Hydraulik-Ring GmbH Patent applications |
Patent application number | Title | Published |
20120031358 | Camshaft adjuster, in particular with camshaft - A valve train comprises a double camshaft with an inner camshaft and an outer camshaft. The two camshafts are preferably designed coaxially. By means of a rotatory change in position of the inner camshaft to the outer camshaft, the angular position of at least one cam of the inner camshaft is adjusted or set relative to a cam of the outer camshaft. The cams are divided into sets that can occupy variable cam positions relative to one another. Various configurations of a camshaft adjuster are provided for this purpose. | 02-09-2012 |
20110266479 | Hydraulic valve - The invention relates to a hydraulic valve for oscillating-motor camshaft adjuster The valve has a bush and a hollow piston with a piston bottom. The piston is axially movable within the bush by means of an actuator against the force of a screw-type pressure spring. The actuator is applied to the piston bottom. A sleeve secured in the bush is disposed inside the hollow piston and can be displaced relative to the piston. The wall of this sleeve has at least one through-opening, which leads to at least one opening of the hollow piston, which opening can guide a supply pressure (P) applied inside the sleeve alternatively to two sets of pressure chambers of the oscillating-motor camshaft adjuster. The sleeve has a sleeve bottom that seals off the inside space of hollow piston. | 11-03-2011 |
20110247576 | OSCILLATING-MOTOR CAMSHAFT ADJUSTER HAVING A HYDRAULIC VALVE - The invention relates to an oscillating-motor camshaft adjuster having a hydraulic valve, which has two working ports. These two working ports each have a standard opening axially adjacent to one another and an opening for the utilization of pressure peaks as a consequence of camshaft alternating torques. A hydraulic pressure can be guided from a supply port to the working port to be loaded, while the working port to be relieved of pressure is guided to a tank port. In order to also keep the control performance high in the case of internal combustion engines with very greatly fluctuating camshaft alternating torques, it is proposed according to the invention that a position of hydraulic valve can be controlled proportionally, in which the pressure peaks of the working port to be relieved of pressure are blocked relative to the supply port and the working port that is to be loaded. | 10-13-2011 |
20110114047 | CAMSHAFT INSERT - The invention relates to a camshaft insert for a camshaft, which can be, in particular, a composite camshaft. In this case, the camshaft insert bears an oscillating motor adjuster. An accumulator that can be loaded by means of a spring force is disposed inside camshaft insert. Alternatively, the accumulator can also be disposed in the camshaft. | 05-19-2011 |
20110094464 | Vane-type motor cam phaser with a friction disc and mounting method - The invention relates to a vane-type motor cam phaser with a rotor and a camshaft. Between this rotor and the camshaft, a friction disc is braced axially by means of a central screw. Accordingly, this friction disc transmits a drive torque in a frictionally engaged manner. For pivoting the rotor in two oppositely lying directions of rotation, at least two oil channels (A, B) run through the camshaft and a hub of the rotor. At least the one oil channel (A or B) is sealed hydraulically radially inward by an inner ring part of the friction disc and radially outward by an outer ring part of the friction disc. The inner ring part and the outer ring part are joined to each other by means of a crossarm. | 04-28-2011 |
20100300388 | Vane-type camshaft adjuster system - The object of the invention is to provide an economical vane-type camshaft adjuster system that meets the various requirements of various motors. For this purpose, according to the invention a modular system is provided for the valves of a vane-type camshaft adjuster system. Two different embodiments of valves are proposed. With one embodiment, a valve with mid-locking and without mid-locking may be constructed using the same bush. With the other embodiment, a valve with and without special utilization of the camshaft alternating torques may be constructed using the same bush. | 12-02-2010 |
20100117016 | Solenoid valve - The invention relates to a solenoid valve that is to be mounted leaktight and in a simple manner. Provided according to the invention is a first housing part with a tool engagement portion for screwing of a second housing part into an inner thread of a receptacle. The two housing parts are joined immovably to each other. The first housing part has a tensile strength that is greater than a tensile strength of second housing part. | 05-13-2010 |
20100075765 | VANE-TYPE CAMSHAFT ADJUSTER - A vane-type camshaft adjuster has a side plane that is arranged perpendicular to the center axis of the camshaft adjuster. A coil spring abuts the side plane and is connected between a rotor and stator to maintain the rotor at a certain angular position relative to the stator. | 03-25-2010 |
20090256088 | Freeze-resistant metering valve - A freeze-resistant metering valve is provided that comprises a magnetic part and a hydraulic part. The magnetic part has an armature biased by a spring. The hydraulic part has an annular space for receiving and conveying a liquid as well as a tappet facing a valve seat. The valve seat comprises a nozzle opening on the side facing away from the tappet. In a currentless state, the tappet blocks the annular space in the direction of an opening (nozzle opening) until a freezing pressure exerted onto the armature generates a sufficient force by virtue of the solidifying liquid. This force is used to counteract the spring force until a freeze expansion space is created by way of a relieving motion. | 10-15-2009 |
20090183702 | Doubled cam shaft adjuster in layered construction - The present invention provides a cam shaft adjuster, which is designed for controlling a double cam shaft, which has a layered construction. The cam shaft adjuster is equipped with a first rotor-type output body and a second rotor-type output body which are arranged parallel to each other with their rotary vane body parts. | 07-23-2009 |
20090071426 | Hydraulic circuit, particularly for camshaft adjusters, and corresponding control element - The invention relates to a valve and suitable hydraulic circuit, especially for camshaft adjusters of an internal combustion engine. The hydraulic circuit comprises a number of check valves or two-way valves operating as check valves, in order to provide a rapid camshaft adjuster with a high regulating quality. | 03-19-2009 |
20090071140 | Hydraulic circuit, particularly for camshaft adjusters, and corresponding control element - The invention relates to a valve and suitable hydraulic circuit, especially for camshaft adjusters of an internal combustion engine. The hydraulic circuit comprises a number of check valves or two-way valves operating as check valves, in order to provide a rapid camshaft adjuster with a high regulating quality. | 03-19-2009 |