Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7401586 | Valve seat rings made of basic Co or Co/Mo alloys, and production thereof A cylinder head for internal combustion engines, comprising a metallic valve seat ring that is formed by a thermally sprayed homogeneous layer made of a basic Co or Co/Mo alloy. The sum of the Co content and Mo content in the alloy exceeds 50 percent by weight while... | 07/22/2008 |
| 7377249 | Outward-opening gas-exchange valve system for an internal combustion engine An outwardly-opening gas-exchange valve assembly for an internal combustion engine. The valve assembly includes a port in a firing chamber in an engine head, the port having a valve seat on a side opposite from the firing chamber. A piston-shaped poppet valve head s... | 05/27/2008 |
| 7371265 | Continuous hydrogen and alcohol generator from coal A gas generator with the sole input of air, water and coal that continuously produces hydrogen and carbon monoxide and further reacts these two gases into alcohol. This gas generator/reactor is using its own by-products and is therefore also self sustaining. ... | 05/13/2008 |
| 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, including a stem section and a bevel section provided at one end of the st... | 04/29/2008 |
| 7251550 | Aircraft accessory monitor Methods and apparatus are provided for monitoring an aircraft accessory. The apparatus comprises a processor associated with said aircraft accessory, a transducer coupled to said processor and operable to produce parametric data relating to said aircraft accessory a... | 07/31/2007 |
| 7219933 | Hollow product, fluid processing system and joining method of hollow members A connecting portion (10c) of a container (10) of a catalyst converter is formed with a joining portion (15) to be joined to a joining portion (16) of a flange member (11) by spinning working, and the joining portion (15) fo... | 05/22/2007 |
| 7213547 | Valve A valve is constructed to strike a balance between providing relatively high sealing yet low friction as components of the valve move. The valve includes a port and an actuator movable relative to the port. A member is disposed between the port and the actuator. The... | 05/08/2007 |
| 7182057 | Engine cylinder head having an improved intake port configuration, and engine incorporating same A cylinder head of an internal combustion engine is provided with an improved intake port configuration, that improves the efficiency of air intake into a combustion chamber. The engine includes an intake valve which covers an opening of a combustion chamber and whi... | 02/27/2007 |
| 7144440 | Hard particle, wear-resistant iron-base sintered alloy, method of manufacturing the same, and a valve seat A hard particle having improved adhesion to a base material, a wear-resistant iron-base sintered alloy, a method of manufacturing the same, and a valve seat are provided. The hard particle comprises 20% to 70% Mo by mass, 0.2% to 3% C by mass, 1% to 15% Mn by mass, ... | 12/05/2006 |
| 7141534 | Metal forming device including bearing with sintered anti-friction bearing surface A composite anti-friction bearing structure comprising a bearing substrate and an anti-friction layer. The bearing structure can be in the form of bushings, wear plates, wear rings, etc. The anti-friction layer includes particles of an alloy which combines lubricity... | 11/28/2006 |
| 7089902 | Sintered alloy valve seat and method for manufacturing the same A valve seat, press-fitted into a cylinder head of an internal combustion engine, containing an iron-based sintered alloy, includes a valve-seating section and a head-seating section. The valve-seating section and the head-seating section are monolithically formed b... | 08/15/2006 |
| 7086358 | Method and device for controlling the speed of the valves of an internal combustion engine A method of controlling the speed of the valves in an electro-hydraulic actuation unit for the valves of an internal combustion engine in which the pressure of the fluid in the hydraulic actuator of the valve is controlled during the final phase of closure of a valv... | 08/08/2006 |
| 7066131 | Cylinder head In the present invention, there is provided a cylinder head in which seat rings, against which are placed intake valves, are mounted respectively on a plurality of intake ports that communicate with a combustion chamber of an internal combustion engine, and, among t... | 06/27/2006 |
| 7013858 | Method for the production of a valve seat This invention relates to a method for the production of a valve seat (5) for a cylinder head of an internal combustion engine. According to said method, an additional material is melted with the cylinder head by applying energy in the site in which the valve... | 03/21/2006 |
| 6904661 | Method of fabricating surface coated spherical slip joint for forming a sealed interface A surface coating for forming a sealed interface is formed on a substrate, without requiring subsequent finishing operations. The sealed confronting surfaces employ the same coating and can accommodate vibratory movement and high temperature corrosion. A mixture of ... | 06/14/2005 |
| 6903302 | Method for manufacturing valve seat using laser cladding process A method for manufacturing valve seats using a laser cladding process is provided that includes forming a casting material on which the valve seats are to be formed; fabricating a valve seat target position on which laser cladding will be performed, the valve seat t... | 06/07/2005 |
| 6880510 | Cylinder head for an internal combustion engine The invention relates to a cylinder head (1) for an internal combustion engine with at least one inlet channel (3), which generates a swirling flow (S) in the combustion chamber (2), preferably curved in the direction of the swirling flow (S) wi... | 04/19/2005 |
| 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 have radially inwardly depending upper ends. The first set of finger... | 06/22/2004 |
| 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 having a planar surface wherein the axis and the surface are n... | 01/20/2004 |
| 6564457 | Machining method of valve seat with laser-clad metal Immediately after a laser-cladding is performed, a control surface is formed by machining the clad metal while an extra metal is left. An intermediate inspection is performed about presence/absence of any defect in the clad metal using the control surface... | 05/20/2003 |
