Patent application number | Description | Published |
20110114046 | INTERNAL COMBUSTION ENGINE COMPRISING AT LEAST ONE CAMSHAFT - An internal combustion engine, having at least one camshaft, which is mounted in the radial direction via at least one bearing block supplied with bearing fluid, wherein in the region of the bearing block, two sealing rings are provided, which are axially spaced apart from each other and which seal an annular chamber supplied with bearing fluid and located between the camshaft and the associated bearing block at least partially in the axial direction. | 05-19-2011 |
20120000436 | CAM AND ASSOCIATED CAMSHAFT - A cam for a camshaft of an internal combustion engine may include an axial extension with a holding contour for receiving a holding tool. | 01-05-2012 |
20120318224 | INTERNAL COMBUSTION ENGINE - An internal combustion engine may include at least one camshaft mounted via at least one bearing with at least one phase adjuster. The at least one bearing may be a rolling bearing. An oil feed ring may surround the camshaft adjacent to the rolling bearing, wherein the oil feed ring may have at least one external annular channel and at least one first radial bore aligned with a second radial bore in the camshaft. An outer diameter of the oil feed ring may be smaller than an outer diameter of the rolling bearing. An oil supply of the at least one phase adjuster may be introduced via an oil gallery defined in a cylinder head through the annular channel through the second radial bore into the camshaft. | 12-20-2012 |
20130019823 | CAMSHAFT AND ASSOCIATE MANUFACTURING METHOD - The invention relates to a camshaft for an internal combustion engine with a shaft and at least one cam joined therewith, which is connected via a joining surface on the cam side with a joining surface on the shaft side. The joining surface on the cam side and alternatively or additionally the joining surface on the shaft side may be constructed such that they have a predefined roughness. Hereby, the friction between the shaft and the cam can be increased. The invention further relates to a cam for such a camshaft and a method for the manufacture of such a camshaft or respectively of such a cam. | 01-24-2013 |
20130019824 | CAMSHAFT AND ASSOCIATED CAM - A camshaft for a combustion engine has a shaft and at least one cam thermally joined to a joining surface on the shaft side via a joining surface on the cam side. The shaft is embodied as a drawn and not additionally worked tube. Because of this the production of commercial vehicle camshafts can be realised in a more cost-effective manner since these do not have to be additionally ground or turned. | 01-24-2013 |
20130055981 | METHOD FOR A SIMPLIFIED AND ACCURATELY POSITIONED FIXING OF A CAMSHAFT MODULE ON A CYLINDER HEAD - The invention relates to a method for the simplified and accurately positioned fixing of a camshaft module with a camshaft and bearing blocks on a cylinder head. The bearing blocks, aligned in axial direction and with respect to an angle, may be fastened on the camshaft. The camshaft may be aligned via two alignment elements with respect to the cylinder head. Further, the individual bearing blocks may be screwed tightly with the cylinder head with simultaneous or interim rotation of the camshaft. | 03-07-2013 |
20130156359 | SHAFT/BEARING ARRANGEMENT - A shaft may have functional elements arranged thereon and at least one bearing point. At least one rolling bearing with rolling bodies may be arranged between the shaft and the at least one bearing point, the bearing having at least one rolling body cage configured to accommodate the rolling bodies and an outer ring. The rolling body cage may be fixed at least one of directly and indirectly to the shaft by a carrier ring and the outer ring may be fixed in the bearing point. The carrier ring may include the rolling body cage fixed thereon, the cage having a greater radial extent than the functional elements. The carrier ring may have a radial extent smaller than the greatest radial extent of one of the functional elements | 06-20-2013 |
20130276734 | INTERNAL COMBUSTION ENGINE - A camshaft may have an inner shaft and an outer shaft, each rotatable relative to the other. An adjusting device may include a first phase adjuster and a second phase adjuster. The outer shaft may be mounted in a stationary counter bearing adjacent to the adjusting device and the adjusting device may have a first phase adjuster and a second phase adjuster. The counter bearing may be designed as a slide bearing and oil supply to the phase adjusters may take place via the slide bearing. The slide bearing may have a first, second and third oil channel. The first oil channel may act on the first phase adjuster with corresponding oil flows, the second oil channel may act on the second phase adjuster with a first oil flow, and the third oil channel may act on the second phase adjuster with a second oil flow. | 10-24-2013 |
20140033998 | VARIABLE VALVE PHASING LIFT & DURATION - Various exemplary illustrations of a camshaft assembly for actuating valves of an engine are disclosed. The camshaft assembly may include a camshaft having a plurality of lobes, including at least one phase adjustable lobe configured to be selectively rotated with respect to the camshaft. The assembly may further include a hydraulic valve actuator in communication with a first lobe of the camshaft. The hydraulic valve actuator may be configured to selectively actuate at least one valve in communication with the hydraulic valve actuator in response to the at least one cam lobe. | 02-06-2014 |
