Matches 1 - 50 out of 114 1 2 3 >
Match Document Document Title
7363901 Engine valve, method of manufacturing same, and cylinder head incorporating same  
An engine valve, formed of a titanium alloy, enables improvement of reliability and productivity while improving creep resistance and fatigue strength at a high temperature. The engine valve,...
7328679 Valve guide structure  
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...
7104238 Apparatus and method for lessening the accumulation of high boiling fraction from fuel in intake valves of combustion engines  
An intake valve for a combustion engine having an intake port is disclosed. The intake includes a valve guide having an end proximate the intake port, a valve shield extending from the end of the...
7063051 Liquid-cooled valve seat ring  
A cooled valve seat ring for a cylinder head of an internal combustion engine, having a valve seat part, wherein the cooled valve seat ring comprises a sheet-metal cooling channel consisting of a...
7032549 Valve lift sensor  
A valve lift sensor detects the position of an engine valve. The valve lift sensor includes a movable target carried on an engine valve and a stationary coil carried within an engine valve...
6938877 Valve stem seal assembly  
A valve stem seal assembly includes a retainer and a sealing element disposed within the retainer. The retainer includes a step and one or more installation pads. The sealing element includes a...
6752398 Valve stem seal assembly  
A valve stem seal assembly incorporates a cylindrical retainer having an axis and an upper end about which symmetrically and circumferentially arranged, alternating first and second sets of fingers...
6736101 Low friction sliding element for a reciprocating engine  
A low friction sliding element for reciprocating engine parts, including a sliding contact surface that is in sliding contact with a counterpart during relative sliding motion of the sliding...
6691663 Four-stroke internal combustion engine cylinder head  
A cylinder head for an internal combustion engine in which any of a plurality of valve guides for guiding intake and exhaust poppet valves provided with valve lifters can be press-fitted in fitting...
6679219 Intake and exhaust valves for internal combustion engines  
An intake and exhaust valve for an internal combustion engine is provided wherein the stem longitudinal axis is offset from the valve head center. Alternatively, the valve head may have an end...
6607820 Composite sliding material  
Bush 4 is fabricated by providing porous sintered metal layer 7 of copper on the surface side of back metal layer 5 of steel plate through copper plating layer 6 and coating the inside and...
6588391 Device for rotating a valve  
A device for rotating a valve for producing rotations of a gas charging valve in an internal combustion engine during its opening and closing movements. The device has a basic body having a...
6516765 Passively rotating valve  
A valve arrangement includes a valve member that rotates within a valve guide such that a frictional wear area is unlikely to occur on a discrete location of the valve stem and/or the valve guide....
6481407 Thin-walled valve guide insert and method for installing same within a cylinder head construction  
A valve guide insert for lining and relining a valve guide bore in an internal combustion engine, where the internal combustion engine includes a valve with a valve stem, and the valve guide bore...
6418901 Method of producing a metal component interacting by way of a sliding surface with a friction partner for a drive assembly  
A method of producing a metal component interacting by way of a sliding surface with a friction partner, for a drive assembly, includes forming the component from an...
6321699 Spheroidal rotary valve for combustion engines  
A rotary valve is disclosed suitable for replacement of poppet valves. The valve is temperature controlled through a combination of heat transfer techniques and means for reducing heat transfer...
6314932 Valve guide system and method  
A system and method for supporting a valve stem of a poppet valve that is held in a normally closed position by a valve spring, the poppet valve being adapted for use in an internal combustion...
6308676 Cooling system for rotary valve engine  
An improved cooling system for an internal combustion engine employing spherical rotary intake and exhaust valves which are fixedly mounted on a rotating shaft means, the improvement comprising the...
6178935 Valve control device for an internal combustion engine  
A valve control device for an internal combustion engine having a gas exchange valve for controlling an inlet and/or outlet cross section in the combustion chamber of the engine. The valve control...
6167856 Low friction cam shaft  
A low friction cam shaft for actuating at least one valve of an internal combustion engine includes a shaft member extending longitudinally, at least one cam secured to the shaft member, the cam...
6125810 Ceramic valve guide with two internal diameters  
Ceramic valve guides capable of withstanding high temperature ranges are typically used in high efficiency internal combustion engines. In very large engines these ceramic valve guides can be quite...
6119646 Guide for a movable member  
A guide for supporting sliding movement of a movable member includes a guide body having an outer surface, a first portion defining a first end of the guide body, and a second portion defining a...
6006778 Device for sensing the amount of oil in oil pans  
A valve stem sealing device used for preventing oil from entering a combustion chamber through a gap formed between a valve guide and a valve stem is disclosed. The valve stem sealing device...
6006713 Hollow valve for internal combustion engines  
A hollow valve for internal combustion engines, comprising a valve body having a disk, a hollow throat region and a stem component, wherein the valve body is designed in the form a deep-drawn metal...
5934236 Low friction valve train  
A low friction valve train actuating at least one valve in an internal combustion engine includes a cam shaft having at least one cam, a tappet contacting the cam and valve, the cam and valve...
5904125 Exhaust valve for internal combustion engine  
An internal combustion engine has a valve guide that is pressed into an opening in the cylinder head. An exhaust valve is slidably mounted in the bore of the valve guide. The exhaust valve has a...
