A method for repairing a gear (2) having a number of damaged teeth (4, 4′, 4″), wherein the method comprises the step of removing material from the gear (2) hereby providing a pocket structure (28, 28′, 28″, 28′″), wherein said material includes at least one damaged tooth (4, 4′). Said method further comprises the step of providing a segment (12, 12′, 12″, 12′″) to be inserted into the pocket structure (28, 28′, 28″, 28′″), wherein the segment (12, 12′, 12″, 12′″) has a geometry that fits the geometry of the pocket structure (28, 28′, 28″, 28′″). The method comprises the step of radially inserting the segment (12, 12′, 12″, 12′″) into the pocket structure (28, 28′, 28″, 28′″) and attaching radially extending attachment structures (60, 60′) through at least a portion (18, 18′) of the segment (12, 12′, 12″, 12′″) and further into at least a portion (32, 32′) of the underlying structure (64) of the gear (2).

A sprocket system including a sprocket assembled from multiple disc sprockets coaxially aligned and secured together to provide a desired axial width for the sprocket is described. In some embodiments, the sprocket described herein is a hub-less sprocket.

A configurable gear system that includes a set of gear segments; each gear segment of the set of gear segments including a base structure, a gearing surface connected to the base structure and extended along at least one face, and two segment connectors at opposing sides of the gearing surface; and wherein at least a subset of the gear segments interconnect through the gear connector interface into a gearing configuration.

A configurable gear system that includes a set of gear segments; each gear segment of the set of gear segments including a base structure, a gearing surface connected to the base structure and extended along at least one face, and two segment connectors at opposing sides of the gearing surface; and wherein at least a subset of the gear segments interconnect through the gear connector interface into a gearing configuration.

The present disclosure provides a sprocket structure of an engine including a crank sprocket provided in a cylinder block of an engine and driven by a crank shaft, a high pressure pump sprocket configured to receive rotational force from the crank sprocket through a timing belt, and a cam sprocket having an interior installed on a camshaft and an exterior rotatably coupled to the timing belt so as to be driven. Since a tensioner is fixed in a state in which tension is applied to the timing belt through jigs of the crank sprocket and the high pressure pump sprocket and the cam sprocket having a dual-structure, loss of tension is reduced, thus minimizing occurrence of an error of the timing belt to enhance quality of a product.

The present disclosure provides a sprocket structure of an engine including a crank sprocket provided in a cylinder block of an engine and driven by a crank shaft, a high pressure pump sprocket configured to receive rotational force from the crank sprocket through a timing belt, and a cam sprocket having an interior installed on a camshaft and an exterior rotatably coupled to the timing belt so as to be driven. Since a tensioner is fixed in a state in which tension is applied to the timing belt through jigs of the crank sprocket and the high pressure pump sprocket and the cam sprocket having a dual-structure, loss of tension is reduced, thus minimizing occurrence of an error of the timing belt to enhance quality of a product.

A sprocket assembly is provided. The assembly includes a sprocket frame having a central body and a first ledge portion body. The first ledge portion has a first aperture extending therethrough. The assembly further includes a first removable tooth having a first tip portion, first and second landing portions, and a first extension portion. The first tip portion has first and second sides and first and second ends. The first extension portion extends from the second end and has an aperture extending therethrough. The assembly further includes a first bolt extending through the first aperture in the first ledge portion and the aperture in the first extension portion to removably couple the first extension portion to the first ledge portion.

A sprocket assembly is provided. The assembly includes a sprocket frame having a central body and a first ledge portion body. The first ledge portion has a first aperture extending therethrough. The assembly further includes a first removable tooth having a first tip portion, first and second landing portions, and a first extension portion. The first tip portion has first and second sides and first and second ends. The first extension portion extends from the second end and has an aperture extending therethrough. The assembly further includes a first bolt extending through the first aperture in the first ledge portion and the aperture in the first extension portion to removably couple the first extension portion to the first ledge portion.

Pinion formed by two joinable parts mountable on a shaft includes a substantially semi-circular first portion of the pinion; a substantially semi-circular second portion of the pinion; the first portion has a first joining surface and a first portion of a hole concentric with the pinion; the second portion has a second joining surface and a second portion of a hole concentric with the pinion; the first joining surface is adapted to be joined to the second joining surface by means of connection means; characterized in that the connection means includes a first bushing and a second bushing; the first bushing is fixed onto said first portion and protrudes from the first joining surface; said second bushing is fixed onto the first or second portion and protrudes from the first or second joining surface.

Pinion formed by two joinable parts mountable on a shaft includes a substantially semi-circular first portion of the pinion; a substantially semi-circular second portion of the pinion; the first portion has a first joining surface and a first portion of a hole concentric with the pinion; the second portion has a second joining surface and a second portion of a hole concentric with the pinion; the first joining surface is adapted to be joined to the second joining surface by means of connection means; characterized in that the connection means includes a first bushing and a second bushing; the first bushing is fixed onto said first portion and protrudes from the first joining surface; said second bushing is fixed onto the first or second portion and protrudes from the first or second joining surface.