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JP2023550128A |
A system for controlling operation of an engine valve includes a pivot and a torsion spring having first and second legs and operably connected to the pivot. A lever arm is adjustably secured to the pivot and extends away from the pivot ...
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JP7389752B2 |
The present invention provides for Variable Valve Actuation comprising a cam, a valve suitable to displace between a closed position and an open condition caused by said cam, and further comprising a main rocker arm suitable to swing ove...
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JP2023167480A |
To properly restore suction/exhaust timings of a dynamic valve mechanism even if an engine is reversely rotating due to some reason.A camshaft drive gear mounted to an engine in one embodiment of the present disclosure includes: a drive-...
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JP2023549380A |
Systems for valve actuation in internal combustion engines provide a rocker control component in the form of a biasing mechanism for biasing the valve side of the lost motion rocker toward the engine valve. This may prevent gaps in the v...
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JP2023548815A |
The switchable rocker arm (1, 2, 3, 4) may include a body (10, 11) configured to rotate about a rocker shaft. The body can include a valve end (102) and a cam end (103) that includes piston holes (135, 136). The second body (21, 22, 23, ...
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JP7383016B2 |
Variable-length assemblies, including lost motion assemblies eliminate hydraulic or pneumatic working fluids for operation in internal combustion engine valve trains and may be integrated into valve rocker arm pivots. An example piston a...
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JP7377020B2 |
Actuator (4) for automotive applications, comprising:- a main body (8) housing motor means (12), transmission means (16), a control shaft (20), kinematically connected to said motor means (12) by means of said transmission means (16),- w...
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JP2023546864A |
The latch assembly (500) includes a primary latch pin assembly (531, 532) having a first major pin surface (512, 522) having a first diameter (D1) and a secondary piston surface (543, 563) having a first diameter (D1). A secondary latch ...
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JP7369613B2 |
A variable valve mechanism includes: a cam that rotates about a rotating shaft in association with rotation of a crank shaft of an engine; a swinging arm that is disposed between the cam and a valve and is pushed by the rotating cam to s...
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JP7368281B2 |
To prevent a change in valve opening timing and valve closing timing when an operational angle and a lift amount are changed.A variable valve mechanism of an internal combustion engine includes: a main cam 1; a second arm 10 in which a v...
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JP7368593B2 |
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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JP2023154209A |
To suppress noise when switching a valve lift amount, and improve durability.A variable valve device (20) can change a valve lift amount in a cylinder head. The variable valve device is provided with a camshaft (21) on which a plurality ...
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JP7354645B2 |
To provide a cam switching mechanism and an internal combustion engine capable of suppressing pumping loss.An intake side cam switching mechanism 4 comprises a first cam 42a and a second cam 42b that open and close an intake valve 25a, w...
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JP7351606B2 |
The present disclosure relates to a variable valve train for an internal combustion engine. The variable valve train has a camshaft with a cam and a rocker arm for activating at least one gas exchange valve of the internal combustion eng...
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JP2023539469A |
A valve actuation device (100) for actuating a valve of a reciprocating piston engine, comprising a first rocker arm (210) and a second rocker arm (211) rotatably attached around a common rotation axis (213). ), a push rod (220) connecte...
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JP2023539350A |
Provides a highly efficient multi-stage brake mechanism. The device includes a housing, a plunger sleeve disposed on the housing and fixed or reciprocating with respect to the housing, a plunger disposed on the plunger sleeve and recipro...
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JP2023538089A |
The present invention is for a valve of a reciprocating piston engine having a coupling device (10) with a locking element (13B) which can be brought into a first position and a second position by means of a mechanical switching device (...
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JP2023115415A |
To improve the exhaust performance of an internal combustion engine of a hybrid vehicle.A hybrid vehicle 1 includes: an electric power train 3; a first coolant path 5 for cooling a part of a cylinder head 4 of an internal combustion engi...
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JP7317713B2 |
The invention relates to a valve actuating device for actuating at least one valve of a reciprocating-piston engine, in particular of an internal combustion engine, with variable valve lift, having: a first rocker lever part with a pivot...
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JP7314396B2 |
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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JP7302018B2 |
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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JP7297896B2 |
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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JP2023085549A |
To provide a valve actuation system including rocker arms and a collapsing mechanism.A valve actuation system includes a first half-rocker arm, a second rocker arm, and a collapsing mechanism having a plunger and a mechanical locking mec...
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JP7293961B2 |
To provide a valve gear of an internal combustion engine having a plurality of cam lobes having different cam shapes in which the durability and silence of a mechanism for switching cam lobes are improved.A valve gear (1) of an internal ...
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JP2023525208A |
A type of fully variable tappet is disclosed. Including fixed body, active plunger, return spring, driven plunger, active plunger and driven plunger slip fit with fixed body respectively, fixed body comes with active oil chamber and driv...