5899185 Method of increasing heat transfer of a fitted material of a cylinder head in an internal combustion engine and a fitted portion of the fitted material  
A soldering layer is formed on a valve guide or valve seat and/or a holding bore of a cylinder head in an internal combustion engine. The solder can be melted below the highest temperature which...
5873337 In-guide valve stem seal  
A two-piece valve stem guide allows the guide to be reamed in-place without damaging an installed valve seal. A first section of the guide is press fitted into an axially extending bore of an...
5769037 Hollow valve in an internal combustion engine  
A hollow valve is used as an inlet or exhaust valve in an internal combustion engine. A hollow valve has a valve head and a valve stem. A cavity extends from the valve head to the valve stem. A low...
5730092 System for changing lift of a valve  
A valve system for an internal combustion engine includes a valve member having a head and a stem extending from the head, a seal ring on the valve member head, the seal ring being movable along an...
5662078 Intake valve device for preventing adhesion of deposits  
An intake valve in an internal combustion engine comprises a valve stem and a valve head and moves up and down. On either of contact surfaces between the valve stem and a valve guide, annular and...
5632240 Apparatus and method for an aluminum alloy cylinder head having a valve guide bore with spaced wear resistant integral surfaces  
This application discloses an aluminum alloy cylinder head for an internal combustion engine having an integral valve stem guide bore therein with integral wear resistant end portions of the bore...
5592913 Exhaust valve with a tapered stem portion  
An exhaust valve with a tapered stem portion has a head portion with a frustoconical seat portion and a trumpet like portion which extends from the seat portion to a tapered portion, a stem portion...
5539980 Process for forming valve guide insert  
A thin-walled valve guide insert for lining and relining a valve guide of an internal combustion engine includes opposing ends each having a tapered insertion section thereon. The tapered insertion...
5515821 Valve spring retainer stem oil shield  
A method and apparatus for inhibiting leakage of lubricating oil into an intake manifold and cylinder of a diesel engine during idling incorporates a seal press fit onto one end of an intake valve...
5507257 Value guide member formed of Fe-based sintered alloy having excellent wear and abrasion resistance  
A valve guide member for internal combustion engines is formed of an Fe-based sintered alloy having excellent wear and abrasion resistance, consisting essentially, by weight %, of 1 to 4% C, 1.5 to...
5503123 Internal combustion engine cylinder puppet valve having self-aligning guide  
A cylinder head assembly for an internal combustion engine includes self-aligning valve guides which are movable radially and coaxially to a variety of locations in which the axes of the valve...
5465691 Valve guide  
A valve guide (14) for guiding a stem (13) of a headed poppet valve (11) for slidable movement in an internal combustion engine has an inner bearing surface (17) of generally cylindrical shape but...
5458314 Temperature control in an ultra light engine valve  
An ultra light weight poppet valve which includes elements for controlling the temperature of the valve during operation. The valve is of the type which is formed as an elongated cup having a...
5435280 Method of mounting a ceramic valve guide assembly  
In order to achieve great engine efficiency, heat, normally dissipated through the cooling system, is directed through the exhaust passage to increase the turbocharger speed. Ceramic valve guides...
5413073 Ultra light engine valve  
An ultra light poppet valve for an internal combustion engine. The valve is formed by cold forming a blank into an elongated cup having an extremely thin wall and a flared open end onto which a cap...
5406917 Oil-starved valve assembly  
A valve assembly (10) for use in an engine (12), comprising a valve stem guide (14) and a valve seat insert (40) mounted within the engine (12), the valve stem guide (14) and the valve seat insert...
5313917 Self-aligning valve assembly  
The self-aligning valve assembly facilitates proper seating of an engine exhaust valve even though the valve seat is distorted or tilted due to temperature gradients. The valve assembly includes a...
5249555 Valve guide insert  
A thin-walled valve guide insert for lining and relining a valve guide of an internal combustion engine includes opposing ends each having a tapered insertion section thereon. The tapered insertion...
5186135 Valve stem topographical optimization process  
Processes are provided that in one embodiment provide scribe or scratch marks (16) in the outer surface of an internal combustion engine valve stem (12) that are oriented at an acute angle (alpha)...
5174256 Variable guide height valve seal  
A valve stem seal assembly adapted for a reciprocable valve stem disposed within a valve guide can tolerate major variations in the guide height. The assembly includes a lower hollow cylindrical...
5140956 Valve guide relining sleeve  
A sleeve for lining a valve guide of an internal combustion engine and being able to receive a valve stem therethrough, has a seam that extends the length thereof. The inner surface of the sleeve...
5062908 Valve guide  
A valve guide and a method for the manufacture thereof are described. The valve guide is a tubular article having a length to outer diameter ratio greater than about 1.5 and is made of a ferrous...
4976231 Curved intake duct having improved flow characteristics  
The invention is directed to an improved curved intake duct through which fluid flows. The curved intake duct includes a fairing positioned upstream and adjacent to the valve stem which extends...
4938181 Valve for internal combustion engines  
The invention relates to a valve which is intended for internal combustion engines and which comprises a valve-head (2) which has formed thereon a circular abutment surface for sealing coaction...
Matches 1 - 50 out of 114 1 2 3 >