Patents
Sitemap › F01 - Machines or engines in general; Engine plants in general; Steam engines › F01L - Cyclically operating valves for machines or engines › F01L 3 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
Patents for F01L 3 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof (4,573)
12/1990
12/25/1990US4979475 Rocker arm with rounded channel to engage a valve stem with semi-spherical end
12/20/1990DE4019072A1 Coil spring with spring seat for reciprocating components - has seat shaped to receive open-wound end of spring and is inserted between this end and moving component
12/18/1990US4977869 Valve assembly for internal-combustion engines
12/13/1990DE4017030A1 Wear and corrosion resistant valve seating ring for combustion engine
12/12/1990EP0401482A2 Wear resistant sintered alloy, especially for valve seats for internal combustion engines
12/11/1990US4976248 Apparatus for the generation of turbulence in internal combustion engines
12/04/1990US4974566 Optimal swirl generation by valve control
12/04/1990US4974498 Synthetic diamond protective coating
11/1990
11/15/1990WO1990013682A1 Poppet valve manufacture
11/07/1990EP0396327A1 Valve operating system of internal combustion engine
11/07/1990EP0396279A1 Hydraulic tappets
10/1990
10/31/1990DE4012500A1 Scavenging of a two-stroke engine - is improved by use of collars formed on poppet valve heads, on valve seating side but inside valve seat contact area
10/31/1990DE3914262A1 Valve for internal combustion engine - has metal valve head attached to push rod made of fibre reinforced plastics
10/30/1990US4966626 Rare earth borides
10/23/1990US4964384 Tornado engine
10/23/1990US4964380 Induction system for a two-cycle engine
10/17/1990EP0392893A1 Valve guiding and sealing device
10/02/1990US4960643 Composite synthetic materials
09/1990
09/19/1990EP0387922A2 Ceramic valve arrangement
09/18/1990US4957081 Combustion chamber of an engine
09/11/1990US4955329 Valve unit for an internal combustion engine intake duct, comprising non-return flap valves
09/05/1990CN1045153A Simulating tester of double head strengthen wear between engine's air valve and seat
08/1990
08/28/1990US4951617 Attachable intake valve assembly and method for using same
08/22/1990EP0383695A1 Valve arrangement for internal-combustion engines
08/17/1990CA2010123A1 Valve assembly for internal combustion enjine
08/14/1990US4948559 Alloy for building up valve
08/14/1990US4947811 Floating valve stem seal
08/14/1990CA1272651A1 Ceramic valve guide and seat
08/08/1990EP0380770A1 Valve stem seal
08/08/1990EP0380695A1 Lubrication device of valve seat portion in internal combustion engine
08/07/1990CA1272432A1 Titanium engine valve and method of making
07/1990
07/26/1990DE3935496C1 (Exhaust) valve of internal combustion engine - made at least completion of intermetallic phases of nickel and aluminium
07/26/1990DE3902183A1 Device for increasing the permeability of inlet and outlet ports in internal combustion piston engines
07/17/1990US4941436 Cooling system for I.C.E. valve seat inserts
07/10/1990CA1271426A1 Reed valve assembly
07/03/1990US4938181 Valve for internal combustion engines
06/1990
06/27/1990EP0375115A1 Metering valve stem seal
06/21/1990DE3841839A1 Valve arrangement
06/19/1990US4934351 Fabricating internal combustion engine cylinder heads with close tolerance internal surfaces
06/13/1990EP0372223A1 Copper-based sintering material, its use and process for preparing work pieces from this material
06/13/1990CN1042948A Copper-based sintering material, use thereof, and process for making molding articles from sintering material
06/05/1990US4931104 Process for cleaning porous parts
05/1990
05/30/1990EP0370216A1 Engine brake with a throttle valve in the cylinder head of an internal-combustion engine
05/29/1990US4928645 Ceramic composite valve for internal combustion engines and the like
05/29/1990US4928644 Lubrication control
05/23/1990EP0369967A1 A valve arrangement in an internal combustion engine
05/17/1990WO1990005199A1 Sintered material derived from copper, its use and process for manufacturing mouldings from the sintered material
05/12/1990CA2002769A1 Copper-based sintered material, its use, and method of producing molded parts from the sintered material