20140165935 | CAMSHAFT - A camshaft of an internal combustion engine may include at least one function device connected therewith via a shaft-hub connection. The function device may include at least two different function elements each operable for different function | 06-19-2014 |
20140173895 | METHOD FOR THERMALLY JOINING NON-ROUND FUNCTIONAL COMPONENTS TO A SHAFT - A method may include thermally joining at least one of a non-round functional component to a shaft and a cam to a camshaft, elastically compressing the functional component during introduction of a round through-opening, and creating a through-opening which is not round when the functional component is unstressed and at least minimizes an asymmetrical deformation of the shaft after the thermal joining of the functional component to the shaft. | 06-26-2014 |
20140196552 | DEVICE FOR POSITIONING MULTIPLE FUNCTION ELEMENTS - A device for positioning multiple function elements having a recess for receiving a shaft in a predetermined angle position may include multiple mountings for receiving the function elements. The mountings may be equipped with a moulding establishing the predetermined angle position of the respective function element corresponding to the angle position on the shaft. The mountings may be positioned such that the recesses of the function elements lie on a common straight line. The mountings may be arranged vertically on top of one another so that the common straight line runs in vertical direction. A vertically moveable guide carriage for the shaft may be provided for joining the shaft with the function elements in vertical direction. | 07-17-2014 |
20140238321 | CAMSHAFT AND CORRESPONDING PRODUCTION METHOD - A camshaft for an internal combustion engine may include a shaft and at least one component that is joined to said shaft. The component may be connected via a joint surface of the component to a joint surface of the shaft. At least one of the joint surface of the component and the joint surface of the shaft may have a predefined roughness only partially on load-critical regions. | 08-28-2014 |
20140251037 | DEVICE FOR POSITIONING AT LEAST ONE FUNCTIONAL ELEMENT - A device for positioning at least one functional element having a hub for a shaft in a predefined angle position on the shaft includes at least one holder for receiving at least one functional element. The device may include a tailstock or coaxially aligning the shaft in relation to the hub of the at least one functional element. The tailstock may include a centring cone for receiving the shaft. The centring cone may be axially displaceable in relation to the tailstock. The tailstock may include radially expandable centring elements for centring the functional element. The centring elements may assume a defined position against the hub of the functional element in an extended position. The device may also include a movable guide block for moving the shaft. | 09-11-2014 |
20140299092 | BEARING FRAME OR CYLINDER HEAD COVER OF AN INTERNAL COMBUSTION ENGINE - A bearing frame or cylinder head cover of an internal combustion engine may include at least one camshaft mounted therein. The camshaft may be tunnel-mounted in at least two bearing openings arranged along a bearing channel. The bearing openings may enclose the camshaft. At least one axial bearing disc may be arranged on the camshaft. The bearing frame or cylinder head cover may have at least one recess which is open towards the camshaft. The at least one recess may be configured to circumferentially guide the axial bearing disc via two opposing axial bearing end faces of the axial bearing disc interacting with a side wall region of at least one side wall of the at least one recess, thereby forming an axial bearing for the camshaft. | 10-09-2014 |
20150027270 | ROLLER BEARING MOUNTED SHAFT - A roller-bearing mounted shaft may include a shaft tube having a shaft outer face with at least one rolling body running face. The shaft tube may have at least one functional element joined thermally thereto, wherein the shaft tube is formed as a welded and drawn tube and includes a carbon content of greater than 0.45 percent by mass. | 01-29-2015 |
20150075457 | CAMSHAFT MODULE AND CORRESPONDING PRODUCTION METHOD - A camshaft module may include a shaft and at least one functional element. The functional element may have a functional element opening through which the shaft passes. The functional element may be fixed to the shaft in a seat portion of the shaft. The camshaft module may include a bearing arrangement in which at least one bearing portion of the shaft is mounted. The shaft may include at least one adjusting portion axially adjacent to the at least one seat portion. The adjusting portion may have a first outer diameter smaller than a second outer diameter of the seat portion. The functional element opening may have an inner diameter smaller than the second outer diameter of the seat portion and larger than the first outer diameter of the adjusting portion such that a press fit fixing is realized between the functional element and the seat portion of the shaft. | 03-19-2015 |