Combustion engine with variable compression ratio
AssigneeSaab Automobile Aktiebolag
InventorsHans Drangel, Per-Inge Nilsson, Lars Bergsten
Life of this patent
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Abstract
An internal combustion engine (10) is designed with a cylinder section (11) which is pivoted on a crankcase section (13) to provide different compression ratios. The crankcase section (13) is provided with raised lateral walls (21, 22, 24, 25) with upper surfaces (82-85), which lie in the same plane and thereby allow simple assembly of a seal (34) between the cylinder section (11) and crankcase section (13). The lateral walls (21, 22, 24, 25) also enable auxiliary devices for the engine to be easily secured without having to allow for the mobility of the cylinder section (11) relative to the crankcase section (13).
Claims11
An internal combustion engine having a variable compression ratio, which comprises:
- a crankcase section;
- a cylinder section pivotably mounted on the crankcase section, the crankcase section having a plurality of vertically extending lateral walls which enclose the cylinder section, the lateral walls having respective upper surfaces which lie essentially in the same plane;
- and
- a seal arranged between the upper surfaces of the lateral walls and the cylinder section to provide a seal between the crankcase section and the cylinder section.
Dependencies are inferred from the claim text.