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| Number | Title | Issue Date |
| 7334558 | Slide body internal combustion engine An internal combustion engine includes a slide body having a plurality of rigidly mounted pistons on opposite ends of the slide body. The slide body reciprocates and is connected to a flywheel by shaft and bearing which extends through an angled track in the slide b... | 02/26/2008 |
| 7191742 | Diesel aircraft engine The present invention is an engine, including two banks of cylinders in a flat, opposed cylinder arrangement and a crankshaft having a plurality of paired throws, the two throws of each respective pair of throws being disposed adjacent to each other and coplanar wit... | 03/20/2007 |
| 7134418 | Four-stroke internal combustion engine A four-stroke internal combustion engine is provided that is capable of use in many power tools, including those power tools subjected to tippable applications. The engine includes an oil reservoir and a crank chamber separated by a divider. The divider includes a s... | 11/14/2006 |
| 7069898 | Liquid-cooled engine To simplify the connection of a cylinder barrel and a cylinder head to, a crankcase and to reduce the weight of an engine. A liquid-cooled engine is provided with the crankcase wherein a cylinder barrel having a water jacket on the cylinder side for cooling is conne... | 07/04/2006 |
| 7066140 | Crankcase scavenged four-stroke engine A crankcase scavenged and lubricated four-stroke engine (1) comprising especially: a mixture-preparation device (15) for supplying an air-fuel-lubricant mixture; an intake channel (16) connecting to the crankcase or cylinder to supply at least a... | 06/27/2006 |
| 6082314 | Multiple circular slider crank reciprocating piston internal combustion engine The present invention relates to internal combustion engines, particularly to a reciprocating piston type internal combustion engine with a crank and multiple circular slide blocks, formed by substituting connecting rods with circular slide blocks. The en... | 07/04/2000 |
| 5058535 | Parallel flow coolant circuit for internal combustion aircraft engines An improved cooling system for an internal combustion aircraft engine having horizontally opposed cylinders. The cooling system comprises a coolant design which delivers and removes coolant in a parallel circuit. The coolant flows from a common main coola... | 10/22/1991 |
| 5052354 | Horizontally-opposed multiple-cylinder engine with a gas baffle A horizontally-opposed multiple-cylinder engine provided with a cylinder block having two banks respectively including cylinders in which pistons are moved to bottom dead centers in order. A gas baffle is disposed between the lower portion of a crank cham... | 10/01/1991 |
| 4940026 | Internal combustion engine with balancing forces An internal combustion engine of the opposed cylinder type wherein piston and cylinder assemblies are located in directly opposed relation to one another such that vibration is significantly reduced or eliminated due to the placement, weight, volumetric d... | 07/10/1990 |
| 4708107 | Compact pressure-boosted internal combustion engine A combustible mixture is compressed in the crankcase of a four-stroke cycle engine and forced into a boost plenum which houses the camshaft. The compressed mixture is metered by a throttle to intake valves of the engine. The engine is constructed from ide... | 11/24/1987 |
| 4632072 | Low vibration engine construction The present invention provided a balancing arrangement for an eight cylinder horizontally opposed internal combustion engine construction having a housing and a four throw crank shaft rotatably mounted within the housing. A pinion is coaxially attached to... | 12/30/1986 |
| 4541370 | Intake and exhaust passages in cylinder heads of an opposed-cylinder engine Intake and exhaust passages in cylinder heads of an opposed six-cylinder engine. The cylinder heads are disposed on opposite sides of a crankcase including cylinder blocks. Intake valves and exhaust valves in each cylinder are disposed in the same arrange... | 09/17/1985 |
| 4392460 | Parallel inherently balanced rotary valve internal combustion engine An internal combustion engine having banks of oppositely disposed cylinders is disclosed having a rotary valve for each bank which directs the flow to supply the inlet air and to dispose to the exhaust gases. Each of the rotary valves can be liquid cooled... | 07/12/1983 |
| 4217865 | Internal combustion engine An internal combustion engine having a piston assembly such that gaseous flow into a cylinder is through the piston assembly and wherein all gaseous flow in a cylinder is in a single direction. The piston assembly includes inner and outer piston members w... | 08/19/1980 |
| 4211190 | Groove guided piston linkage for an internal combustion engine A conventional internal combustion engine cylinder is provided with an integral downwardly extending housing formed by spaced wall portions tapering outwardly to an annular bottom end. A piston is reciprocable in the cylinder and the cylinder is provided ... | 07/08/1980 |
| 4156410 | Internal combustion reciprocating engine An internal combustion engine having a housing defining a pair of axially aligned and opposing cylinders with a lubricant chamber therebetween, a stationary piston in the housing extending through the lubricant chamber and having opposite ends disposed wi... | 05/29/1979 |
| 4026377 | Vertical crankshaft engine having longitudinally opposed cylinders A riding tractor with an elongated longitudinal frame is provided with a vertical crankshaft internal combustion engine having opposed pistons aligned in the longitudinal vertical plane of the tractor. In operation of the engine a dynamic force couple is ... | 05/31/1977 |
