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WO/2021/074618A1 |
A method of operating an internal combustion engine comprises suspending injection of fuel into a cylinder during a stroke of its piston (2) from top dead centre (TDC) to bottom dead centre (BDC) and the following stroke from BDC back to...
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WO/2021/076698A1 |
An exhaust valve opening apparatus such as for an engine compression braking system includes a rocker shaft for supplying control fluid to an controllable valve and for distributing the control fluid to a primary and second piston arrang...
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WO/2021/055191A1 |
A system and method for mechanically timed cylinder deactivation includes an inner passage in the camshaft that supplies fluid for deactivating one or more valve opening mechanisms associated with the cylinders of an internal combustion ...
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WO/2021/052973A1 |
The present invention relates to a shift gate (10) for a sliding cam system, which shift gate has at least two shift grooves (11) for engagement of at least one actuator pin (20), the two shift grooves (11) extending against a direction ...
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WO/2021/047796A1 |
A valvetrain for an internal combustion engine includes a camshaft, an electromagnetic latch assembly, a rocker shaft, and a rocker arm assembly. The rocker arm assembly may include a cam follower configured to engage a cam mounted on th...
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WO/2021/047797A1 |
A rocker arm assembly for pivoting around a rocker shaft comprises a follower side arm, a valve side arm, and a latch assembly. The follower side arm comprises a main body (1016, 2016, 3016), a rocker shaft through-bore (1061), and a fol...
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WO/2021/032136A1 |
An engine valve actuating apparatus (100) includes a housing (210), the housing (210) including an activation piston bore (260) and an actuation piston bore (190); an activation piston (162) disposed in the activation piston bore (260); ...
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WO/2021/033691A1 |
In the present invention, Hall sensors (9u, 9v, 9w) output detection signals that show different voltage levels depending on the rotational position of a motor (4). A rotation signal generation section (26) of a drive circuit (22) genera...
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WO/2021/031230A1 |
An electric engine braking device. The electric engine braking device comprises a control mechanism (8) and an electric driving mechanism (9). The control mechanism (8) comprises a housing (81), an actuating plunger (82), and a sliding a...
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WO/2021/024186A1 |
An internal combustion engine comprises a plurality of cylinders, including at least one de-activatable cylinder having at least one deactivator assembly operatively connected to the at least one valve train for the de-activatable cylind...
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WO/2021/014427A1 |
In an embodiment, an internal combustion engine comprises a plurality of cylinders, each of the plurality of cylinders comprising at least one intake deactivator operatively connected to at least one intake valve and at least one exhaust...
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WO/2021/013718A1 |
The invention relates to a variable valve train (10) for switching an outlet valve (22) of an internal combustion engine to an engine braking mode. The variable valve train (10) has a camshaft (12) with a first cam (34), which is designe...
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WO/2021/008155A1 |
Disclosed are a hydraulic valve mechanism achieving the variable number of times of opening of a valve, and an internal combustion engine. The hydraulic valve mechanism comprises a housing (4), a valve cam (1) provided with a primary pro...
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WO/2021/006787A1 |
A control device (100) and method for controlling a compression release brake arrangement (10) is provided. The compression release brake arrangement comprises an exhaust valve actuator assembly (12), a first actuator valve (16) and a se...
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WO/2020/257213A1 |
A linear actuation assembly includes an electromagnetic coil configured to allow electric current to pass therethrough in either direction creating magnetic flux based on the electric current and its direction. A first set of magnets is ...
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WO/2020/253993A1 |
A rocker assembly for a type III center pivot valvetrain comprises a rocker arm comprising a cam end, a center pivot bore, and a valve end. The valve end comprises a first actuator bore and a second actuator bore. A cylinder deactivation...
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WO/2020/239259A1 |
A switching roller finger follower (SRFF) for valve actuation includes an outer arm (16), a first inner arm (12), a bearing axle (50) and a latch pin (26). The outer arm (16) is formed of a metal stamping, and is pivotally coupled to a m...
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WO/2020/241667A1 |
The present invention addresses the problem of providing an internal combustion engine valve lift adjusting device with which flexible valve lift control is possible, and with which it is also possible to solve problems such as the occup...
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WO/2020/240479A1 |
A switching finger may operate in two or three states or positions and cooperate with a single motion source to achieve methods of operating an engine in corresponding two or three modes. The modes may include cylinder deactivation, main...
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WO/2020/233508A1 |
An engine camshaft and a valve drive apparatus, the camshaft providing two adjacent cams (11a, 11b) for an intake or exhaust rocker arm, a flange (12) being disposed between the two cams (11a, 11b), the flange (12) being arranged in a pa...
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WO/2020/233835A1 |
A valvetrain includes a camshaft (501), a pivot (303), a rocker arm assembly (203) mounted on the pivot (303), a latch assembly (122), a power transfer module (100) a rocker arm (401), a cam follower (301) configured to engage a cam, and...
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WO/2020/229969A1 |
Systems for valve actuation in internal combustion engines provide configurations for hydraulic lash adjusters and valve actuation valvetrain components that are particularly suitable for prevention of HLA jacking in dedicated cam enviro...
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WO/2020/221477A1 |
A hydraulic system for a rocker arm assembly having an exhaust rocker arm configured to selectively open an engine valve includes a carrier assembly configured to couple to a cylinder head of an engine, a brake plunger assembly disposed ...
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WO/2020/216746A1 |
The present invention relates to a camshaft comprising a supporting shaft (1) and at least one sliding cam (2), wherein: the sliding cam (2) comprises a first cam (21) with a first cam contour and at least one second cam (22) with a seco...
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WO/2020/216474A1 |
A hydraulic capsule can comprise a hollow capsule body for setting the location of a plunger, a latch set alignable with a latch groove, and a latch-setting insert. The plunger can be configured to push the latch set towards the latch-se...
