Patents
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)
08/1989
08/15/1989US4856468 Ball-and-socket joint
08/10/1989WO1989007216A1 Reed valve
08/01/1989US4852531 Titanium carbides and borides; metal matrix composites
07/1989
07/27/1989DE3801977A1 Internal combustion engine
07/19/1989EP0324249A1 Combustion fluid flow intake and exhaust valves
07/11/1989US4846138 Low profile internal combustion engine
07/06/1989DE3743047A1 Automatically working large-channel annular valves for Otto engines
07/05/1989CN2040542U Guide-inlaid annular gas valve
07/04/1989US4844024 Valves for internal combustion engines
06/1989
06/22/1989DE3741720A1 Lifting valve with valve seat for an engine
06/20/1989CA1255927A1 Alloys for exhaust valve
06/14/1989EP0320330A1 Device for injecting fuel pneumatically in a cylinder of an internal combustion engine
06/13/1989US4838218 Ceramic valve supporting structure in use for internal combustion engine
06/06/1989US4836848 Fe-based sintered alloy for valve seats for use in internal combustion engines
06/06/1989US4836151 Two cycle engine with turbulence generator at reed valves
05/1989
05/30/1989US4834037 Unitary molded plastic valve seal
05/30/1989US4834036 Composite valve for reciprocating engines and method for manufacturing the same
05/24/1989DE3837678A1 Inlet and exhaust valve arrangement for an internal combustion engine
05/23/1989US4831976 Engine with valve seat inserts and method of retaining
05/18/1989DE3737827A1 Method for operating a supercharged internal combustion engine, and internal combustion engine for carrying out the method
05/16/1989US4829967 Two-stroke internal combustion engine, with fuel injection and controlled ignition
05/16/1989US4829952 Poppet valve lash cap assembly
05/02/1989US4826180 Valve stem sealing assembly
04/1989
04/26/1989EP0312768A1 Valve seat
04/18/1989US4822254 Oscillating cylinder pumping arrangement
04/18/1989US4822061 Valve seal retainer
04/13/1989DE3732826A1 Device for controlling the charge of a four-stroke internal combustion engine
04/05/1989EP0310455A1 Valve seal retainer
03/1989
03/28/1989US4815706 Values for improved fluid flow therearound
03/14/1989US4811960 Fixed valve stem oil seal
03/14/1989US4811704 Valve stem seal
03/14/1989US4811703 Valve stem seal
03/14/1989US4811701 Coated valve for internal combustion engine
03/07/1989US4810585 Metal-ceramic composite bodies and a method for manufacturing the same
02/1989
02/21/1989US4805568 Swing valve for internal combustion engines
02/01/1989EP0301267A1 Ball joint placed between a rocker arm and a valve shaft in an internal-combustion engine
01/1989
01/19/1989DE3822005A1 Intake arrangement for an internal combustion engine with a diaphragm valve
01/17/1989US4798181 Valve guidance for an exhaust gas valve of an internal combustion engine
01/10/1989US4796584 Intake control system for internal combustion engine and intake control valve used therein
01/05/1989DE3741511A1 Cylinder head with a common gas-reversing valve for the inlet and outlet of an internal combustion engine
01/03/1989CA1248027A1 Air-scavenged two-cycle internal combustion engine
12/1988
12/29/1988DE3733441C1 Non-return valve device in the intake port of a quantity-controlled internal combustion engine
12/28/1988EP0296619A1 Composite valve for reciprocating engines and method for manufacturing the same
12/28/1988EP0296291A2 Slide assembly and valve assembly
12/27/1988US4793970 Heat-resistant, corrosion-resistant nickel base alloys
12/13/1988US4790272 Non-circular poppet valves for internal combustion engine cylinder assemblies
12/01/1988DE3716505A1 Method for Reducing the Wear of the Control Devices in Internal-Combustion Engines and Device for carrying out the Method
11/1988
11/29/1988US4787736 Laser clad valve for internal combustion engine
11/15/1988US4784090 Intake device for outboard engine
11/10/1988DE3714229A1 Zylinder head for an internal combustion engine
