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JP2014231757A |
To provide a valve for an internal combustion engine that can improve the output and fuel economy of the internal combustion engine.A valve for an internal combustion engine comprises: a valve body 51 for opening/closing a port 30; a ste...
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JP5625967B2 |
An intake valve of an internal combustion engine includes a valve body and a valve stem extending from a central portion of the valve body. The valve body includes a valve body framework portion and a valve body thick portion provided on...
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JP5629463B2 |
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JP5625690B2 |
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JP5627872B2 |
The portable sealing body comprises a sealing area subjecting on a valve seat ring. The sealing body exposes hot gases. A surface area of the sealing body consists of first and second materials (1, 2) directly on the sealing area of the ...
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JP2014214670A |
To provide a cylinder head of an internal combustion engine that can enhance tumble by controlling an air flow entering the interior of a cylinder from a suction port from being directed downward when a center line direction of the cylin...
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JP5623917B2 |
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JP5624807B2 |
To provide a method for monitoring the state of an internal combustion engine which is capable of identifying blow-by of an intake valve and/or blow-by of an exhaust valve, and/or deposition of carbon on a cylinder.The state of an intake...
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JP2014208981A |
To provide a deposit adhesion suppression structure of an internal combustion engine, capable of suppressing adhesion of deposit on a wall face of a combustion chamber and a surface of a portion, contacting intake air, of an intake syste...
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JP2014206113A |
To provide a valve gear component capable of commonizing a valve bridge with a simple structure when dimensions between valves are different.A valve gear component is provided with: a valve bridge (20) respectively joined with two valves...
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JP5611449B2 |
It is an object of the present invention to achieve the improvement of the combustion efficiency in the combustion chamber and the improvement of the fuel consumption rate by forming, in the inner circumferential surface of a sleeve into...
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JP5607582B2 |
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JP5605273B2 |
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JP2014194185A |
To allow deposits to be restrained from adhering/accumulating on an engine valve, such as an intake valve and an exhaust valve, to prevent preignition of an engine.An engine valve 1 according to the present invention comprises an umbrell...
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JP2014190209A |
To provide a spring sheet assembling device which can easily assemble a spring sheet into a cylinder head while reliably retaining the spring sheet with a simple constitution.A spring sheet assembling device 1 includes a guide member 4 w...
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JP2014190215A |
To provide a workpiece installation device capable of easily installing a workpiece such as a lash adjuster to an installation object without involving complicated work.A workpiece installation device 10 is for installing a lash adjuster...
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JP2014169631A |
To provide a method for producing a diesel engine exhaust valve which can be used in a high temperature combustion type engine and has a shaft part and an umbrella part integrated with each other by using a Ni-base age-precipitated alloy...
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JP2014169696A |
To properly cool, in particular, a hollow valve (1) so as to increase a knocking limit of an internal combustion engine, as a result.A metallic hollow valve (1) of an internal combustion engine includes a cylindrical shaft (2) having a c...
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JP5590297B2 |
To properly set a load of a valve in response to more widely a structure of an internal combustion engine or operation conditions. A device for control of the internal combustion engine sets a load which is applied on a closed-valve side...
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JP5590643B2 |
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JP2014166644A |
To provide a method for manufacturing a hollow engine valve, which can elongate the lifetime of a metal mold and enhance the yield by decreasing deformation resistance down to a surface pressure level where even a material with high defo...
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JP2014159802A |
To enable a point contact three-dimensional cam lifted by one intake cam lobe to perform a stepless continuous variable control over a lift amount, working angle and timing of an intake valve and an exhaust valve.This invention relates t...
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JP2014152636A |
To reduce the amount of a getter agent enclosed in an internal space with Na.A Na supply device includes a storage system device S for storing Na, and a Na injection system device I for injecting Na stored in the storage system device S ...
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JP3192572U |
To prevent an excessive stress generated at a fitting portion with a valve stem guide at the time of mounting on the valve stem guide, prevent an abnormality in the mounting state, and prevent loosening and falling off. Provide a valve s...
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JP5574752B2 |
A method for manufacturing a hollow engine valve, capable of simplifying the manufacturing process and reducing the manufacturing cost. A method for manufacturing a hollow engine valve is configured in such a manner that, in order to for...
