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WO/1981/000739A1 |
The present invention refers to the adapting of an internal combustion spark ignition engine to a multifuel engine having maximum thermodynamic efficiency possible with each particular fuel. The innovation consists in the variation of an...
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WO/1980/002584A1 |
An internal combustion machine in which radially aligned cylinders (3) are supported to collectively rotate about a first transverse axis and pistons commonly connected through a common rotor are supported to rotate about a second axis o...
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WO/1980/000095A1 |
In an otto cycle combustion engine the efficiency is increased and the exhaust gas pollution reduced by every working cylinder (2) having a precombustion chamber (23) into which fuel is injected. The volume of the precombustion chamber (...
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JP7450626B2 |
The present invention concerns a method for providing a variable compression ratio in a combustion engine, where the combustion chamber (9) is formed substantially by a piston bowl in the main piston (1), comprising a secondary piston (3...
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JP7425742B2 |
An internal combustion engine (1) for a vehicle is equipped with a variable compression ratio mechanism (2) capable of changing the mechanical compression ratio. An idle stop, which is for automatically stopping the internal combustion e...
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JP7381191B2 |
To reduce abnormal combustion due to a difference in composition ingredient of gas fuel.A compression ratio control device is intended to control an amount of supply of a working fluid for a variable compression device that enhances a co...
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JP2023151468A |
To provide a variable compression ratio device of an internal combustion engine that eliminates the need for a plurality of position adjustment mechanisms in a thrust direction of a control shaft, facilitates assembly work with a simple ...
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JP7348715B2 |
Provided is an engine system (1) including: a bypass pipe (bypass flow passage) (206) connecting an upstream side and a downstream side of the turbine on an exhaust flow passage; a bypass valve (216) configured to open and close the bypa...
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JP2023125369A |
To provide a compression ratio control device capable of inhibiting torque applied to a control gear shaft from becoming excessively large.A compression ratio control device includes: first determination means for determining a range of ...
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JP7334299B1 |
An object of the present invention is to reduce the amount of lubricating oil immediately before or at the start of changing the compression ratio until the amount of lubricating oil starts to increase, shorten the time required for warm...
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JP7325794B2 |
A balanced and rotating mechanism of an internal combustion engine, which combines adjustable variable compression ratio with long power and exhaust strokes and short intake and compression strokes to obtain an internal combustion engine...
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JP7324657B2 |
To quickly increase an output when increasing the output of an internal combustion engine accompanied by a change of a compression ratio.In an internal combustion engine control method for controlling an internal combustion engine (1) ha...
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JP2023104431A |
To perform reference position learning of a variable compression ratio mechanism without deteriorating startability.An internal combustion engine causes a first arm part 22 of a variable compression ratio mechanism 1 to abut on a high co...
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JP7316337B2 |
To provide oil supply to a variable compression ratio device.A variable compression ratio device includes: a gear shaft (52) which is coaxially arranged within a crank shaft (12) of an internal combustion engine (11) and rotationally dri...
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JP7309109B2 |
The engine system (100) includes: a variable compression device (6, 7 and 8) including a fluid chamber (R3) in which a piston rod (6) connected to a piston (4) is moved in a direction to increase a compression ratio by a pressurized work...
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JP7309110B2 |
An engine system includes a variable compression device having a fluid chamber to which a pressurized working fluid is supplied so that a piston rod connected to a piston is moved in a high compression ratio direction, a supply device th...
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JP7309115B2 |
To estimate a compression ratio accurately.An engine comprises: a compression ratio variable mechanism that displaces a top dead center position of a piston; a first sensor Sa that detects a first detection target, which is linked to the...
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JP7299122B2 |
To control energy required for putting an actuator into operation when increasing a compression ratio.While generating power through driving a power generation motor 1 with an internal combustion engine 2 capable of changing a compressio...
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JP2023086416A |
To improve performance aggravation of an engine, due to fluctuation of compression ratios of the engine, as needed.A manufacturing method of an ECU controlling an engine mounted with a plurality of cylinders comprises the steps of: ident...
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JP2023084098A |
To provide a large crosshead driven diesel engine in which cylinder pressure can be determined in a reliable manner.A large diesel engine includes: at least one cylinder 2 having a combustion chamber 4 that is defined by a piston 3 recip...
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JP2023082668A |
To provide a large engine hardly affected by knocking.In a large engine including at least one cylinder 1 in which a piston 3 is arranged for a reciprocating movement along a cylinder axis A between a top dead center position and a botto...
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JP7284694B2 |
An arm of this actuator has a first restraining part that comes into contact with one reduction-gear-side inner wall of an accommodating section, and a first offset part that is provided to the periphery of an insertion hole and offset f...
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JP2023069851A |
To provide a failure detection device and a failure detection method capable of determining failure of a cylinder inner pressure detection section or a rotating angle detection section in an internal combustion engine having a variable c...
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JP2023060819A |
To enable a continuous reliable operation of a VCR system.A piston 6 of an internal combustion engine is connected to a crosshead via a piston rod, and a crosshead is connected to a crankshaft via a connecting rod. A variable compression...
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JP2023059836A |
To provide a large-sized diesel engine capable of simply adjusting a compression ratio.A large-sized diesel engine has at least one cylinder 2 that has a combustion chamber 4 limited by a piston 3 capable of reciprocating along a cylinde...
