Abstract: Assembly for a synchronization unit of a variable ratio gear transmission. Assembly has a synchronizer ring and a friction ring. The friction ring has a friction surface and an installation surface and the synchronizer ring has a contact surface directed toward the installation surface. To allow a high efficiency of the synchronizing unit and simultaneously a functionally safe and comfortable operation of the variable ratio gear transmission, the synchronizer ring and the friction ring are configured and arranged such that the geometrical shape of the installation surface of the friction ring differs from the geometrical shape of the contact surface of the synchronizer ring in a relief state of a synchronizing process; and that the geometrical shape of the installation surface of the friction ring corresponds to the geometrical shape of the contact surface of the synchronizer ring in a load state of the synchronizing process.

Abstract: Synchronizing device (1) of a gear changing transmission for a vehicle. The synchronizing device includes an inner synchronizer ring (2), a middle synchronizer ring (3) and an outer synchronizer ring (4), wherein in the operating mode the outer synchronizer ring (4). The inner synchronizer ring (2) includes a first conical inner ring body (201) with a first inner surface of the inner ring (2011) and a first outer surface of the inner ring (2012), which each bound the first inner ring body (201) in a radial direction extending to an axial ring axis (8), wherein the first inner surface of the inner ring (2011) extends at a first inner angle (?2011) of the inner ring and the first outer surface of the inner ring (2012) at a first outer angle (?2012) of the inner ring to the ring axis (8). In order to further increase the synchronizing moment to be transmitted the first inner angle (?2011) of the inner ring is smaller than the first outer angle (?2012) of the inner ring according to the invention.

Abstract: Assembly for synchronization unit of gear-changing transmission includes a friction ring and synchronizer ring. Friction ring has a conical friction ring body with friction surface and an installation surface that respectively bound friction ring body in a radial peripheral direction extending perpendicular to an axial friction ring axis. Friction surface extends at a predefinable friction angle and installation surface extends at a predefinable installation angle, in each case conically. Synchronizer ring has a contact surface corresponding to installation surface of friction ring. Synchronizer ring and friction ring are adapted so that contact surface of synchronizer ring contacts installation surface of friction ring, and friction surface of friction ring is in rubbing contact with a gear wheel during a synchronization process where synchronizer ring is displaced in a direction of a gear wheel to be synchronized.

Abstract: Friction ring for a synchronization unit of a gear changing transmission. The friction ring, when in an uninstalled state, is circumferentially pre-loaded and includes an annular front side, an annular rear side, a conical inner friction surface, a conical outer installation surface, and a first separation surface facing and in contact with a second separation surface and defining a circumferential separation area in the friction ring. The friction ring is prevented from contracting radially and circumferentially by said contact and is capable of expanding radially and circumferentially while being circumferentially pre-loaded.

Abstract: Synchronizing device (1) of a gear changing transmission for a vehicle. The synchronizing device includes an inner synchronizer ring (2), a middle synchronizer ring (3) and an outer synchronizer ring (4), wherein in the operating mode the outer synchronizer ring (4). The inner synchronizer ring (2) includes a first conical inner ring body (201) with a first inner surface of the inner ring (2011) and a first outer surface of the inner ring (2012), which each bound the first inner ring body (201) in a radial direction extending to an axial ring axis (8), wherein the first inner surface of the inner ring (2011) extends at a first inner angle (?2011) of the inner ring and the first outer surface of the inner ring (2012) at a first outer angle (?2012) of the inner ring to the ring axis (8). In order to further increase the synchronizing moment to be transmitted the first inner angle (?2011) of the inner ring is smaller than the first outer angle (?2012) of the inner ring according to the invention.

Abstract: Synchronizing device (1) of a gear changing transmission for a motor vehicle. The synchronizing device (1) of a gear changing transmission for a motor vehicle including an inner synchronizer ring (2), a middle synchronizer ring (3) and an outer synchronizer ring (4). The middle synchronizer ring (3) includes a first conical middle ring body (301) with a first inner surface of the middle ring (3011) and a first outer surface of the middle ring (3012), which each bound the first middle ring body (301) in a radial direction extending to the axial ring axis (8), wherein the first inner surface of the middle ring (3011) extends at a first inner angle (?3011) of the middle ring and the first outer surface of the middle ring (3012) at a first outer angle (?3012) of the inner ring to the ring axis (8). In order to further increase the synchronizing moment to be transmitted the first inner angle (?3011) of the middle ring and the first outer angle (?3012) of the middle ring are different according to the invention.

