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WO/2009/018991A1 |
The invention relates to a device for camshaft adjustment in an internal combustion engine, having a lifting profile element which is provided in a rotationally fixed manner on an axially movably mounted camshaft and which provides a con...
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WO/2009/018897A1 |
The invention relates to a switchable support device for a valve train of an internal combustion engine, comprising: an outer part (10) having a guide channel (12); an inner part (14) disposed at least over a longitudinal region inside t...
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WO/2009/019269A1 |
A device for actuating the decompression engine brake in an internal combustion engine provided with hydraulic tappets is described, characterized by: an additional rocker arm (9) for each cylinder, pivoting about an axis (4) common to t...
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WO/2009/013104A1 |
A switchable cup tappet (1) for a valve timing mechanism of an internal combustion engine is proposed, having a housing (3) which has a ring-like bottom (2) and from the outer edge (4) of which a skirt (5) protrudes and from the inner ed...
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WO/2009/011212A1 |
The oil pressure for a hydraulic actuator (60) of a variable valve train (52,54) is controlled in accordance with a duty value of a control signal for a hydraulic control valve (66,68). When predetermined inching control execution condit...
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WO/2009/011145A1 |
In an internal combustion engine having a conventional continuously variable valve lift mechanism, a pumping loss is not reduced even if a throttle valve is replaced and the engine separately requires a variable valve timing mechanism fo...
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WO/2009/003840A2 |
A cam follower (2) is proposed for a valve drive (1) of an internal combustion engine with a lifting disc valve (9), to the shaft end face (8) of which at least two different valve strokes can be applied via a contact face (7) of the cam...
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WO/2009/005774A1 |
A variable valve actuator (86) for a power system (5) is provided. The variable valve actuator may have a hydraulic piston (106) extendable to interrupt cyclical movement of an engine valve. The variable valve actuator may also have a pi...
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WO/2009/004162A2 |
The invention relates to a method for controlling a valve (13) in a thermal engine (10), the valve having a closed position and an opened position, the method comprising at least one step of opening the valve, said step including at leas...
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WO/2009/002234A1 |
In an exhaust valve mechanism for an internal combustion engine the main rocker arm is mounted on a rocker arm shaft for normal valve operation via a cam element. A secondary rocker arm is mounted on the shaft for activation of an exhaus...
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WO/2008/153191A2 |
A drive cam 22 opens or closes an intake valve 12 via a variable mechanism 26, a split-type rocking cam arm 38, and a valve actuating mechanism 68. The variable mechanism 26 varies a position of an intermediate roller 34 corresponding to...
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WO/2008/150585A1 |
There is provided a method for controlling engine valves of an internal combustion engine adapted to selectively operate at one of a first open position and a second open position, including controlling engine operation during a transiti...
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WO/2008/149316A2 |
A mechanical desmodromic fully variable valve actuation system capable for racing revs. Valve lift and valve duration continuously variable from a maximum to zero. Independently variable valve duration and valve lift.
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WO/2008/149538A1 |
A valve timing adjustment device has an electric motor (4) where magnetic holding torque (Th) and motor torque (Tm), which is generated by electric current, are generated on a motor shaft (102), an electric current flow control system (6...
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WO/2008/144686A1 |
A valve module for a combustion engine breathing system, and products and systems using the same.
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WO/2008/142554A1 |
An electronic control unit (60) performs maximum position learning by driving an actuator (50) to move a control shaft (340), and learning the position where stopping occurs because the cylinder head (20) contacts with the Hi end stopper...
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WO/2008/142555A2 |
A diagnostic method for a drive mechanism that is driven such that an actual drive state comes to match a target drive state which is variably set, determines that the drive mechanism is operating normally when it has been determined tha...
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WO/2008/142078A2 |
The invention relates to a method and a device for oil circuit management in an internal combustion engine using at least one hydraulic component. The aim of the invention is to further develop a method and a device of the aforementioned...
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WO/2008/142559A1 |
An internal combustion engine (1) includes a valve timing change mechanism (200) for change of the phase of an intake cam (32a), and a lift amount change mechanism (300) for change of lift amount by causing displacement of a control shaf...
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WO/2008/142516A1 |
A control apparatus for a valve operating system having a control shaft driven within a movable range between a first end and a second end, an actuator that drives the control shaft to change a valve characteristic of an internal combust...
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WO/2008/138776A1 |
The invention relates to a component (1) for a valve train of an internal combustion engine, the component being switchable to different strokes for a gas exchange valve, having at least one first and second element (2, 3), which are piv...
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WO/2008/139221A1 |
A mechanism for actuating a poppet valve (28) of an internal combustion engine, comprises two coaxially mounted cams (12,14), cam followers (18,20) in contact with the respective cams (12,14) mounted on a common summation lever (16) whic...
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WO/2008/140897A1 |
A phaser for an internal combustion engine with at least one camshaft with a housing, a rotor, a control valve, and an accumulator. The housing has an outer circumference for accepting a drive force. The rotor is connected to the camshaf...
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WO/2008/138583A1 |
The invention relates to a gas exchange valve actuation device having a spring unit (10) and a brake unit (11). According to the invention, the brake unit (11) has a unit provided for adjusting the spring force of the spring unit (10).
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WO/2008/131992A1 |
The invention relates to a three-dimensional valve gear (1) for an internal combustion engine with at least one cam shaft (3), which is constructed with one or more three-dimensional cams (2) and which is movable axially in a cam shaft a...
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WO/2008/128716A1 |
The invention relates to an engine brake comprising a braking unit (10) for controlling at least one gas exchange valve and particularly designed for integration in a cam-controlled gas exchange valve train. It is proposed that the braki...