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JP7251173B2 |
To reduce friction at a change of a compression ratio immediately after warmup.A housing 28 has a first space 61 in which a reduction gear 35 is accommodated, a second space 62 penetrated with a second control shaft 24, and a bulkhead 63...
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JP7236221B2 |
To provide a marine diesel engine capable of suppressing increase of thermal loss and improving fuel economy.In a marine diesel engine, a stroke bore ratio S/D is 4.4 or more. A rating of the marine diesel engine is selected from a range...
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JP2023016651A |
To dissolve unbalance in a cylinder core shaft right-angled direction on a control link side, in a mechanism dividing a connecting rod coupling a piston and a crank to vary a compression ratio.A large end of a piston rod 12 and a small e...
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JP7214980B2 |
To suppress deterioration in durability.A compression ratio variable mechanism V includes a first hydraulic chamber 168a formed between a piston and a piston rod or between the piston rod and a cross head pin 114a, a hydraulic pump P con...
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JP2023009686A |
To smoothly switch fuel.A dual fuel engine system includes: a dual fuel engine which uses liquid fuel and gas fuel; and a control device of the dual fuel engine, which adjusts, when switching the fuel of the dual fuel engine between the ...
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JP2023500949A |
The present invention relates to a variable length connecting rod (10), - a connecting rod head (102) designed to establish a pivot connection with the crankpin of the crankshaft, - for controlling the length of the connecting rod (10). ...
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JP7196408B2 |
A compression ratio control device (180) includes a compression ratio controller (182) configured to control a compression ratio of a combustion chamber (128) so that the maximum combustion pressure approaches a combustion pressure upper...
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JP7190319B2 |
In this actuator of a variable compression ratio mechanism for internal combustion engines, an arm link provided on a control shaft which is rotated by a drive source is housed in a housing section of a housing, and the housing section i...
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JP2022176752A |
To provide a control device of an internal combustion engine capable of suppressing degradation of combustion characteristics of the internal combustion engine in starting a catalyst warming-up process under a situation that the internal...
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JP7172536B2 |
To raise a compression ratio at a high load in order to further improve fuel economy, in a variable compression ratio internal combustion engine.An internal combustion engine 1 lowers a compression ratio at an engine high load, and raise...
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JP2022171794A |
To accurately control a compression ratio in an engine system having a variable compression device.An engine system is provided, including a variable compression device having a fluid chamber in which a piston rod connected to a piston i...
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JP7163946B2 |
To solve a problem that, when an engine mounted with a decompression device is started up, the decompression device in a process of being activated causes insufficient burning of an air-fuel mixture and releasing exhaust gas into the atm...
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JP2022162223A |
To provide a manufacturing method of a fastening structure capable of suppressing variation in shape, when connecting a pair of fastening members by each bolt in which fastening directions are mutually in reverse directions; and to provi...
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JP7156128B2 |
To enable optimal adjustment of a compression ratio.An engine device is equipped with a rotary piston type engine. The engine includes a cylindrical housing, a first piston member rotatably supported in the housing, and a second piston m...
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JP2022158889A |
To facilitate assembly work, and suppress partial contact between gears even when an inclination occurs between a gear shaft and a gear meshing with the gear shaft.A power transmission member has a shaft 55 with a gear 51 meshing with an...
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JP7154212B2 |
In a combustion chamber of a piston combustion engine there is a displaceable piston that can be moved progressively up or down between an upper and a lower turning position. The displacement takes place via an electrically controlled st...
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JP7151882B2 |
According to the present invention, a spark ignition internal combustion engine (1) is provided with a fuel injection valve (16) for injecting a fuel into a cylinder and performs lean combustion. This internal combustion engine (1) is pr...
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JP7143270B2 |
To provide an engine that can change the compression ratio.An engine includes a piston 15 capable of sliding in a cylinder. The piston 15 includes: a piston skirt 15b connected to a connecting rod; a piston crown 15a connected to a top d...
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JP2022139203A |
To provide a connecting rod capable of suppressing an unexpected change in length by holding the axial length of the connecting rod with a mechanical locking mechanism.A connecting rod includes: a crank-side connection member 13 connecte...
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JP2022137448A |
To provide an actuator of a variable compression ratio mechanism that can be controlled with high accuracy while reducing cost.In a variable compression ratio mechanism of an internal combustion engine according to the present invention,...
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JP7139702B2 |
Provided is a compression ratio varying mechanism, including a communication hole including: a first opening opened in an outer peripheral side surface of a piston rod; and a second opening, which is prevented from being opposed to the f...
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JP2022133595A |
To provide a controller of an actuator for an internal combustion engine capable of securing responsiveness at low temperature.A controller of an actuator for an internal combustion engine is configured such that when a temperature is lo...
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JP2022127465A |
To continuously and properly control a VCR mechanism even if a power supply is instantaneously interrupted, in a control device of the VCR mechanism, a control device of an internal combustion engine, and a control system.A control devic...
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JP7124571B2 |
To reduce vibration generating during an operation of a variable compression ratio internal combustion engine.A one end-side first groove 35 continued along a circumferential direction is formed on a part on which a compression load caus...
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JP7123923B2 |
A direct fuel injection engine including an ignition plug and a fuel injection valve arranged to be capable of injecting a fuel directly in a cylinder is controlled. The engine has a predetermined operation region in which an excess air ...
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