1. A turbocharger comprising;
a shaft (14),
a housing (12),
a turbine wheel (20) and
a compressor wheel (22) mounted onto the shaft, and
at least a rolling bearing (18) disposed between the shaft and the housing and comprising;
an inner ring (26),
an outer ring (28) and
at least one row of rolling elements (30) disposed into a rolling space (40) defined between the rings, and wherein
a damping space (38) is defined between an outer surface (28a) of the outer ring and a bore (16) of the housing inside which a lubricant is located.
2. The turbocharger according to claim 1, further comprising at least two sealing means (42, 44; 50, 52) closing at least the rolling space (40).
3. The turbocharger according to claim 2, wherein the sealing means (42, 44) close the damping and the rolling spaces.
4. The turbocharger according to claim 2, wherein the sealing means (42, 44) are disposed radially between the shaft (14) and the housing (12).
5. The turbocharger according to claim 2, wherein the sealing means (50, 52) are disposed radially between the inner and outer rings.
6. The turbocharger according to claim 5, wherein the sealing means (50, 52) only close the rolling space (40).
7. The turbocharger according to claim 6, wherein the rolling space (40) is filled with a lubricant distinct from the lubricant located in the damping space (38).
8. The turbocharger according to claim 1, further comprising passage means for the lubricant putting the damping space (38) and the rolling space (40) into communication.
9. The turbocharger according to claim 8, wherein the passage means comprise a gap (39) between the outer ring and the housing.
10. The turbocharger according to claim 8, wherein the passage means comprise holes made in the thickness of the outer ring.
11. The turbocharger according to claim 1, wherein the lubricant located inside the damping space (38) is grease.
12. The turbocharger according to claim 1, wherein the axial length of the rolling bearing (18) ranges between 30% and 95% of the axial dimension of the housing (12), and preferably ranges between 70% and 80%.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A carpentry guide tool for ensuring precise and accurate measurements comprising two polygonal prisms of differing sizes wherein the face of a first prism is in flush contact with a face of a second prism such that the two prisms in combination create at least one consistent reveal along an edge of the tool, the reveal defined by the size differential between the respective surface areas of the first prism face in flush contact with the second prism face.
2. The tool as in claim 1 wherein the two polygonal prisms of differing sizes are congruent.
3. The tool as in claim 2 wherein the two polygonal prisms of differing sizes are concentrically oriented with regard to one another.
4. The tool as in claim 2 wherein every edge of the first prism is parallel with the congruent edge of the second prism creating a consistent reveal along all edges of the tool defined by the size differential between the respective surface areas of the first prism base in flush contact with the second prism base.
5. The tool as in claim 3 wherein every edge of the first prism is parallel with the congruent edge of the second prism creating a consistent reveal along all edges of the tool defined by the size differential between the respective surface areas of the first prism base in flush contact with the second prism base.
6. The tool in claim 4 wherein the prisms are congruent rectangular prisms.
7. The tool in claim 6 wherein the prisms are congruent square prisms.
8. The tool in claim 5 wherein the prisms are congruent rectangular prisms.
9. The tool in claim 8 wherein the prisms are congruent square prisms.
10. The tool in claim 1 wherein the face of the larger prism not in contact with a face of the smaller prism features a recess in the surface of the face sufficient in size and shape to receive the protruding smaller prism of a second tool of the type now claimed.
11. The tool in claim 1 wherein the two prisms in flush contact are fixedly so.
12. The tool in claim 11 wherein the first prism and the second prism are composed of a singular rigid and contiguous material.
13. The tool as in claim 11 wherein the fixed flush contact is facilitated by fastening means.
14. The tool as in claim 13 wherein the fastening means is snap fastener.
15. The tool as in claim 14, wherein the first prism and second prism are interchangeable in relation to each other.
16. The tool as in claim 1, wherein the first prism and second prism are interchangeable in relation to each other.