초록 ▼

In a mechanical driving mechanism of a supercharger (1) for an internal combustion engine, which, starting from the internal combustion engine, acts on a rotor shaft (12) of a rotor (14) located on a supercharger housing through a planetary gear assembly (3) that is geared up, a compact construction

In a mechanical driving mechanism of a supercharger (1) for an internal combustion engine, which, starting from the internal combustion engine, acts on a rotor shaft (12) of a rotor (14) located on a supercharger housing through a planetary gear assembly (3) that is geared up, a compact construction of the driving mechanism and a balancing out of vibration between a primary shaft (2) and the rotor shaft (12) can be achieved. For that purpose, a ring gear (6) is propelled by the primary shaft (2), while the rotor shaft (12) that receives a sun wheel (8) is accommodated in a hub part (15) of a pinion cage (16) of the planetary gear assembly (3).

대표청구항 ▼

In a mechanical driving mechanism of a supercharger having a housing (13) containing a rotor (14) connected with a rotor shaft (12) and driven off an internal combustion engine via a planetary gear assembly (3) which operates as a step-up gear, the improvement wherein the planetary gear assembly and

In a mechanical driving mechanism of a supercharger having a housing (13) containing a rotor (14) connected with a rotor shaft (12) and driven off an internal combustion engine via a planetary gear assembly (3) which operates as a step-up gear, the improvement wherein the planetary gear assembly and the supercharger are formed as a unitary structure, the planetary gear assembly including (a) a primary shaft (2) coaxial with the rotor shaft; (b) a ring gear (6) fixed with one end of the primary shaft for rotation therewith; (c) a pinion cage (16) including a hub portion (15) containing an axial opening for supporting the rotor shaft and a plurality of recesses extending parallel to and arranged radially relative to said axial opening; (d) a sun wheel (8) mounted on the rotor shaft within said hub portion; and (e) a planetary wheel (9) concentrically arranged between said ring gear and said sun wheel, said planetary wheel being supported in a floating manner on said pinion cage by guide bolts (11) having ends inserted into said hub portion recesses, said guide bolt ends having a length less than the depth of said recesses to afford limited axial play of said cage with respect to said planetary wheel, whereby said planetary wheel operates as a buffer between said ring gear and said sun gear to prevent vibration of the rotor shaft with respect to the primary shaft.