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JP2009293465A |
To provide a method for manufacturing a hollow valve capable of improving the strength of a head part.Diameter of a pipe material 20 is reduced with a part of the pipe material 20 left by ironing to form a base section 11a of a stem part...
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JP4379297B2 |
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JP4380695B2 |
The present invention provides an internal combustion engine with a variable valve mechanism that can avoid an unnecessary friction increase while preventing a hydraulic lash adjuster from pumping up. When a first engine speed N1 is a cr...
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JP2009542979A |
An exhaust valve arrangement includes a cylinder having a top end, an exhaust conduit connected to the cylinder by an opening in the top end of the cylinder, the opening comprising a valve seat, a valve member comprising a valve stem and...
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JP2009281410A |
To provide a valve stem seal and a valve stem seal system with excellent durability and efficiency of assembling work.The valve stem seal system is provided with a valve stem guide 200 having an insertion hole to which a valve stem 300 i...
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JP4375060B2 |
To provide an intake system capable of generating strong swirl while suppressing reduction of flow rate of intake gas. This intake system is provided with an intake port 5 provided in a cylinder head 3 and communicating with a cylinder b...
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JP4373287B2 |
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JP4373761B2 |
A valve guide structure is provided which can suppress deterioration of a valve guide even if radial stress is applied on an upper portion of a stem of a valve. The valve guide structure is such that the stem 2 of the valve 1 is supporte...
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JP4368455B2 |
A gamma -TiAl alloy disc valve is produced by partial extrusion of a preform, having the requisite disc diameter (D) and properties, using a die with a taper (4) corresponding to the valve cone (1). A gamma -TiAl alloy disc valve is prod...
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JP2009264449A |
To provide a valve stem seal having improved eccentric following capability and further improved sealing performance.The valve stem seal 1 seals an annular space between a valve guide and a valve stem reciprocatingly provided in the valv...
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JP2009264415A |
To provide a valve stem seal mounting structure for effectively preventing the movement or come-off due to back pressure without worsening mounting efficiency.A valve stem seal 1 has a cylindrical base part 11 to be mounted on the outer ...
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JP2009264132A |
To provide an engine valve and a manufacturing method therefor, especially a sintered titanium-based engine valve provided with a stem portion having excellent fatigue resistance characteristic and high wear resistance and a face portion...
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JP4360540B2 |
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JP4361649B2 |
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JP2009255254A |
To provide a press-fitting device capable of accurately press-fitting numerous kinds of press-fitting components without deteriorating the work efficiency of a press-fitting operation, and a press-fitting method using the press-fitting d...
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JP2009257297A |
To provide an engine valve gear with small load resistance and small energy loss.The engine valve gear includes a motor 30 which has a spring 20e arranged to bias a valve in a closing direction and with a spring constant set smaller than...
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JP2009257509A |
To provide a valve stem seal 1, capable of sealing a section between a valve stem 4 of intake/exhaust valve of an internal combustion engine and a valve guide 3 for supporting the valve stem to move freely in the axial direction and prev...
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JP4359529B2 |
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JP4359361B2 |
An exhaust valve for a large IC engine, e.g. for a marine diesel engine, has the valve head (2) and the lower part of the valve stem (7) made using a high quality metal/alloy with high resistance to high temperatures and pressures. The m...
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JP2009248153A |
To provide an overlay method for a cast iron base material where an overlay layer having reduced gas defects is easily and stably obtained by suppressing gasification of graphite without performing the troublesome setting of overlay cond...
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JP2009248168A |
To improve the accuracy of insert-molding of a valve seat to a cylinder head and improve cooling performance of the valve seat after insert molding.In a structure in which a valve seat 6 is insert-molded in a cylinder head 1 having a wat...
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JP2009235954A |
To provide a durable cylinder head reinforcement member.A plurality of valve seat parts arranged in a flat plate shape and connection parts connecting those are integrally formed into an iron base sintered body. Formation of a crack betw...
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JP4341964B2 |
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JP2009228590A |
To provide an air intake and exhaust valve driving system of an internal combustion engine capable of realizing the considerable miniaturization of a cylinder head.The operational directions of plungers 61, 62 of solenoids 41, 42 are set...
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JP2009226410A |
To prevent the generation of wrinkles caused by buckling on a thick onion-shape portion formed with a conducting upsetting formation and further, the poor formation of the cap part thereafter.A method for manufacturing a hollow valve, is...
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JP4341166B2 |
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JP4337686B2 |
To provide an intake valve temperature estimating device for an internal combustion engine for precisely estimating an intake valve temperature after starting the internal combustion engine. The device sets a cooling water temperature Tw...
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JP4335189B2 |
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JP4333941B2 |
An engine is disposed with a crankshaft axially oriented in the longitudinal direction of the vehicle body. A camshaft and an exhaust port in a cylinder head are disposed parallel to the crankshaft. The exhaust port is open at the front ...
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JP2009197606A |
To provide a valve lift quantity measuring device and a measuring method for enabling the measurement of an operation state and a lift quantity of a valve while a cylinder head is assembled to a cylinder block.In the valve lift quantity ...
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JP4323467B2 |
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JP4323070B2 |
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JP4323071B2 |
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JP4323069B2 |
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JP2009190171A |
To provide a laminated body wherein sealing property intrinsic to rubber is not deteriorated, fixation of a rubber layer and fall-off of a solid lubricant hardly occur and further wear and deterioration of the rubber layer due to bleedin...
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JP4318813B2 |
An intake port and an exhaust port are formed without changing a passage sectional area or its shape a little and without increasing an entire height of an engine. A seat machining part of a valve guide fixing seat of the intake port and...
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JP2009185655A |
To provide a method for manufacturing an inlet-exhaust valve capable of simplifying a manufacturing process.In this method for manufacturing the inlet-exhaust valve 10, incompressible fluid 16 is filled in a bottomed metal first intermed...
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JP4317833B2 |
An exhaust valve for a two stroke engine, especially a two stroke diesel engine has the valve stem (7) positioned in a vertical valve guide (10) and with the ring space (11) between the valve stem and the valve guide protected by an uppe...
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JP4310596B2 |
The oil seal of the present invention for a valve stem includes a triple seal lip having a cam chamber side lip, a first combustion chamber side lip and a second combustion chamber side lip. Notches are provided on the second combustion ...
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JP4313206B2 |
The invention relates to a method for providing a component of a large machine, especially a piston head or an outlet valve head of a large two-stroke diesel engine, with a protective coating (4) which is applied to the corresponding sur...
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JP4311177B2 |
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JP4303172B2 |
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JP4304436B2 |
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JP4305060B2 |
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JP4299042B2 |
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JP4298690B2 |
To provide an engine valve (1) formed of titanium alloy which enables improvement of reliability and productivity while improving a creep resistance and a fatigue strength at a high temperature. An engine valve (1) including a stem secti...
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JP2009150247A |
To efficiently release heat transferred from combustion gas within a cylinder to a valve.An intake valve 16 is provided with: a first anisotropic heat conductive material 61 arranged on a bottom face 46a of an umbrella part 46; a second ...
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JP4293078B2 |
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JP4292930B2 |
To provide a sealing structure having a static seal function for low pressure fuel and a dynamic seal function for high temperature high pressure combustion gas at an auxiliary chamber valve support part of a gas engine. In a sealing str...
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JP4291703B2 |
To avoid the occurrence of engine stalling even if the valve lift amount of an intake valve is stuck on a low lift side due to the failure of a variable valve train. When the variable valve train fails, an air amount control is switched ...
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