11/09/1988EP0289675A1 A method, and a valving arrangement, for improving air-fuel mixing
10/1988
10/25/1988US4779584 Internal combustion engine intake valve
10/18/1988US4777916 Valve spring device for a valve in an internal combustion engine
10/12/1988EP0285791A2 Assembly method for valve stem seals
09/1988
09/27/1988US4773363 For attachment to an internal combustion engine
09/22/1988DE3707784A1 Multi-component inlet port for four-stroke engines
09/08/1988DE3706187A1 Driving device for a machine part guided in an adjustable, preferably linearly adjustable, manner
09/06/1988US4768479 Oil-sealing valve guide insert and method of manufacture
08/1988
08/31/1988EP0280500A1 Internal combustion engine intake valve
08/31/1988EP0280467A1 Method for providing valve members having varied microstructure
08/31/1988EP0279974A1 Oil-sealing valve guide insert and method of manufacture
08/30/1988US4767597 Heat-resistant alloy
08/25/1988DE3704473A1 Valve material for charge cycle valves
08/23/1988US4765955 Heat and corrosion resistance; hardness
08/18/1988DE3703867A1 Device for measuring the displacement of reciprocating valves
08/16/1988US4763876 Valve seat insert and cylinder head with the valve seat insert
08/16/1988US4763618 Valve stem oil deflector
08/02/1988US4761340 Ceramics sliding member
07/1988
07/28/1988DE3741880A1 Device for preventing backflows of fresh gas in the intake pipe of an internal combustion engine
07/27/1988EP0275841A2 Process for obtaining a valve seat
07/14/1988DE3644664A1 Aluminium titanate ceramic and use thereof
07/12/1988US4756281 Method, and a valving arrangement, for improving air-fuel mixing
06/1988
06/16/1988WO1988004357A1 Valve assembly
06/07/1988US4748944 Reed valve device for 2-cycle engine
06/01/1988EP0269587A1 Valve spring device in internal-combustion engines
06/01/1988EP0269245A1 Solution heat treatment of engine poppet valves
05/1988
05/31/1988US4747375 Device for controlling the phased displacement of rotating shafts
05/25/1988EP0268339A2 Non-return reed valve for the delivery of fuel into internal combustion engines, with directed flow and maximum adjustable opening, with elastic resistance plates
05/19/1988DE3639147A1 Inlet/exhaust valve for an internal combustion engine
05/18/1988EP0267244A1 Engines for use with gaseous fuels
05/17/1988US4745251 Valve seat inductor
05/17/1988US4744340 Vortex generator intake valve and system of using the same
05/11/1988EP0266936A1 Powdered metal part
05/11/1988EP0266935A1 Powdered metal valve seat insert
05/05/1988DE3715279A1 Single-valve oscillating rotary slide cylinder head
05/04/1988EP0265919A1 Light-weight engine valve and method of producing the same
05/03/1988US4741080 Process for providing valve members having varied microstructure
04/1988
04/28/1988DE3735595A1 Two-stroke internal combustion engine with fuel injection and controlled ignition
04/26/1988US4739968 A disc valve control means
04/26/1988US4739732 Kit for attaching reed valves for 2-cycle engines
04/21/1988DE3712525C1 Device for the contactless measurement of the temperature of a valve of an internal-combustion engine
04/14/1988DE3634461A1 Inlet valve arrangement for a reciprocating piston internal combustion engine
04/12/1988US4737201 Varying microstructure to match stresses, temperature and wear conditions encountered in service
04/05/1988US4734968 Base layer sintered alloy of higher heat resistance and creep resistance than valve seat layer
03/1988
03/30/1988EP0261485A1 Gasket assembly for oil pan valve covers and the like
03/15/1988US4730583 Valve stem oil deflector
03/09/1988EP0259023A1 Ceramic valve seats
03/09/1988EP0091944B1 Multiple concentric intake/exhaust valve system for an internal combustion engine
03/08/1988US4729546 Titanium engine valve and method of making
03/08/1988US4729350 Hydraulic valve clearance compensation apparatus for internal combustion engines
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