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US 2004/0168669 A1Published application
Variable cylinder capacity engine
OwnerVianney Rabhiinventor
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OwnerVianney Rabhiinventor
Estimating the term…
The invention concerns a mechanical transmission device for a variable cylinder capacity engine comprising at least a cylinder (10) wherein moves a piston (2), which is integral in its lower portion with a transmission member (3) co-operating through a small-sized rack (37) with a roller bearing guide device (4) and through another large-sized rack (35) with a sprocket wheel (5) linked to a connecting rod (6), a control member (7) comprising a large-sized rack (73) co-operating with the sprocket wheel (5), means for fixing (24, 31) the piston (2) on the transmission member (3) which provide a preload for clamping it and ensure its centring, linking means (11, 12; 71, 72) for rigidifying the transmission (3) and control (7) members and for increasing the flexural strength of the teeth of the large-sized racks (35, 73), and means for lightening (56) the sprocket wheel (5) which maintain its rigidity and load capacity.
A mechanical transmission device for a variable cylinder capacity engine comprising at least one cylinder (10) in which there moves a piston (2) which is secured at its lower part to a transmission member (3) collaborating, on the one hand, by means of a small-sized rack (37) with a rolling guide device (4) and, on the other hand, by means of another, large-sized rack (35), with a toothed wheel (5) connected to a connecting rod (6), a control member (7) comprising a large-sized rack (73) collaborating with the toothed wheel (5), characterized in that it comprises:
Dependencies are inferred from the claim text.