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JP5575991B2 |
A method of manufacturing a valve for an internal combustion engine, comprising: a primary forging step for forming a generally disk-shape valve head; a thickness adjusting step of machining an excessively thick portion to adjust the thi...
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JP2014140874A |
To provide an intermediate molding manufacturing metal mold, a manufacturing method of an intermediate molding, a manufacturing method of an engine valve, the intermediate molding and the engine valve, capable of restraining the occurren...
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JP5564206B2 |
PURPOSE: A cylinder head device having cooling and lubricative functions is provided to increase the service life of components by adding the cooling and lubricative functions to a valve stem and valve disc. CONSTITUTION: The height of a...
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JP5549510B2 |
To provide a lean burn engine capable of largely improving fuel economy performance, by largely improving heat efficiency.This lean burn engine 1 includes an engine body having a combustion chamber 17, and a control means 100 for control...
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JP5551413B2 |
A powder metal engine component particularly suited for use as a valve seat insert in both light and heavy duty internal combustion engine applications. The powder metal engine component contains an intermetallic phase such as a Laves ph...
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JP2014122572A |
To provide a technology which can reduce a fit-in cost of a valve cotter and can accurately fit the valve cotter.Even if a shaft center axis 78 and a valve system center axis 76 are displaced from each other, the axial alignment of the s...
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JP5535741B2 |
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JP5538972B2 |
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JP5534447B2 |
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JP5534438B2 |
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JP5529594B2 |
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JP5525507B2 |
Provided is a valve seat having excellent strength and wear resistance. In a valve seat using an iron-based sintered alloy, an oxide mainly composed of triiron tetroxide is formed by oxidation treatment on the surface and interior of the...
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JP5525986B2 |
A sintered valve guide exhibits a metallic structure having a mixed structure and a hard phase in which hard particles are dispersed in an alloy matrix. The mixed structure consists of pearlite, an Fe—P—C ternary eutectic phase, a fe...
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JP3191104U |
To explode by superimposing a stainless steel heat-resistant steel metal plate material and a superalloy high-temperature corrosion-resistant Ni-based metal plate material on a base material of a flammable surface of an exhaust valve rod...
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JP5512256B2 |
An engine valve according to the present teaching has a hot-forged head portion having an oxidized surface layer at a radially outer peripheral surface. The oxidized surface layer is formed during hot-forging of the head portion.
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JP2014088793A |
To provide a valve seat for enabling efficient heat release while securing mounting accuracy, and to provide a cylinder head on which the valve seat is mounted.A ring-shaped valve seat 10 which is mounted on a cylinder head 2 of an engin...
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JP5489851B2 |
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JP2014084725A |
To provide a method of manufacturing an engine valve capable of reducing manufacturing manhours to suppress the manufacturing cost while increasing the heat transfer area of a hollow part formed in the valve.A manufacturing process for m...
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JP2014080891A |
To provide a poppet valve capable of suitably suppressing the accumulation of deposits.The poppet valve has a shaft part 10 and an umbrella part 11. Inside the umbrella part 11 of the poppet valve, a hollow portion 15 is provided which i...
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JP5486093B2 |
A surface hardening material being excellent in abrasion resistance and having impact resistance is provided. Provided are: a wear-resistant cobalt-based alloy containing 20.0 to 30.0 mass% of a sum of Mo and/or W, 0.8 to 2.2 mass% of B,...
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JP5484899B2 |
It is an object of the present invention to provide a valve seat product in which the amount of hard particles added to improve the wear resistance of a valve seat of an internal combustion engine is increased, and is excellent in the me...
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JP5486092B2 |
A surface hardening material being excellent in impact resistance and having abrasion resistance is provided. Provided are: a high-toughness cobalt-based alloy containing 25.0 to 40.0 mass% of Cr, 0.5 to 12.0 mass% of a sum of W and/or M...
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JP5485011B2 |
Provided is a method for producing an engine valve (V) by subjecting a stem portion (S) having a hollow part (H) to a drawing treatment using a series of dies (D1, D2, Dx, Dx+1, Dn) such that the outer diameter and inner diameter of the ...
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JP5480732B2 |
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JP5475868B2 |
The present invention provides a vehicle valve stem seal having both durability and sliding properties at an extremely high level in addition to usual sealing performance. The present invention is a vehicle valve stem seal comprising an ...
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