Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 4079704 | Internal combustion engine An internal combustion engine has a cylinder head formed with a cooling liquid passageway and an air space. The cylinder head has a combustion chamber cooled by cooling liquid flowing through the passageway and an exhaust valve and exhaust port passage co... | 03/21/1978 |
| 4075999 | Hard facing alloy for engine valves and the like A hard surfacing, high temperature alloy comprising chromium and molybdenum in a nickel base having up to about 3.5 weight percent carbon, and structures surfaced therewith.... | 02/28/1978 |
| 4068630 | Engine with noise reducing exhaust valve arrangement An arrangement for reduction of exhaust noise in an internal combustion engine comprising in a preferred embodiment a two-cycle diesel engine having two or more exhaust valves per cylinder and separate cam lobes for actuating two groups of one or more val... | 01/17/1978 |
| 4064849 | Internal combustion engine Intake arrangement of an internal combustion engine comprises an air intake passageway and an air-fuel mixture intake passageway with its port arranged radially inwardly of the air intake passageway. Port opening period of the air-fuel mixture intake port... | 12/27/1977 |
| 4050422 | Apparatus for supplying rich air/fuel mixture in an internal combustion engine An auxiliary combustion chamber at least partially embedded in the cylinder head of an internal combustion engine adjacent the intake valve of a main combustion chamber and having a spark plug positioned in the auxiliary chamber and unvalved inlet and out... | 09/27/1977 |
| 4036202 | Internal combustion engines An internal combustion engine has a cylinder containing a piston, a valve controlled inlet port for air/fuel mixture and an ignition sparking plug. A branch passage leads from the inlet port to a location adjacent the plug, the branch passage being opened... | 07/19/1977 |
| 4035204 | Method of carburizing the inner surface of a steel valve seat To carburize the inner surface of hollow, narrow work pieces, such as valve seats in blind bores, and avoid the use of salt baths which have residues containing Prussic acid, a mandrel is made fitting with little clearance in the order of 0.1 mm into the ... | 07/12/1977 |
| 4033303 | Engine exhaust valve cooling A cylinder head having an exhaust valve port comprising a throat defined by a wall of substantially circular cross section and a bevelled valve seat circumscribing the wall. The bevelled valve seat has an axially extending annular portion adapted to be en... | 07/05/1977 |
| 4023543 | Internal combustion engine An engine with a main combustion chamber, an auxiliary combustion chamber and a torch-nozzle interconnecting the main and auxiliary combustion chambers, comprises an auxiliary inlet valve that is operated by a rocker arm for operating a main inlet valve a... | 05/17/1977 |
| 4011852 | Cylinder head for internal combustion engines A cylinder head for internal combustion engines in which at least two adjacent passages for inlet and/or outlet valves are provided with seating rings. The outer peripheral surface of each seating ring which surface faces toward the adjacent seating ring ... | 03/15/1977 |
| 3995609 | Internal combustion engine fuel control arrangement An internal combustion engine having an air flow sensitive fuel sink-distribution-source arrangement that intercepts the liquid fuel film on the intake passage wall adjacent the intake port entry to the combustion chamber and accumulates this fuel on redu... | 12/07/1976 |
| 3963016 | Valve chests An overhead valve chest for an internal combustion engine with a cylindroconical portion adjacent to the bottom seating of the chest within the cylinder-head and comprising a sealing ring overlapping said cylindro-conical portion and mounted in a groove t... | 06/15/1976 |