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WO/2008/122477A1 |
The invention relates to a switchable valve train part (1) such as a bucket tappet, comprising a housing (2) in the bore (3) of which an inner element (4) runs that is axially movable relative to said bore, said inner element comprising ...
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WO/2008/116703A1 |
The invention relates to a valve drive (1a, 1b) of an internal combustion engine, comprising a reciprocating poppet valve (2) and a spring element (14) which impinges the closed reciprocating poppet valve with force against the action of...
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WO/2008/116710A1 |
The four-stroke reciprocating internal combustion engine comprises a crankcase and at least one cylinder arranged therein, a working piston being guided in the cylinder by a crankshaft, at least one cylinder head closing the cylinder, th...
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WO/2008/116704A1 |
The invention relates to a valve drive (1a,b) of an internal combustion engine, comprising a reciprocating poppet valve (11) that can be deactivated, a spring disk device (13a,b) having a spring disk (12a,b), said spring disk being movab...
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WO/2008/114626A1 |
A controller of variable valve actuator in which power consumption and rating of a motor can be reduced by reducing spring reaction during valve lift by the rotary inertial torque of a cam shaft. Before starting valve lift, the rotary in...
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WO/2008/114469A1 |
A valve gear (100) opens and closes the valve (2) of an internal combustion engine by driving the valve in the axial direction of the valve stem. A swing cam (10), which swings around a swing shaft (21c) in synchronism with the rotation ...
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WO/2008/115424A1 |
A system for actuating an engine valve is disclosed. The system may include a lost motion housing having two spaced collars surrounding a rocker shaft. The lost motion housing may include an internal hydraulic circuit connecting a master...
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WO/2008/110662A1 |
An attenuator (7) for damping pressure fluctuations in a hydraulic system, which attenuator comprises a body (8) with a chamber (9), in which a movable piston (10) loaded by a spring (11 ) is adapted, a fluid space (17) inside the chambe...
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WO/2008/110440A1 |
The invention relates to a switchable supporting element (1) for a valve train of an internal combustion engine, with a housing (2) which can be arranged above the outer casing (3) of the valve train in a seat of the internal combustion ...
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WO/2008/107111A1 |
The invention relates to a valve drive (1) for gas exchange valves of an internal combustion engine, comprising at least one camshaft (2) that is rotatably mounted in a housing of the internal combustion engine, at least one cam support ...
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WO/2008/107106A1 |
The invention relates to a valve drive (1) for gas exchange valves of an internal combustion engine, comprising a camshaft (2) that is rotatably mounted in a housing of the internal combustion engine, at least one cam support (3, 4) whic...
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WO/2008/101783A1 |
A switchable cup tappet (1) is proposed for a valve timing mechanism of an internal combustion engine, having a cup basic body (3) which has an annular base (2), which base (2) can be loaded by two large-lift cams which are spaced apart,...
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WO/2008/101784A1 |
A switchable cup tappet (1) is proposed for a valve timing mechanism of an internal combustion engine, having a cup basic body (3) which has an annular base (2), wherein a hollow-cylindrical projection (7) protrudes from an inner edge (6...
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WO/2008/099813A1 |
A port (11) is formed at a cylinder head (10) of an engine. The port (11) is opened and closed by a valve (15). A valve spring device (16) has a first spring (41) and a second spring (42). The second spring (42) is received in a housing ...
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WO/2008/098991A1 |
In a valve train of a reciprocating piston combustion engine, comprising cylinders controlled by at least three valves (1, 2) actuated by lobes (5, 6) of a camshaft (3; 4), wherein at least two valves (1; 2) operate equally in terms of f...
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WO/2008/100738A1 |
A multi-step valve actuation system is provided to selectively open a poppet valve of an internal combustion engine having a camshaft rotatably supported by a cylinder block. The multi-step valve actuation system includes a rocker arm op...
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WO/2008/092884A1 |
Proposed is a switchable bucket tappet (1) for a valve drive of an internal combustion engine, having a bucket base body (3) which has a ring-shaped base (2) and which can be guided by means of its skirt (5), which projects from the oute...
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WO/2008/089863A1 |
The invention relates to a valve gear for an internal combustion engine, comprising a camshaft (1) which can be rotated about a camshaft axis, is accommodated in a housing, preferably a cylinder head of the internal combustion engine, an...
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WO/2008/091302A1 |
An engine (20) that includes two intake and two exhaust valves (17, 18) for each cylinder (21) is equipped for single valve constant lift engine braking. The exhaust valves (17, 18) may be actuated in a conventional manner via a rotating...
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WO/2008/089864A1 |
The invention relates to an adjusting device (1) for adjusting a shaft, particularly a camshaft (2) of an internal combustion engine, which rotates about a camshaft axis (4) that is fixedly arranged in a housing (3), the adjustment being...
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WO/2008/090709A1 |
A variable valve gear for an internal combustion engine, in which the working angle of a valve is accurately adjusted by a simple structure. The variable valve gear has a control pin (48) inserted in a pin insertion hole (38) formed in a...
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WO/2008/088527A1 |
A valve actuation system (24) for an engine (12) is provided. The valve actuation system can include two or more engine cylinders (1-6), each cylinder having at least one intake valve configured to control air-flow into each of the two o...
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WO2007122563B1 |
To improve the precision of the control of the charge of a cylinder during idling and low revs / light load operation, a bypass feeding path of low flow capacity provides the cylinder with air or mixture while the high flow capacity inta...
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WO/2008/078756A1 |
A brushless motor (47) for a variable valve mechanism (14) can change characteristics of an intake valve (9) of an engine (1). Position sensors (S4, S5) output pulse signals as the brushless motor (47) rotates. A position counter (P) cou...
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