| 6539909 | Retractable seat valve and method for selective gas flow control in a combustion chamber The present invention provides an apparatus and method for selective control of gas flow in a combustion chamber in an internal combustion engine through a moveable or retractable seat valve that is independent of piston position. The retractable seat val... | 04/01/2003 |
| 6536397 | Bonding structure of valve seat and method of making the same A bonding structure of a valve seat has a port opening of a metallic head and an annular metallic valve seat insert. The valve seat insert includes an outer reduced diameter surface on its outer circumference. The material of the valve seat insert is hard... | 03/25/2003 |
| 6431140 | Intake port shape of internal combustion engine An object of the present invention is to restrict a part of intake flow which is apt to flow in a direction opposite to a counter swirl flow after colliding against a valve stem, and to produce an intense swirl while controlling a worsening of flow coeffi... | 08/13/2002 |
| 6405419 | Engine valve and seat burnishing system An arrangement for exercising (or burnishing) the intake and exhaust valves in the cylinder head of an internal combustion engine employs a plurality of out-of-phase eccentric cams coupled to a source of rotatory motion. The eccentric cams engage with res... | 06/18/2002 |
| 6321710 | Diffusion joining structure The external surface configuration of a portion of a mounted member that is joined to a mounting member includes, at a distal end position which first comes into contact with the mounting member when the mounted member is pressed against the mounting memb... | 11/27/2001 |
| 6298817 | Exhaust valve for an internal combustion engine An exhaust valve for an internal combustion engine including a movable spindle with a valve disc which on its upper surface has an annular seat are of a material different from the base material of the valve disc. In the closed position of the valve the s... | 10/09/2001 |
| 6283073 | Solenoid-operated valve control apparatus for internal combustion engine A control apparatus for a solenoid-operated valve that functions as an intake or exhaust valve of an internal combustion engine includes a lower spring biasing a valve body of the valve in a valve closing direction and upper and lower coils disposed above... | 09/04/2001 |
| 6260531 | Valve seat insert A valve seat insert 10 for use in combination with a cylinder head 12. Insert 10 is disposed within a cavity 24 formed within cylinder head 12 and includes several notches 40 which cooperate with surface 26 within cavity 24 to form a plurality of passages... | 07/17/2001 |
| 6260530 | Vortex-inducing valve seat insert A valve seat insert includes a ring bounded by surfaces including an inner wall circumferentially disposed about an imaginary central axis passing through the insert. The inner wall includes a plurality of grooves oriented diagonally with respect to the c... | 07/17/2001 |
| 6257217 | Combustion chamber component for an internal combustion engine having a water and oil repellent coating and process for formation of coating A combustion chamber component for an internal combustion engine has a water and oil repellent coating which has good adhesive power and in which the effect of suppressing the accumulation of deposits is well maintained. The coating is formed from an orga... | 07/10/2001 |
| 6244234 | Exhaust valve for an internal combustion engine An exhaust valve for an internal combustion engine including a movable spindle with a valve disc of a nickel-based alloy which also constitutes an annular seat area at the upper surface of the valve disc. The seat area abuts a corresponding seat area on a... | 06/12/2001 |
| 6240891 | Cylinder head for internal combustion engine A cylinder head for a combustion engine of diesel type has an inlet duct (10) of so-called tangential type whose mouth leading into the combustion chamber (3) is controlled by a conventional mushroom valve (14). The valve cooperates with a valve seat (11)... | 06/05/2001 |
| 6200688 | Nickel-iron base wear resistant alloy A wear resistant alloy is provided having a composition by weight of 1.0-2.5 C, 1.5-4.5 Si, 8.0-20.0 Cr, 9.0-20.0 W and/or Mo, 0.5-2.0 Nb, 20.0-40.0 Fe, and the balance being Ni (>25.0). This alloy provides excellent wear resistance and good hot hardness ... | 03/13/2001 |
| 6138351 | Method of making a valve seat A valve seat and cylinder head arrangement wherein the valve seat insert is formed from a material having an elongation at rupture of greater than 1 percent so as to facilitate tapered pressing to form a bonded valve seat.... | 10/31/2000 |
| 6114053 | Method of overlaying by laser beam and overlaying structure A method of overlaying by a laser beam, comprises the steps of: relatively moving and irradiating a laser beam with respect to a base metal and simultaneously putting an other metal material than the base metal material on the base metal surface; and form... | 09/05/2000 |
| 6089203 | Internal combustion engine with offset intake valve seat for improved intake charge motion A reciprocating internal combustion engine uses intake valve seats which are offset from the intake port center lines such that charge motion of the inlet charge will be increased without the need for a charge motion control valve, and without causing a l... | 07/18/2000 |
| 6082317 | Valve seat for internal combustion engine A valve seat for an internal combustion engine is provided with a base member in which cobalt-based hard particles are dispersed in a matrix of an iron-based alloy. The matrix of an iron-based alloy comprises (a) carbon in a range of 0.5-1.5 weight %, (b)... | 07/04/2000 |
| 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 part made of austenitic metal. There is a stem end piece ... | 12/28/1999 |
| 5975039 | Process for manufacturing valve seat made of sintered FE alloy and valve seat made of sintered FE alloy A process for manufacturing a valve seat which is made of a sintered Fe alloy and comprises a main layer of a valve seat and a contacting layer, comprises the steps of preparing either a powdery Cu or a powdery material containing Cu in a powdery Fe alloy... | 11/02/1999 |
| 5960760 | Light weight hollow valve assembly An light weight hollow valve assembly for use in an engine. The intake and exhaust valve seats are of a different metallurgical composition for reducing adhesive and abrasive wear between the valve seat and the insert. The assembly 10 includes a valve 12 ... | 10/05/1999 |
