| Patent application number | Description | Published |
|---|
| 20080236529 | Control Valve for a Device for Changing the Control Times of an Internal Combustion Engine - A control valve ( | 10-02-2008 |
| 20080245324 | Control Valve - A control valve ( | 10-09-2008 |
| 20080245983 | Hydraulic Directional Valve - An electromagnetic actuating unit ( | 10-09-2008 |
| 20080264200 | Feeder for a Camshaft Adjuster - A feeder for a camshaft adjuster is provided, including a central screw, a camshaft, and at least one flow resistance element. The camshaft is provided with a bore for accommodating the central screw. A channel is located between the camshaft and the central screw, in which the flow resistance element is provided in order to affect a flow of a fluid in the channel. | 10-30-2008 |
| 20080271689 | Control Valve for a Device for Variably Adjusting the Valve Timing for Gas Exchange Valves in an Internal Combustion Engine - A control valve ( | 11-06-2008 |
| 20090134349 | Control Valve for a Camshaft Adjuster - A control valve for a hydraulic adjuster for the camshaft of an internal combustion engine is provided, wherein an actuator acts on a pressure part ( | 05-28-2009 |
| 20090159829 | CONTROL VALVE FOR A CAMSHAFT ADJUSTER - A control valve ( | 06-25-2009 |
| 20090200502 | ELECTROMAGNETIC ACTUATOR FOR A HYDRAULIC DIRECTIONAL CONTROL VALVE - An electromagnetic actuator for a hydraulic directional control valve is provided. The electromagnetic actuator is used for adjusting a hydraulic directional control valve, for example, for the variable adjustment of the control times of an internal combustion engine. The electromagnetic actuator includes a housing ( | 08-13-2009 |
| 20090230337 | HYDRAULIC CONTROL VALVE - A hydraulic control valve ( | 09-17-2009 |
| 20100025606 | ELECTROMAGNETIC ACTUATION UNIT - The invention relates to an electromagnetic actuation unit ( | 02-04-2010 |
| 20100163128 | HYDRAULIC DIRECTIONAL VALVE - A hydraulic directional valve having an electromagnetic actuating unit and a valve section, an essentially cylindrical, blind hole-like receptacle being formed on one component of the actuating unit, a flange section of a valve housing of the valve section engaging in the receptacle, the flange section being provided with an angular groove which extends in a circumferential direction, and an essentially hollow cylindrical wall of the receptacle in the region of the annular groove engaging in said annular groove in such a way that it bears on the groove base of the annular groove, along the entire circumference of said annular groove. The torsional rigidity between the flange section and the wall is increased. In this context, particular emphasis is placed on processing reliability and economic viability of the connecting process. | 07-01-2010 |
| 20100288384 | HYDRAULIC CONTROL VALVE HAVING INTEGRATED CHECK VALVE - A hydraulic control valve for controlling pressurizing medium flows, which has a hydraulically unlockable cheek valve that includes a closing element by which a valve opening can be closed. The closing element is equipped with at least one through-hole such that a locking part that is spring-loaded via at least one flexible tongue is formed for locking the valve opening. | 11-18-2010 |
| 20100327209 | HYDRAULIC MEDIUM INSERT FOR A CONTROL VALVE IN A HYDRAULIC ACTUATOR - A hydraulic medium insert for a control valve in a hydraulic actuator which has a tubular guide sleeve for guiding a control piston, which is disposed in a receptacle, which has passage openings for the hydraulic medium, which are disposed in the guide sleeve and separated by webs. A plastic part is disposed on the exterior side of the guide sleeve and has sealing webs, which are supported on the inside on the webs of the guide sleeve, which separate the passage openings, and press against the inside of the receptacle to form a seal on the outside. | 12-30-2010 |
| 20110000447 | CONTROL VALVE - A control valve, particularly for a device for altering the actuation periods of an internal combustion engine, which has a valve housing that is configured with a substantially hollow cylindrical structure, a control piston disposed inside the valve housing and is axially displaceable therein, and a closing element. The control piston has at least one section with a hollow structure that ends in an opening of the control piston and the closing element is disposed in the opening. | 01-06-2011 |
| 20110005482 | DEVICE FOR VARIABLY ADJUSTING CONTROL TIMES OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE - A device for variably adjusting control times of gas exchange valves of an internal combustion engine. The device has a drive element, an output element, a rotation angle limiting device, a control valve and counter-working pressure chambers. Phase adjustment between the output and drive element is initiated by applying pressure to one of the pressure chambers while discharging the other pressure chamber. The rotation angle limiting device, which can be transferred from a locked state into an unlocked state due to pressure, prevents phasing when locked and allows phasing when unlocked. The control valve has a valve housing and a control piston. An inflow connection, an outflow connection, a first and a second working connection and a third working connection are embodied on the valve housing. The working connections are offset in relation to other and do not overlap on the valve housing. | 01-13-2011 |
| 20110084018 | RING FILTER - A ring filter with a frame and a filter fabric. The frame has two axially spaced apart ring-shaped frame elements which are connected to one another by transverse struts. Between the frame elements and the transverse struts the filter fabric is arranged, and frame has two open ends which are located opposite each other in the circumferential direction. | 04-14-2011 |
| 20110121214 | ELECTROMAGNETIC ACTUATING UNIT - An electromagnetic actuating unit for a hydraulic valve with a housing and a closure element. The housing at least partially delimits the electromagnetic actuating unit in relation to the surroundings. The closure element is arranged within an introductory opening of the housing. A sealing-means receptacle is formed on a boundary surface between the housing and the closure element. Furthermore, at least one first channel leads into the sealing-means receptacle and is open towards the surroundings of the actuating unit. A sealing element, which is arranged in the sealing-means receptacle, is placed into the sealing-means receptacle via the first channel. | 05-26-2011 |
| 20110121218 | ELECTROMAGNETIC ACTUATING UNIT OF A HYDRAULIC DIRECTIONAL VALVE - An electromagnetic actuating unit of a hydraulic directional valve, which has an armature and a first and a second magnet yoke. The first and the second magnet yokes at least partially bind an armature space, the armature is arranged in the armature space so as to be axially displaceable, and the first and the second magnet yokes face each other in the axial direction of the armature. | 05-26-2011 |
