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JP2013160139A |
To prevent a valve guide from falling out, to prevent a cylinder head from being worn, to improve durability of components, to reduce costs by reducing man-hours for working and assembly, to make an engine compact and lightweight by redu...
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JP5253132B2 |
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JP5253131B2 |
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JP5228223B2 |
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JP5224596B2 |
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JP5228224B2 |
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JP5229835B2 |
A spring structure (20) includes a clockwise spring (21) and a counterclockwise spring (22) that are coaxially arranged under a state in which a spring seat (23) is interposed between a lower end portion of the clockwise spring (21) and ...
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JP5218102B2 |
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JP5222938B2 |
Actuators, and corresponding methods and systems for controlling such actuators, provide independent valve control with a large initial or opening force. In an exemplary embodiment, an actuator includes a driver further including a housi...
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JP5218671B2 |
An intake apparatus 10 of an engine 1 includes: a first intake passage 11 supplying fresh air to a cylinder 2; a second intake passage 12 arranged near the first intake passage 11, and supplying fresh air to the cylinder 2; a first intak...
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JP2013119837A |
To regulate heat transfer substantially without sacrificing durability with respect to a valve seat fixed with fitting around an opening of an air intake or an exhaust air port facing a combustion chamber.A proposed heat transfer regulat...
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JP5208647B2 |
A production method for a sintered valve guide includes preparing a raw powder which is primarily made of an iron powder and which includes at least a copper alloy powder and a graphite powder. The production method further includes comp...
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JP5205570B2 |
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JP5202024B2 |
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JP2013104409A |
To provide a heating device for an engine valve which can secure reliability while saving the number of wirings.The heating device 100A for the engine valve includes: a piezoelectric element 2, which is a power generator; a weight 3, whi...
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JP2013092150A |
To provide a surface hardening method for coating a surface of an engine component with an alloy layer having excellent wear resistance to improve a component life.In the surface hardening method for a valve seat of a cast-iron cylinder ...
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JP5199444B1 |
To provide a heat engine capable of lessening output loss caused by valve driving in a simple structure.A heat engine includes a hollow rod-shaped valve shaft (25) attached to a conical pointed end of a hollow conical valve (1), an intak...
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JP2013083157A |
To provide a valve operation state sensing device for an internal combustion engine capable of sensing the operation state of the engine valve before cranking.The device comprises a swing cam 17 for opening/closing two intake valves 2 pe...
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JP2013515912A |
A heat engine includes structure for compressing a cooled working gas, heating the compressed working gas using an external heat source, expanding the heated compressed working gas, cooling the working gas using a heat exchanger with a c...
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JP5192975B2 |
To provide a cylinder head for an engine equipped with an internal EGR mechanism providing a desired EGR amount while suppressing costs. A valve seat 72 closing an exhaust port by the seating of an umbrella part 44b of an exhaust valve 4...
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JP2013072390A |
To suppress reduction of an effective opening area at early stages of opening an intake valve while enhancing an air flow from a region on the opposite side of a region adjacent to an exhaust port toward into a combustion chamber in an i...
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JP5183630B2 |
A four-cycle engine including a blowdown pressure wave supercharging system (40) compressing and supplying exhaust gas into a second cylinder (#1) by causing a pressure wave (blowdown pressure wave) from a combustion chamber at opening o...
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JP5186490B2 |
The invention relates to a lightweight cylinder head (1) for an internal combustion engine, comprising at least one cast piece (4) that is cast into an external structure (2), the external structure (2) and the cast piece (4) being made ...
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JP5169744B2 |
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JP5165016B2 |
The invention concerns a valve controlling device with linear displacement along an axis comprising a number of actuators equal to that of the valves. Each actuator has a ferromagnetic blade fixed to a valve push rod and at least a retur...
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JP5162112B2 |
It is described a gasket (18) for a valve (12) of an internal combustion engine (1) comprising a supporting element (26) having a tubular conformation according to an axis (B), and an elastically deformable element (25) adapted to be arr...
