Patents
Sitemap › F02 - Combustion engines; Hot-gas or combustion-product engine plants › F02F - Cylinders, pistons, or casings for combustion engines; Arrangements of sealings in combustion engines › F02F 1 - Cylinders; Cylinder heads
Patents for F02F 1 - Cylinders; Cylinder heads (16,229)
10/1991
10/22/1991US5058489 Piston structure for internal combustion engine
10/17/1991CA2037339A1 Marine propulsion device with closed deck cylinder block construction
10/16/1991EP0452158A1 SOHC type internal combustion engine
10/15/1991US5056486 Combustion engine
10/15/1991US5056472 4-cycle 12-cylinder engine
10/15/1991US5056470 Piston-operated internal-combustion engine having wet cylinder liners
10/09/1991EP0450722A1 Process for obtaining a continuous metallurgical bond between the linings of the cylinders and the cast which constitutes the crankcase of an internal-combustion engine
10/09/1991EP0450509A1 Internal combustion engine with at least an exhaust port in the cylinder
10/09/1991EP0450067A1 Cylinder liner cooling system
10/08/1991US5055435 Ceramic materials to be insert-cast
10/08/1991US5054537 Lost foam pattern assembly for V-block engine
10/08/1991US5054441 Decompression device in a two-cycle engine
10/07/1991CA2039878A1 Process for obtaining a continuous metallurgical bond between the linings of the cylinders and the cast which constitutes the crankcase of an internal-combustion engine
10/02/1991EP0449356A1 Single or multi-cylinder block
10/02/1991EP0449308A1 Engine with a multiple ignition device
10/02/1991EP0449240A1 Multi-valve internal combustion engine
10/02/1991DE4009946A1 Multipart core for producing cylinder blocks etc. - with central core part made of two conical-shaped sections butting together at their central radial plane
10/01/1991US5052348 Cooling system for an engine
09/1991
09/25/1991EP0448525A1 Cooling circuit of a cylinder head for internal combustion engine
09/25/1991EP0447701A1 Reinforced heat resisting member and production method
09/24/1991US5050566 Flow duct for an internal combustion engine
09/24/1991US5050557 Stratified-combustion internal combustion engine
09/24/1991US5050547 Cylinder sleeve for engine
09/17/1991US5049100 Outboard engine unit
09/17/1991US5048468 Marine propulsion device with closed deck cylinder block construction
09/17/1991US5048467 Water jacket arrangement for marine two cycle internal combustion engine
09/12/1991DE4006945A1 In-line piston machine with balancing device - incorporates eccentrically running counterweight running parallel to crankshaft
09/11/1991EP0445355A2 Cylinder head casting apparatus and method
09/11/1991CN1054473A 内燃机 Internal combustion engine
09/10/1991US5046466 Spark-ignition engine
09/05/1991WO1991013241A1 Valve duration and lift variator for internal combustion engines
08/1991
08/28/1991EP0444018A1 Internal combustion engine comprising at least two inlet valves per cylinder
08/28/1991EP0443273A1 A vertical internal combustion engine having overhead valves
08/27/1991US5042443 Multiple-valve internal combustion engine
08/27/1991US5042440 Cylinder head for internal combustion engine
08/22/1991WO1991012419A1 Improvements to two-stroke internal combustion engines with diesel-type compression ignition
08/22/1991DE4031083C1 IC engine cylinder head - incorporates valve seats cooled by heat pipes extending into coolant channels
08/21/1991CN1013606B Improement relating to fuel injection system for internal combustion engines
08/20/1991US5040496 Two-stroke internal combustion engine
08/14/1991DE4100459A1 Cylinder head for IC engine - has internal passageways for circulation of cooling liquid
08/13/1991US5038732 Internal combustion engine cylinder head
08/08/1991DE4007939C1 Oil return system from IC engine cylinder head to sump - has oil return line completely outside engine block, and collector on cylinder head casing outside
08/08/1991DE4002964A1 IC engine cylinder head - has tappet openings of cross=sections comprising curved ends and outwards-arching sides
08/07/1991WO1991012418A1 Fuel combustion system, method, and nozzle member therefor
08/07/1991EP0440401A1 Air-cooled internal combustion engine
08/07/1991EP0440093A1 Cast product having ceramics as insert and method of making same
