1. A drive arrangement for an inboard-outboard drive engine of a watercraft, the drive arrangement comprising:
a drive unit (2) with an upper part (3) arranged in a hull (1) of the watercraft and a lower part (4) which extends through a sealed opening in the hull (1) into surrounding water such that a drivetrain extends through the drive unit (2), by which at least one propeller, supported by the lower part (4), can be driven by a motor coupled to the upper part (3),
the upper part (3) being in contact with a carrier system which, by virtue of a plurality of supporting units (12A-12D), supports reaction forces and torques produced in the drive unit (2) in a longitudinal transverse direction and a vertical direction relative to the hull (1),
the carrier system comprising at least four supporting units (12A-12D), each with at least one supporting element, and the at least four supporting units (12A-12D) being positioned uniformly around the upper part (3) of the drive unit (2) and connected thereto, and
the at least four supporting units (12A-12D) being positioned in equal numbers on two sides of the upper part (3) of the drive unit (2) and each of the two sides are, in each case, connected to the upper part (3), via a respective common carrier arm (11A, 11B), the carrier arms (11A, 11B) comprising, in each case, a hollow profile with a rectangular cross-section and being, in each case, fixed to the upper part (3) via a attachment (18A, 18B).
2. The drive arrangement according to claim 1, wherein the carrier arms (11A, 11B) are provided with transverse ribs (17).
3. The drive arrangement according to claim 1, wherein each supporting element is a rubber mounting (15) that acts on two sides.
4. The drive arrangement according to claim 1, wherein a plate arrangement (5) is provided in the opening of the hull (1), which carries the drive unit (2), and a static seal (13) is provided between the plate arrangement (5) and the hull (1) and a flexible seal (14) is provided between the plate arrangement (5) and the drive unit (2).
5. The drive arrangement according to claim 1, wherein the lower part (4) of the drive unit (2) is rotatable relative to the upper part (3).
6. The drive arrangement according to claim 1, wherein two propellers are supported by the lower part (4) of the drive unit (2), and the two propellers rotate in opposite directions during drive of the watercraft.
7. An engine-driven watercraft comprising at least one drive arrangement comprising:
a drive unit (2) with an upper part (3) arranged in a hull (1) of the watercraft and a lower part (4) extending through a sealed opening in the hull (1) into surrounding water such that a drivetrain extends through the drive unit (2), by which at least one propeller supported by the lower part (4) can be driven by a motor coupled to the upper part (3),
the upper part (3) being in contact with a carrier system which, by virtue of a plurality of supporting units (12A-12D), supports a reaction force and a torque produced in the drive unit (2) in a longitudinal transverse direction and a vertical direction relative to the hull (1),
the carrier system comprises at least four supporting units (12A-12D), each with at least one supporting element, and the at least four supporting units (12A-12D) being positioned uniformly around the upper part (3) of the drive unit (2) and connected thereto, and the at least four supporting units (12A-12D) being positioned on opposed sides of the upper part (3) of the drive unit (2) and,
each of the two sides are, in each case, connected to the upper part (3) via a respective common carrier arm (11A, 11B),
the carrier arms (11A, 11B) comprising, in each case, a hollow profile with a rectangular cross-section and being, in each case, fixed to the upper part (3) via a trapezoidal attachment (18A, 18B).
8. A drive arrangement for an inboard-outboard drive engine of a watercraft, the drive arrangement comprising a drive unit (2) with an upper part (3) supported within a hull (1) of the watercraft and a lower part (4) extending through a sealed opening in the hull (1) to an exterior of the watercraft such that drive, from a motor, flows through the upper part (3) of the drive unit (2) to the lower part (4) of the drive unit (2) and to at least one propeller, supported on the lower part (4) of the drive unit (2),
the upper part (3) of the drive unit (2) being supported on the hull (1) by at least four supporting units (12A-12D), which support a reaction force and a torque produced by the drive unit (2) in a longitudinal, transverse direction and a vertical direction relative to the hull (1),
the at least four supporting units (12A-12D) are positioned uniformly about the upper part (3) of the drive unit (2) between the upper part (3) of the drive unit (2) and the hull (1),
a carrier arm (11A, 11B) being located on opposite transverse sides of the drive unit (2), and the carrier arms (11A, 11B) comprise a hollow profile with a rectangular cross-section, the carrier arms (11A, 11B) are fixed to the upper part (3) of the drive unit (2) via a trapezoidal attachment (18A, 18B), and
two of the four supporting units (12A-12D) are fixed to the hull (1) and support opposite ends of the respective carrier arm (11A, 11B).
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
We claim:
1. A biomedical implant comprising:
a matrix,
coated nanofillers; and
wherein the coated nanofillers are dispersed in the matrix to form a composite.
2. The biomedical implant of claim 1 wherein the matrix is a polymer.
3. The biomedical implant of claim 1 wherein the nanofillers comprise of an oxide.
4. The biomedical implant of claim 1 wherein the matrix is a metal.
5. The biomedical implant of claim 1 wherein the coating of the coated nanofillers comprise an organic substance.
6. The biomedical implant of claim 1 wherein the composite exhibits a wear rate which is different by 20% or more from the wear rate for a composite comprising of micron scale filler.