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JP2013044287A |
To efficiently manufacture a hollow valve with a hollow axis part in an extremely easy manner at a low cost.This method for manufacturing a hollow engine valve includes steps for forming material that has an upward-open bottomed hole at ...
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JP5148451B2 |
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JP5148609B2 |
OBJECT OF THE INVENTION: The invention provides a low-cost hollow poppet valve comprising a thin cap portion welded to a thin fillet portion. The poppet valve has a superb weight versus strength characteristic and a good heat resisting c...
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JP5148449B2 |
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JP5144139B2 |
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JP5145075B2 |
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JP2013024113A |
To achieve an operation for enabling a demerit caused by encapsulating a coolant to be successfully avoided while bringing out a merit caused by encapsulating the coolant into a cavity formed inside an air intake valve, in an internal co...
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JP2013019379A |
To perform efficient valve cooling by making circulation of engine oil in a valve good, and controlling heat exchange of the engine oil before and after valve cooling in a valve cooling device of an internal combustion engine.In the valv...
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JP5123947B2 |
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JP2013011265A |
To solve problems with the heat efficiency of a gas engine and gasoline engine, the reduction of pollution caused by an exhaust gas, and soot and dust discharged from a direct injection diesel engine, by improving a mixing and vaporizing...
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JP2013007270A |
To provide a port for an internal combustion engine that can properly form, in a combustion chamber, a swirl flow of gas introduced into the combustion chamber with consideration of both a flow of gas toward the inside from the outside o...
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JP5111009B2 |
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JP5100377B2 |
A coil spring reduces Hertzian stress on a first turn and bending stress on a coil end. A coil end 11 is shifted in a diametral outer or inner direction of a coil spring relative to the first turn 13, to form a vertical gap between the c...
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JP2012246885A |
To provide a port of an internal combustion engine that can maximally obtain desired port characteristics even if there are variations in respective components configuring the port of the internal combustion engine.The port 31 makes an i...
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JP2012246932A |
To provide a gas exchange valve of a combustion engine, particularly a diesel combustion engine including a poppet valve having a valve rod and a valve element.The valve rod is linearly movably guided in a through-hole of a valve rod gui...
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JP5093256B2 |
A valve timing adjuster adjusts timing of opening and closing an intake valve or an exhaust valve by changing a phase between a drive shaft and a driven shaft. The valve timing adjuster includes a housing, a vane rotor, an urging member,...
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JP2012237312A |
To provide a method for manufacturing a hollow engine valve capable of reducing cost by eliminating the need for a sealing material such as a filler piece and reducing man-hours.A hollow hole 16 extending from one end side in the axial d...
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JP5083428B2 |
To provide an internal combustion engine capable of making suction air flow into a cylinder so as to generate a tumble flow having a swirl component. The internal combustion engine 300 includes a plurality of suction valves per one cylin...
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JP5079381B2 |
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JP5073628B2 |
A large-diameter-side end surface (104a) of a cotter (104) can be supported by a cotter holder (32) from below through inserting a shaft member (102) along an inner periphery of the cotter (104) from above the cotter (104). In this state...
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JP2012219689A |
To provide a valve gear for an internal combustion engine, improved to certainly restrict operation of a valve when required while avoiding unnecessary restriction on operation of an exhaust valve and an intake valve.The restriction on t...
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JP2012211593A |
To provide a simple gasket for a valve of an internal combustion engine having a cost reduction effect.The gasket (18) includes a tubular support element (26) on an axis (B), and an elastically deformable element (25) installed between a...
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JP5064138B2 |
A valve spring device is provided with a first coil spring and a second coil spring combined in series with each other. The inside diameter (coil inside diameter) of the second coil spring is greater than the outside diameter (coil outsi...
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JP5061310B2 |
Provided is a plasma apparatus using a valve, which comprises a discharge device with an electrode exposed to the combustion chamber installed in a cylinder head, an antenna installed on the valve face of a valve head, an electromagnetic...
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