05/09/1990EP0367383A2 Reed valve device with air control valve
05/08/1990US4922866 Fuel injector assembly
05/03/1990WO1990004657A1 Copper-based sintered alloy
05/03/1990DE3836578A1 Valve stem sealing for internal combustion engines
04/1990
04/24/1990US4919719 Consisting of carbon, nickel, cobalt and iron and hard phase dispersed in matrix; valve seats for automobile engines
04/24/1990US4919090 Mounting aid for installing valve actuating elements
04/18/1990EP0364278A1 Ceramic valves for use in internal combustion engines and a process for producing the same
04/11/1990EP0363225A2 Valve spring retainer for valve operating mechanism for internal combustion engine
04/10/1990US4915128 Automatic chambered flap valve for controlling gas passage, particularly for feeding two-stroke internal combustion engines
04/10/1990US4915069 Metering valve stem seal
03/1990
03/27/1990US4911124 Engines for use with gaseous fuels
03/20/1990US4909202 Frustoconical valve stem sealing element
03/13/1990US4907544 Turbocharged two-stroke internal combustion engine with four-stroke capability
03/08/1990WO1990002019A1 A method and device for accurately positioning and aligning a guide sleeve into a bore of a cylinder head
03/07/1990EP0357216A1 Alloy for building up valve
03/07/1990EP0356641A2 Cooling system for the valve seats in the cylinder head of an internal-combustion engine
03/06/1990US4905635 Valve gear for internal combustion engine
02/1990
02/22/1990DE3827154A1 Device for increasing the transmission of inlet and exhaust port in reciprocating piston internal combustion engines
02/20/1990US4901760 Reed valve means
02/20/1990US4901683 Vented valve for internal combustion engines
02/20/1990US4901682 Reed valve for two cycle internal combustion engines
02/15/1990DE3827148A1 Reciprocating piston internal combustion engine with piston cell
02/13/1990CA1265654A1 Metal-ceramic composite bodies and a method for manufacturing the same
02/08/1990WO1990001108A1 Lubrication device of valve seat portion in internal combustion engine
01/1990
01/30/1990US4896638 Fabricating internal combustion engine cylinder heads with close tolerance internal surfaces
01/17/1990CN1038856A Engine
01/02/1990US4890594 Device for the pneumatic injection of fuel into a cylinder of an internal combustion engine
12/1989
12/14/1989DE3818803A1 Process for producing valve spring retainers from plastic reinforced with fibres
12/07/1989DE3814362C1 Process for producing bucket tappets and similarly stressed components in internal combustion engines
11/1989
11/28/1989US4882829 Device for accurately positioning and aligning a guide sleeve into a bore of a cylinder head
11/23/1989EP0342191A1 Valve assembly.
11/23/1989DE3914561A1 Gleitstangendichtung, insbesondere fuer ventilschaefte Gleitstangendichtung, especially for Valve Stems
11/22/1989CN1037382A Valve apparatus
11/21/1989US4881500 Poppet valve made of ceramics
11/15/1989EP0341480A1 Assembly device for valve operating elements of internal-combustion engines
11/14/1989US4879978 Poppet valve spring retainer
11/14/1989US4879976 Reed valve mechanism for engines
10/1989
10/18/1989EP0337520A1 Valve unit for an internal combustion engine intake duct, comprising non-return flap valves
10/10/1989US4872431 Internal combustion engine with ceramics valves
10/05/1989WO1989009325A1 Two cycle engine with turbulence generator at reed valves
10/03/1989US4871512 Alloys for exhaust valve
10/03/1989US4871266 Slide assemblies
09/1989
09/21/1989WO1989008770A1 Titanium poppet valve
09/20/1989CN2044643U Valve set for large-power displacement pump
09/19/1989US4867116 Aircraft exhaust valves
09/13/1989EP0332586A1 A head of light material for internal combustion engines, with sintered steel inserts, and a method for its manufacture
09/13/1989EP0332350A1 Valve stem seal
08/1989
08/30/1989EP0330638A1 Valve gear for internal combustion engine
08/30/1989EP0329827A1 Automatic chambered flap valve for controlling gas passage, particularly for feeding two-stroke internal combustion engines
08/30/1989CN2043668U Heat-pipe air gate
08/16/1989EP0328471A1 Automatic assembling method for a spliced conical part in a ring, and device for performing this method
08/15/1989US4856970 Metal-ceramic combination
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