Supercharger
AssigneesHKS Co., Ltd., Nsk Ltd.
InventorsHiroyuki Hasegawa, Shinya Yoshimoto, Hiroyuki Itoh, Satoshi Dairokuno
Life of this patent
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Abstract
A speed increasing gear used in a supercharger has a center roller connected to an output shaft, an outer wheel arranged eccentric to the center roller, and a plurality of intermediate rollers arranged within an annular space in which a width of the center roller with respect to a diametrical direction is uneven with respect to a circumferential direction of the center roller. The annular space is provided between the center roller and the outer wheel, and a pivot of at least one intermediate roller is movably arranged in a circumferential direction and a radial direction of the center roller.
Claims20
A supercharger in which a rotation speed of an input shaft is increased by a speed increasing gear so as to be transmitted to an output shaft, and an impeller is provided in the output shaft, wherein the speed increasing gear comprises:
- a center roller connected to the output shaft;
- an outer wheel arranged eccentric to the center roller;
- and
- a plurality of intermediate rollers arranged within an annular space in which a width of the center roller with respect to a diametrical direction is uneven with respect to a circumferential direction of the center roller,
- wherein said annular space is provided between a driven side cylindrical surface corresponding to an outer circumferential surface of the center roller and a drive side cylindrical surface corresponding to an inner circumferential surface of the outer wheel,
- wherein respective outer circumferential surfaces of said intermediate rollers are formed as power transmitting cylindrical surfaces, and
- wherein a pivot of at least one of said intermediate rollers is movably arranged in a circumferential direction and a radial direction of the center roller.
Dependencies are inferred from the claim text.