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WO/2020/211981A1 |
A valve train arrangement constructed in accordance to one example of the present teachings includes a rocker arm, a deactivating hydraulic lash adjuster (HLA) capsule, a lost motion spring (LMS) capsule and a lever. The rocker arm has a...
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WO/2020/209838A1 |
A system for timing a crankshaft and a camshaft in an internal combustion engine having a cylinder head structure with a timing pin hole and a camshaft cavity. The camshaft has a first opening that extends from an outer annular wall of a...
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WO/2020/202094A1 |
A control device for controlling the exhaust or intake valve of an internal-combustion engine; the control device (3) comprising : - a rocker arm (7), which is mounted so as to be rotatable about a first axis (A1) and can be coupled to a...
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WO/2020/193560A1 |
The invention relates to a slide cam system for an internal combustion engine having at least one camshaft (10) comprising a carrier shaft (11) having at least two slide cam elements (12a, 12b), each comprising a shifting gate (13) havin...
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WO/2020/189546A1 |
A variable valve device for an internal combustion engine comprises a variable mechanism capable of switching between a first state J1 and a second state, and a hydraulic control device that controls hydraulic pressure supplied to the va...
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WO/2020/182400A1 |
The invention relates to an electromagnetic actuator arrangement comprising an electromagnetic actuator device (2), in particular a camshaft adjusting device, having a housing (4) and at least one armature unit which can be driven, in re...
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WO/2020/177925A1 |
A rocker arm assembly includes a rocker arm configured to rotate about a rocker shaft and having a valve side end configured to selectively engage an engine valve, and a cam side end configured to be selectively engaged by a camshaft. A ...
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WO/2020/179820A1 |
This variable valve device for an internal combustion engine is provided with a variable mechanism, wherein the variable mechanism is provided with: first and second cams which are fixed to a cam shaft; first and second rocker arms; and ...
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WO/2020/178275A1 |
The invention relates to a camshaft (10) having a main shaft (11) and at least one sliding cam element (12) which is axially displaceably arranged on the main shaft (11), and at least one transmission element (13), which connects the sli...
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WO/2020/179762A1 |
This variable valve device for an internal combustion engine is provided with a variable mechanism that can be switched to a first state J1 and a second state, and an oil pressure control device for controlling an oil pressure supplied t...
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WO/2020/178266A1 |
The present invention relates to a camshaft (10) with a basic shaft (11) and with at least one sliding cam element (12), which is arranged in axially displaceable fashion on the basic shaft (11), and with at least one locking device (13)...
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WO/2020/179860A1 |
An adjustable mechanism is provided with first and second cams securely attached to a cam shaft, first and second locker arms, a pin for switching the connection state of the locker arms, and a connecting mechanism having a pin hole. In ...
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WO/2020/173607A1 |
A rocker arm assembly operable in an engine drive mode and at least one of a late intake valve closing (LIVC) mode and an internal exhaust gas recirculation (iEGR) mode, the rocker arm assembly selectively opening first and second engine...
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WO/2020/156603A1 |
The invention relates to a switch rod for switching at least one valve train component in an internal combustion engine, having a base body (1) and having a plurality of functional elements (2, 3) for transmitting a thrust force for swit...
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WO/2020/151924A1 |
A rocker arm assembly operable in a first mode and a second mode based on rotation of a cam shaft (264) includes a rocker shaft (234) and a first rocker arm assembly. The first rocker arm assembly receives the rocker shaft (234) and is c...
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WO/2020/150316A1 |
Systems and related methods include a rocker arm having integrated components, including a lost motion actuator piston and components for resetting the lost motion actuator piston to provide normal valve closing or late valve closing. Se...
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WO/2020/124554A1 |
A valve train, comprising: a housing (2), the housing (2) being provided with a through hole (20), an oil inlet channel (21), an oil drain channel (22) and an oil supplement channel (23), wherein the oil inlet channel (21), the oil drain...
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WO/2020/126102A1 |
A valvetrain includes a rocker arm assembly having a rocker arm and an electromagnetic latch assembly. An electromagnet of the latch assembly is housed within a chamber formed by the rocker arm. Passageways suitable for oil cooling of th...
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WO/2020/130446A1 |
The present invention relates to a valve control apparatus for an engine, wherein the valve control apparatus opens and closes an exhaust valve and an intake valve of the engine while rotating in conjunction with a crankshaft of the engi...
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WO/2020/126775A1 |
The present invention relates to a switchable actuation device (100) for a gas exchange valve. The switchable actuation device (100) comprises a two-piece rocker arm (10). Said rocker arm comprises a first rocker arm portion (1a), which ...
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WO/2020/125011A1 |
Disclosed is a valve bridge assembly (B) for an engine, the valve bridge assembly comprising a valve bridge body (4), wherein an inner side end of the valve bridge body (4) is provided with a main piston mounting hole (41), and a braking...
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WO/2020/118284A1 |
A valve actuation system comprises at least one main rocker arm operatively connected to a first engine valve, the at least one main rocker arm configured to receive at least main valve actuation motions. A second rocker arm is operative...
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WO/2020/118283A1 |
A valve actuation system for actuating at least one engine valve comprises a first half-rocker arm configured to receive main valve actuation motions from a main valve actuation motion source and a second rocker arm configured to actuate...
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WO/2020/118215A1 |
A switching finger follower for an engine valve train utilizes an adjustable support assembly that eliminates potential for partial engagement during operation. A lever engagement member or latch is disposed for movement on the follower ...
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WO/2020/109550A1 |
A type II valve train assembly that selectively opens first and second intake valves and first and second exhaust valves is provided. The valve train assembly includes an intake rocker arm assembly and an exhaust rocker arm assembly. The...
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