Patent ID: 8056514

Claim:
A pressing device which maintains raceways ( 48 , 160 to 165 ) of main moving components ( 3 , 5 , 7 , 40 ) of a variable volumetric ratio engine permanently in contact with one another and with faces on which they bear in a cylinder block, comprising: means for pressure secured to the cylinder block ( 100 ) that exert a pressure force on a control rack ( 7 ) comprising a toothed sector ( 75 ) having teeth ( 74 ), and pressure force is applied to a bearing surface ( 78 ) formed on a lower portion of said rack ( 7 ), said bearing surface ( 78 ) formed on the lower portion of the control rack ( 7 ) being placed sufficiently low so that a force resulting from tangential force applied to a toothed wheel ( 5 ) by a transmission member ( 3 ) and from a pressure angle of toothings ( 34 , 74 , 51 , 52 ) on the one hand, and from the raceways ( 164 , 165 ) on the other hand, is always situated above a bearing point (P) of the means for pressure.