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JP7291787B2 |
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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JP2023080998A |
To prevent an intake valve from opening after an operation to stop an internal combustion engine is performed.A valve opening/closing mechanism opens and closes an intake valve 12 of an internal combustion engine according to rotation of...
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JP2023523753A |
A valve bridge system comprises a valve bridge body configured to extend between at least two engine valves of an internal combustion engine. The valve bridge body includes a throughbore configured to align with the first engine valve an...
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JP7288552B2 |
The objective of the present invention is to suppress vibrations during startup of an internal combustion engine, and to suppress misfire. The crank angle at which an intake valve starts to open is defined as a valve-opening start angle,...
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JP7286940B2 |
To provide a rocker arm slide structure in a rocker arm type valve mechanism having a decompression device.A decompression device 41 in a valve mechanism includes a decompression holder 45 rotatably holding a decompression shaft 42 withi...
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JP2023523433A |
A valve actuation system comprising a valve actuation motion source configured to provide primary event valve actuation motion to at least one engine valve via a primary motion load path comprising at least one valve train component. The...
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JP2023071902A |
To provide a compact module-type lost motion variable valve driving assembly.A compact module-type lost motion variable valve driving assembly includes a dry start hydraulic circuit 700 to enable quick priming of a lost motion master-sla...
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JP7272251B2 |
An internal combustion engine includes: a fuel injection valve injecting fuel; an intake timing varying mechanism controlling the opening/closing of an intake valve provided at an intake port; and an exhaust timing varying mechanism cont...
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JP7265010B2 |
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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JP2023056614A |
To eliminate necessity of providing an oil passage for a changeover pin actuation in a cylinder head.A variable valve mechanism of an internal combustion engine includes: an input arm 20 that is oscillated by being pressed by a cam; an o...
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JP2023514362A |
A valve actuation system is operatively connected to a first source of valve actuation motion, a first motion transmission mechanism operably connected to the at least one engine valve, and a second source of valve actuation motion. and ...
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JP7250144B2 |
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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JP7250045B2 |
Systems for valve actuation in internal combustion engines provide configurations for collapsing valve train components, particularly collapsing valve bridges. Various configurations for locking a bridge piston to a bridge housing includ...
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JP7227979B2 |
Systems for valve actuation in internal combustion engines with a dedicated rocker for actuating the at least one of two or more engine valves in a braking operation may include a biasing component, such as a compression spring, tension ...
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JP7225667B2 |
To reduce the number of part items of a decompression device, or to reduce the weight of the decompression device.In a decompression device 31, there are arranged: a decompression cam 32 arranged in an accommodation recess 25 which is fo...
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JP2023022854A |
To satisfy both a demand in a scene where it is desired to raise exhaust gas temperature and a demand in a scene where it is desired to suppress a rise in the exhaust gas temperature.A vehicle 1 has a variable exhaust valve gear 52 that ...
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JP7215868B2 |
A continuous variable valve duration apparatus may include: a camshaft; a cam unit on which a cam is formed, and the camshaft inserted to the cam; an inner wheel for transmitting rotation of the camshaft to the cam unit; a wheel housing ...
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JP7211302B2 |
Hall sensors respectively output a measurement signal, a voltage level of which changes according to a rotation position of an electric motor. A rotation signal generator of a drive circuit generates a rotation speed signal and a rotatio...
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JP2023011129A |
To reduce a contact surface pressure between a groove wall surface of a cam rail and a pin to reduce wear and improve the durability.A variable valve train for an internal combustion engine uses, for a variable valve, relative displaceme...
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JP2023005734A |
To switch a connection state and a release state of a plurality of locker arms by a simple constitution even if resilient springs are not arranged at the locker arms.A variable valve device (20) comprises: a plurality of locker arms (31,...
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JP7198365B2 |
A valve bridge system comprises a valve bridge configured to extend between at least two engine valves of an internal combustion engine. In one embodiment, a valve bridge guide is operatively connected to the valve bridge and configured ...
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JP7195784B2 |
The disclosure concerns a variable valve train for an internal combustion engine, comprising a camshaft, a gas exchange valve and a cam carrier. The cam carrier is arranged rotationally fixedly and axially displaceably on the camshaft an...
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JP7182687B2 |
A combined dedicated braking and EEVO lost motion valve actuation systems for internal combustion engines provide subsystems for braking events and EEVO events on one or more cylinders. Various control strategies may utilize braking and ...
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JP2022170617A |
To provide a variable valve mechanism that allows intersection of a low-lift profile and a high-lift profile.A variable valve mechanism comprises: a low-input arm 5 in which a low cam 2 of a low-lift profile and a high cam 3 of a high-li...
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JP7168381B2 |
To simplify and trim weight the structure in a valve lift amount variable type valve gear having a plurality of unit cam parts the height of which is different.On one external cylinder constituting a cam shaft 1, cam part units 5a, 5b, a...
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