Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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F02B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
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F02B75/16
Engines characterised by number of cylinders, e.g. single-cylinder engines
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F02B75/24
with cylinders arranged oppositely relative to main shaft and of "flat" type
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F02B75/243
with only one crankshaft of the "boxer" type, e.g. all connecting rods attached to separate crankshaft bearings
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F02B75/243

Internal combustion engine including through-bolt aperture and single through-bolt
12480438 · 2025-11-25 · ·

An internal combustion engine includes a first cylinder block, a first head, a first overhead structure, a second cylinder block, a second head, a second overhead structure, a first through-bolt aperture, and a first through-bolt. The first head is in contact with the first cylinder block. The first overhead structure is in contact with the first head opposite the first cylinder block. The second cylinder block is in contact with the first cylinder block opposite the first head. The second head is in contact with the second cylinder block opposite the first cylinder block. The second overhead structure is in contact with the second head opposite the second cylinder block. The first through-bolt aperture is defined through the first overhead structure, the first head, the first cylinder block, the second cylinder block, the second head, and the second overhead structure.

Internal combustion engine having common engine parts and method of forming same
12607144 · 2026-04-21 · ·

An internal combustion engine, including a piston, a cylinder, and an output shaft, wherein the piston is arranged for reciprocating motion within the cylinder, driven by combustion, and the piston is coupled to the output shaft by a coupling such that said reciprocating motion of the piston drives rotation of the output shaft, wherein the engine has increased engine part commonality. The internal combustion engine may include a first cylinder bank and a second cylinder bank, the first cylinder bank having a first cylinder head, the second cylinder bank having a second cylinder head, and the first cylinder head and the second cylinder head being formed as common parts such that they are interchangeable. An internal combustion engine, including a piston, a cylinder, and an output shaft, wherein the piston is arranged for reciprocating motion within the cylinder, driven by combustion, and the piston is coupled to the output shaft by a coupling such that said reciprocating motion of the piston drives rotation of the output shaft, wherein the engine includes a crankcase formed of a plurality of separable like parts, each of the like parts being cast as a common part.