Abstract: The invention relates to a friction ring (1) for a synchronizing unit (2) of a variable ratio gear transmission. The friction ring (1) comprises a conical friction body having an inner friction surface and an outer installation surface which each bound the friction ring body in a radial peripheral direction extending perpendicular to an axial friction ring axis (4). The friction ring body comprises a projection (9) for restraining a movement of the friction ring (1) relative to a synchronizer ring (7) substantially along the friction axis in operation in the synchronizing unit (2).

Abstract: Assembly for a synchronization unit of a variable ratio gear transmission. Assembly has a synchronizer ring and a friction ring. The friction ring has a friction surface and an installation surface and the synchronizer ring has a contact surface directed toward the installation surface. To allow a high efficiency of the synchronizing unit and simultaneously a functionally safe and comfortable operation of the variable ratio gear transmission, the synchronizer ring and the friction ring are configured and arranged such that the geometrical shape of the installation surface of the friction ring differs from the geometrical shape of the contact surface of the synchronizer ring in a relief state of a synchronizing process; and that the geometrical shape of the installation surface of the friction ring corresponds to the geometrical shape of the contact surface of the synchronizer ring in a load state of the synchronizing process.

Abstract: The invention relates to a friction ring (1) for a synchronization unit of a gear changing transmission. The friction ring (1) comprises a conical friction ring body (4) having an inner friction surface (401) and an outer installation surface (402) which each bound the friction ring body (4) in a radial direction extending perpendicular to an axial friction ring axis (6). The friction ring body (4) is interrupted in a circumferential direction (U) extending around the friction ring axis (6) by a separation point (5) in such a way that a first separation surface (7) and a second separation surface (8) are formed at the separation point (5).

Abstract: Assembly for synchronization unit of gear-changing transmission includes a friction ring and synchronizer ring. Friction ring has a conical friction ring body with friction surface and an installation surface that respectively bound friction ring body in a radial peripheral direction extending perpendicular to an axial friction ring axis. Friction surface extends at a predefinable friction angle and installation surface extends at a predefinable installation angle, in each case conically. Synchronizer ring has a contact surface corresponding to installation surface of friction ring. Synchronizer ring and friction ring are adapted so that contact surface of synchronizer ring contacts installation surface of friction ring, and friction surface of friction ring is in rubbing contact with a gear wheel during a synchronization process where synchronizer ring is displaced in a direction of a gear wheel to be synchronized.

Abstract: The invention relates to a friction ring for a synchronizer unit (2) of a gear changing transmission, which friction ring includes a conical friction ring body (3) having an inner friction surface (301) and an outer installation surface (302) preferably configured as a further friction surface which friction surface (301) and installation surface (302) respectively bound the friction ring body (3) in a radial circumferential direction (U) extending perpendicular to a axial friction ring axis (4) in which the inner friction surface (301) conically extends along the friction ring axis (4) at a pre-determinable friction angle (?1) and the outer installation surface (302) also conically extends along the friction ring axis (4) at a pre-determinable installation angle (?2) respectively. In accordance with the invention the friction angle (?1) is different from the installation angle (?2). Furthermore, the invention relates to a synchronizer unit (2), as well as to a gear changing transmission for a vehicle.

Abstract: The invention relates to a synchronizing ring for a synchronization device of a gear changing transmission, wherein a guiding element extends in a region between an outer surface of the means providing security against rotation and the outer installation surface in the circumferential direction (U) with respect to a distance from the axial synchronizing ring axis.

Abstract: The invention relates to a friction ring (1) for a synchronizing unit (2) of a variable ratio gear transmission. The friction ring (1) comprises a conical friction body having an inner friction surface and an outer installation surface which each bound the friction ring body in a radial peripheral direction extending perpendicular to an axial friction ring axis (4). The friction ring body comprises a projection (9) for restraining a movement of the friction ring (1) relative to a synchronizer ring (7) substantially along the friction axis in operation in the synchronizing unit (2).

