof by the sealing collar defines a closure path of the piston. In order to allow a smooth, quiet and yet sufficiently reliable braking initiation, the follow-up connections are arranged in a distributed manner on at least three planes, the planes being arranged at a distance to one another and in parallel to the piston edge. | 12-10-2015 |
