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WO/1999/025970A1 |
The present invention is directed to a valve actuation system for an internal combustion engine. The valve actuation system includes an intake valve actuation assembly for operating at least one intake valve in response to an intake cam....
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WO/1999/023363A1 |
A lost motion valve actuation system utilizing a single solenoid valve (105) or trigger valve (80) to vary the timing of the intake (26) and exhaust (56) valves for a cylinder of an internal combustion engine. The solenoid controls the o...
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WO/1999/023378A1 |
A lost motion valve actuation system for an internal combustion engine is disclosed. The system includes a motion feedback system (100) for detecting the motion and timing of a valve actuator (130) and an engine valve (140). By providing...
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WO/1999/019614A1 |
A valve actuating assembly (100) for actuating at least one valve is disclosed. The valve actuating assembly includes a housing assembly (150), an actuating assembly for actuating at least one valve during a first valve operating event, ...
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WO/1999/018340A1 |
The present invention is a coaxial master piston (100) for use in providing hydraulic fluid to effectuate a compression release braking function (10), and hydraulic fluid to effectuate an exhaust gas recirculation (EGR) function (20). In...
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WO/1999/017004A1 |
A tappet (1) designed to be coupled to different lifts of at least one gas exchange valve consists of an outer annular section (2) which concentrically encloses a circular section (3). Both sections (2, 3) are axially movable relative to...
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WO1998053185A9 |
The invention relates to a cam follower (1) for a valve gear in an internal combustion engine, wherein said follower is designed to change over a gas exchange valve at different strokes. The inventive device consists of sections (3, 4) w...
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WO/1999/010631A1 |
Internal combustion engine with compressor function, comprising, in at least one engine cylinder (21), an extra exhaust valve operated by a hydraulic plunger cylinder device (35, 36). The engine has a fuel system with a unit injector (5)...
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WO/1999/010629A2 |
The present invention provides a hydraulic actuator (10) for operating an engine valve (400), which includes a control element (300) for controlling the seating velocity of the valve. The design allows for free, unrestricted movement of ...
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WO/1999/009303A1 |
The invention concerns a method for adjusting the lifting of an internal combustion engine induction valve at full throttle opening. In case full throttle opening is required, an adapting function is triggered for adjusting the valve lif...
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WO/1999/006678A1 |
The invention relates to a valve control system for an internal combustion engine which can be switched into a drive or brake mode, comprising both a brake-camshaft and a main camshaft acting upon the exhaust valves. The aim of the inven...
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WO/1999/004143A1 |
The invention relates to a housing (1) for an engageable and disengageable device for adjusting or balancing the valve play of an internal combustion engine. Said housing is configured as a single piece part with a sleeve-shaped interior...
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WO/1999/004144A1 |
An internal combustion engine may include a hydraulic linkage used to transfer motion from a valve train element, such as a cam, to an engine valve (200). Method and apparatus for selectively limiting the motion transferred by the hydrau...
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WO/1998/049429A1 |
A method is described for manufacturing a multi-component camshaft assembly having an internal mechanism for enabling relative angular movement of individual cams of the assembly. In the invention, the cam surfaces are machined after the...
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WO/1998/042961A1 |
The invention relates to a valve gear for gas exchange valves of internal combustion engines, comprising a cam shaft (1). The cam (2) of this cam shaft (1) acts upon a valve shank (8) of a gas exchange valve via a bucket tappet (6) posit...
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WO/1998/041743A1 |
The invention relates to a support element (1) which is produced in such a way that it can be shut-off from the cam stroke. Said support element has a coupling element (9) manufactured in the form of a piston and which runs radially. To ...
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WO/1998/037315A1 |
An operating mechanism (10) for a valve (12) comprises a cam (40) mounted for rotation about an axis (42) thereof, a rocker (50) having an abutment surface (70) which is movable to operate said valve, and a follower (80) mounted for pivo...
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WO/1998/036157A1 |
An apparatus for adjusting the motion characteristics of a valve of an engine, comprising an adjustment means to vary the valve opening and closing angle, or the valve lift including a guide element movable from a first position to a sec...
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WO/1998/036161A1 |
A tappet (1) for a valve gear of an internal combustion engine is switchably designed for different valve lifts, comprising an outer, circular segment (5) surrounding a circular segment (6). Both sections (5,6) are impinged upon by cams ...
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WO/1998/034021A1 |
A method and apparatus for carrying out a variable timing exhaust gas recirculation is disclosed for use during both positive power and retarding operation of an internal combustion engine. Motion or energy is derived from an engine comp...
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WO/1998/034014A1 |
A multi-cylinder Diesel engine, for trucks, particularly of the type supercharged by a turbo-supercharger actuated by the exhaust gases, is provided with a variable valve actuation system for actuating the intake and exhaust valves, whic...
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WO/1998/032962A1 |
An exhaust gas recirculation master piston (12) is actuated by an intake rocker arm (10), and a slave piston (14) adapted to follow the master piston opens an exhaust valve (4) of the same cylinder (1) in a suction stroke, so that a pres...
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WO/1998/032961A1 |
An exhaust gas recirculation master piston (12) is actuated by an intake rocker arm (10), and a slave piston (14) adapted to follow the master piston opens an exhaust valve (4) of the same cylinder (1) in a suction stroke, so that a pres...
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WO/1998/030788A1 |
A centrifugally-responsive compression release apparatus relieves compression in more than one cylinder of an internal combustion engine during starting. The compression release apparatus utilizes a centrifugally-responsive, flyweight (2...
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WO/1998/027320A1 |
The invention concerns a cam follower (1) comprising an annular portion (2) which concentrically surrounds a circular portion (5). Both portions (2, 5) can be acted upon by cams of different strokes and alternatively coupled to one anoth...
