Abstract:
A gear assembly (8) for mounting on a shaft (12) is described. The gear assembly (8) comprises: a gear wheel (80) configured to be rotationally supported with respect to the shaft (12) and a multiple-plate wet clutch (10). The wet clutch (10) comprises: a front part (34), a back part (42), a clutch basket attached to the gear wheel (80), and a clutch pack (20) connecting the clutch hub (16) and the clutch basket (18) and positioned between the front part (34) and the back part (42). The clutch pack (20) has: an unengaged state in which the clutch hub (16) and the clutch basket (18) are unlocked, and an engaged state in which the clutch hub (16) and the clutch basket (18) are locked together, wherein the back part (42) is spaced apart from the gear wheel (80) in the unengaged state, and the back part (42) engages the gear wheel (80) in the engaged state.
Abstract:
A rotary union (30) for connecting to a shaft (18) of a gearbox (10) is proposed. The rotary union (30) comprises: a female part (32), a male part (34) rotatable relative to the female part (32) on an axis of rotation (198), and a first primary conduit (36). The first primary conduit (36) comprises: a female conduit portion (48) formed by the female part (32), and a male conduit portion (50) formed by the male part (34). The rotary union (30) forms a first coupling (52) between the female conduit portion (48) and the male conduit portion (50). The female part (32) further forms an annular seat (82) facing the male part (34). The rotary union (30) further comprises: a primary seal (78) positioned in the annular seat (82), wherein the primary seal (78) is a dynamic seal configured to radially seal to the male part (34) and to shift in position away from the first coupling (52) along the axis of rotation (198) and axially seal to the female part (32) at an increase in pressure of the first primary fluid in the first coupling (52).
Abstract:
A wet clutch (10) for mounting on a shaft (12) having an internal shaft conduit (88) for a hydraulic fluid is provided. The wet clutch (10) comprises: a clutch hub (16) configured to be mounted on the shaft (12), a clutch basket (18) configured to be rotationally supported relative to shaft (12), and a clutch pack (20) operationally connecting the clutch hub (16) and the clutch basket (18). The wet clutch (10) further comprises: a front part (34) configured to be fixed relative to the shaft, an actuator (22) supported by the front part (34) and radially spaced apart from the shaft (12), wherein the actuator (22) is configured to operationally connected to the shaft conduit (88). The wet clutch (10) further comprises: one or more relief valves (102) connected to the actuator and configured to release the hydraulic fluid.
Abstract:
The invention relates to a combustion air supply arrangement, comprising an air intake duct (1) of an internal combustion engine (2), and a compressor (3) arranged in said air intake duct (1), and a first throttle (8) located down-stream the compressor (3) and upstream the internal combustion engine (2) and arranged to change the flow area of said air intake duct (1) between the compressor (3) and the internal combustion engine (2), the same furthermore comprising a second throttle (9), which is located upstream the compressor (3) and which is arranged to change the flow area of the air intake duct (1) upstream the compressor (3). Furthermore, the compressor is a centrifugal compressor, the rotational speed of which is directly dependent on the rotational speed of the internal combustion engine (2), and that the combustion air supply arrangement is arranged in such a way that the sucked-in air is compressed once between the second throttle and the internal combustion engine (2).
Abstract:
A gearbox (10), or gearbox assembly (10), for a road vehicle is proposed comprising: a gearbox case (12), a rigid first shaft (14) and a rigid second shaft (16), wherein the first shaft (14) has a first end (102), or rear end, an and a second end (104), or forward end, the first end is configured to receive torque. The gearbox (10) further comprises: a plurality of first gear assemblies (20) located inside the gearbox case (12), wherein each first gear assembly (20) comprises: a first gear wheel (22) centered, or positioned, on the first shaft (14), a second gear wheel (24) centered, or positioned, on the second shaft (16). The gearbox (10) further comprises a starter-gear wheel (106) centered, or positioned, on and rigidly attached to the first shaft (14), wherein the plurality of first gear assemblies (20) are located between the starter-gear wheel (106) and the first end (102) of the first shaft (14).
Abstract:
A gearbox (10) is provided having: a gearbox case (12), a first shaft (14) for receiving torque, a second shaft (16) for transferring torque inside the gearbox case (12), and a third shaft (18) for delivering torque. The gearbox further has three or more first gear assemblies (20) located inside the gearbox case (12), wherein each first gear assembly (20) comprises a first gear wheel (22) centered on the first shaft (14), a second gear wheel (24) centered on the second shaft (16), and a wet clutch (26) configured for operationally connecting the first shaft (14) and the second shaft (16). The gearbox also has three or more second gear assemblies (30) located inside the gearbox case (12), wherein each second gear assembly (30) comprises a third gearwheel (32) centered on the second shaft (16), a fourth gear wheel (34) centered on the third shaft (18), and a wet clutch (36) configured for operationally connecting the second shaft (16) and the third shaft (18).
Abstract:
In a first aspect, the invention relates to an exhaustcleaning device (1) for internal combustion engines having varying exhaust amount, which is intended to constitute a part of an exhaust system co-operating with an engine and which comprises a main converter (2) and a pre-converter (3), which is located upstream the main converter (2), seen in the direction that the exhaust fumes are intended to pass the exhaust-cleaning device. The exhaust-cleaning device (1) is distinguished by the fact that a bypass (8) is arranged in the area of the pre-converter (3), which bypass includes a first opening (10), which mouths upstream the pre-converter (3), and a second opening (11), which mouths downstream the pre-converter (3) and upstream the main converter (2), so that at least a part of the exhaust fumes should be able to pass past the pre-converter (3) without passing through the same. In a second aspect, the invention also relates to an extension for an exhaustcleaning device. The invention also relates to a vehicle comprising an exhaust-cleaning device (1) according to the invention.