08/06/1991US5036805 Outboard engine
08/06/1991US5036804 Cooling system for four stroke outboard motor
08/06/1991CA1287240C Aluminum alloy slide support member
08/01/1991DE4002442A1 Cylinder head for IC engine - uses hollow inlet valve containing outlet valve on common axis
08/01/1991DE3448354C2 IC engine camshaft drive
07/1991
07/25/1991DE4001819A1 External ignition valve-controlled IC engine - raises conversion efficiency etc. by locating ignition plug between each pair of valves at edge of combustion chamber
07/23/1991US5033424 Dual tract induction
07/18/1991DE4100086A1 Fuel injection device for IC engine - performs mixture feed into combustion chamber through Laval nozzle
07/17/1991EP0437303A2 Ceramic port liners
07/17/1991EP0437302A2 Ceramic port liners
07/17/1991EP0436779A1 Cylinder head for internal-combustion engine
07/16/1991US5031592 Engine cylinder head with augmented air or air/fuel mixture flow and method
07/16/1991US5031588 Internal combustion engine utilizing stratified charge combustion process
07/16/1991US5031586 Multi-valve engine
07/03/1991EP0435491A2 Method of joining cylinder bore liners to an engine block
07/02/1991US5027761 Valve operating mechanism for internal combustion engine with a spark plug insertion hole in a rocker arm holder
07/02/1991US5027757 Two-stroke cycle engine cylinder construction
06/1991
06/28/1991CA2028084A1 Method of joining cylinder bore liners to an engine block
06/27/1991DE4039916A1 Engine mixture and intake system
06/27/1991DE4037526A1 Simultaneous drive for poppet valves - has cup-shaped tappet with skirt fitting over spring plate at sides
06/26/1991EP0433908A1 Intake and air-fuel mixture preparing system for spark-ignited multi-cylinder internal combustion engine
06/26/1991EP0433728A1 Cylinder head and valve arrangement for a multi-valve internal combustion engine
06/26/1991EP0433561A1 A diesel engine with a precombustion chamber
06/25/1991US5025760 Die-cast liquid cooled cylinder and method of making
06/19/1991EP0433125A1 Method for producing a sparkplug well in the cylinder head of an internal combustion engine
06/19/1991EP0432950A1 Internal combustion engines
06/19/1991EP0432374A1 Inlet conduit
06/18/1991US5024187 System for axially locating a camshaft
06/13/1991DE3941701C1 Cast cylinder head is formed of two parts - it has top part made of aluminium alloy and bottom part of reinforced fibre, for low wt. and high strength
06/12/1991EP0431920A1 Internal combustion engine
06/12/1991EP0431866A1 Internal combustion engines
06/12/1991EP0431770A2 Lost-foam Casting of dual alloy engine block
06/11/1991US5022227 Pipe carrying hot gases for an internal-combustion engine
06/05/1991EP0430259A1 Multi-valve internal combustion engine
06/05/1991EP0430258A1 Cooling arrangement for multi-valve engine
06/04/1991US5020204 Tool for aligning the connecting of an exhaust manifold to an engine block
05/1991
05/29/1991EP0428691A1 Cylinder heads for internal combustion engines.
05/29/1991CN1051779A Reduced friction piston
05/28/1991US5018568 Lost foam engine block pattern
05/28/1991US5018497 Multiple valve internal combustion engine
05/28/1991US5018485 Intake system for automative engine
05/23/1991DE4042325A1 Combustion system for dual fuel engine
05/22/1991EP0428187A2 Portable engine unit
05/22/1991EP0428186A1 Portable engine unit
05/22/1991EP0252108B1 Heat engine with cooling of the pistons and jackets
05/21/1991US5016592 Cylinder head and valve train arrangement for multiple valve engine
05/16/1991DE4042324A1 Combustion system for dual fuel engine
05/16/1991DE4033843A1 Combustion system for dual fuel engine
05/15/1991EP0427334A1 Two-stroke-cycle engine with variable valve timing
05/14/1991CA1284069C Valve operating mechanism for internal combustion engine
05/10/1991CA2029396A1 Two-stroke-cycle engine with variable valve timing
05/08/1991EP0426421A1 Polymetallic piston-cylinder configuration for internal combustion engines
05/08/1991EP0426302A1 Engine with variable combustion chamber
05/08/1991DE4035016A1 Fuel inlet pipe fitting on engine - consists of outer glass reinforced polyamide component compressing rubber inlet ring fitted into annular groove round flange
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