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WO/1998/026161A2 |
The invention relates to a camshaft for an internal combustion engine, having a carrier wave (1) and radial cam areas (2), in which only the eccentric valve control surface (4) is included on a cam element (5) as opposed to the closing p...
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WO/1998/022699A1 |
Tappet (1) for a valve gear of an internal combustion engine consisting of an external ring-shaped segment (2) which encloses concentrically a circular segment (3). Both segments (2, 3) are impinged upon by lifters (5, 7) having differen...
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WO/1998/016726A1 |
A tappet (1) has a ring-shaped section (2) which concentrically encloses a circular section (5). Both sections (2, 5) can be actuated by cams (4, 7) having different strokes and be selectively coupled to one another by radially displacea...
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WO/1998/011330A1 |
Automatic decompression system for an internal combustion engine, especially a one-cylinder diesel engine with at least one output and input valve controlled by a camshaft (20) with at least one cam wherein the output valve is lifted in ...
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WO/1998/007965A1 |
An internal combustion engine lost motion valve actuation system is disclosed. The system (10) includes a variable length connection system (100) connecting a force imparting system (200) and an engine valve (300). The connection system ...
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WO/1998/003777A1 |
An internal combustion engine has engine cylinder intake and exhaust valves that are operated by intake and exhaust cams via hydraulic linkages. The hydraulic linkages have selective lost motions that allow selective modification of the ...
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WO/1998/003778A1 |
The invention concerns a valve drive system for an internal combustion engine, the valve drive system being provided between its at least one lifting valve (12) and its camshaft (34) in order to control the variable lift sequence. The va...
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WO/1997/039222A1 |
A variable valve timing system applicable for vary the opening and closing cycle of the inlet and outlet valves of an internal combustion engine. The system comprises a cam follower (4) and a cam (1) which is rotated about the cam shaft ...
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WO/1997/037108A1 |
A valve gear mechanism (1) for gas exchange valves (2)is capable of being switched between different valve lifts. For each gas exchange valve (2) the valve gear mechanism (1) has two separate cam followers (4, 5) with a common swivelling...
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WO/1997/033076A1 |
A valve drive with a rocker arm (1) is provided with coupling means (13) to switch off a gas exchange valve. The coupling means (13) can be hydraulically actuated against the force of a spring (15) by an oil supply (20) of a hydraulic va...
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WO/1997/029272A1 |
A device in a reciprocating-piston internal combustion engine for altering the rotary positions of at least one camshaft (5) in relation to a crankshaft (6) has a hydraulic cylinder (4). Said hydraulic cylinder (4) has a supply device (7...
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WO/1997/026447A1 |
A method and apparatus for controlling a valve mechanism of an engine, in which two stage control at engine start and during high-speed running simplifies its construction, ill start in high power engines is avoided, white smoke exhauste...
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WO/1997/026446A1 |
The invention concerns a tappet (1) which is designed such that it can be used with different cam strokes. According to the invention, in order that the tappet coupling means (10) in the cam base circle are supplied with hydraulic fluid ...
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WO/1997/021910A1 |
The invention relates to means for the actuation of valves on a reciprocating engine with a variable valve lift, in particular a reciprocating internal combustion engine, with at least one camshaft (1). Each cam (2) acts on a lever arran...
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WO/1997/013063A1 |
A control device for an internal combustion engine comprising fuel injection control means for controlling the amount of fuel that is injected from a fuel supply device for supplying fuel to an internal combustion engine and fuel injecti...
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WO/1997/012127A1 |
A method of controlling a four stroke internal combustion engine having at least one combustion chamber, the or each combustion chamber having at least one exhaust valve, the method including varying the timing of the closure of the or e...
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WO/1997/006355A1 |
An internal combustion engine has electrically controlled hydraulic linkages (64) between engine cams (40) and engine cylinder valves (30). If it is desired to skip a cam lobe (42a, 42b, 42c) or to modify the response of an engine cylind...
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WO/1997/006354A1 |
An inernal combustion engine (10) has engine cylinder intake and exhaust valves (30, 60) that are operated by intake and exhaust cams (40, 70) via hydraulic linkages (54, 84). The hydraulic linkages (54, 84) have selective lost motion th...
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WO/1997/006357A1 |
In a device (1) for the optional actuation of at least one gas exchange valve consisting of two sections (2, 3) which can be connected as desired via radially movable connecting means (7), the return of the hydraulic fluid applied to the...
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WO/1997/001696A1 |
A ceramic sliding member that can prevent the abnormal or uneven wear of a mating metal sliding part even if oil polluted by exhaust gas components is used, characterized in that a silicon nitride material of a sliding surface material a...
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WO/1996/039575A1 |
A control for operating an engine (30) in a braking mode of operation includes an actuator (110) engageable with an engine exhaust valve (40). A braking magnitude is selected from a continuous range of braking magnitudes between minimum ...
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WO/1996/039573A1 |
A braking control for an engine permits the timing and duration of exhaust valve opening events to be accurately determined independent of engine events so that braking power can be precisely controlled. According to one embodiment, furt...
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WO/1996/039572A1 |
A braking control for an engine permits the timing and duration of exhaust valve opening to be accurately determined independent of engine events so that braking power can be precisely controlled.
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WO/1996/039574A1 |
A braking control for an engine permits the timing and duration of exhaust valve opening to be accurately determined independent of engine events so that braking power can be precisely controlled.
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WO/1996/035861A1 |
A compression braking system (2) is provided which controllably opens one inlet valve (10) and one outlet valve (12) in response to the actuation of the injector unit rocker arm (22). This braking system (2) thereby is useful on four cyc...
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