Abstract: A synchronizer ring (1) for a synchronizer of a switchable gear changing transmission, includes a ring body (2) having a synchronizer ring axis (3), which ring body has an inner friction surface (4) and an outer installation surface (5), wherein the inner friction surface (4) and the outer installation surface (5) bound the ring body (2) as jacket surfaces.

Abstract: The invention relates to a friction ring for a synchronizer unit (2) of a gear changing transmission, which friction ring includes a conical friction ring body (3) having an inner friction surface (301) and an outer installation surface (302) preferably configured as a further friction surface which friction surface (301) and installation surface (302) respectively bound the friction ring body (3) in a radial circumferential direction (U) extending perpendicular to a axial friction ring axis (4) in which the inner friction surface (301) conically extends along the friction ring axis (4) at a pre-determinable friction angle (?1) and the outer installation surface (302) also conically extends along the friction ring axis (4) at a pre-determinable installation angle (?2) respectively. In accordance with the invention the friction angle (?1) is different from the installation angle (?2). Furthermore, the invention relates to a synchronizer unit (2), as well as to a gear changing transmission for a vehicle.

Abstract: A synchronizing ring includes a conical ring body with an inner friction surface and an outer installation surface, which bound the ring body and extend conically. The ring body is bounded in the axial direction at a largest cone diameter by a gear wheel surface with a gear wheel extending substantially perpendicular to the synchronizing ring axis and is bounded at a smallest cone diameter by a surface. A recess is provided at the surface of the synchronizing ring for fixing the inner ring with a security against rotation of the inner ring. A raised or displaced portion is provided at the surface of the synchronizing ring and an undercut is provided at the inner ring, so that the displaced portion can engage in the undercut in such a way that an overall height of the synchronizing ring set is not enlarged by the displaced portion.

Abstract: The invention relates to a synchronizing ring (1) for a synchronization device (2) of a gear changing transmission, including a conical ring body (3) with an inner friction surface (4) and an outer installation surface (5) bounding the ring body (3) in a radial circumferential direction (U), extending perpendicular to an axial synchronizing ring axis (6) and extending conically at a predefinable angle of friction about the axial synchronizing ring axis (6) of the synchronizing ring. In the arrangement the ring body (3) is bounded in the axial direction at a largest cone diameter by a gear wheel surface (7) with a gear wheel (71) extending substantially perpendicularly to the synchronizing ring axis (6) and at a smallest cone diameter by a hub surface (8).

Abstract: The invention relates to a synchronising ring for a synchronising apparatus of a change speed transmission, including a synchronising ring body with a friction lining, the friction lining being provided in a pre-determinable width between a first axial boundary surface of the friction lining and a second axial boundary surface of the friction lining in the circumferential direction around an axial synchronising ring axis of the synchronising ring on the friction surface, in such a way that the friction lining extends conically at a pre-determinable friction angle ? about the synchronising ring axis. In this arrangement a macrogeometric groove is provided in the friction lining for the taking up and/or for the transport of a fluid in such a way that a flow connection is created by the macrogeometric groove for the fluid between the first axial boundary surface and the second axial boundary surface.

Abstract: The invention relates to a synchronising ring for a synchronising apparatus of a switchable gear changing transmission, including a conical ring body (2) with an inner friction surface (3) and an outer installation surface, which bound the ring body 2 radially in a peripheral direction in each case and extend conically at a pre-determined friction angle about an axial synchronising ring axis (4) of the synchronising ring (1), wherein the ring body (2) is bounded in the axial direction at a largest cone diameter by a gear wheel surface (5) with a gear wheel (6) extending substantially perpendicular to the synchronising ring axis (4) and is bounded at a smallest cone diameter by a surface (7) and wherein a recess (9) is provided at the surface (7) of the synchronising ring (1) for fixing the inner ring (8) with a security against rotation (10) provided at the inner ring (8), in particular in the form of a lug (10).