Bearings – Rotary bearing – Fluid bearing
Patent
1985-06-11
1987-01-06
Levy, Stuart S.
Bearings
Rotary bearing
Fluid bearing
384119, 384147, F16C 3206, F16C 3372
Patent
active
046342974
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a method for the sealing of a bearing space formed in hydrostatic and aerostatical bearings and adapted to receive a fluid, and a means to carry out said method.
It is a principal object of the invention to provide a method and a means of the kind mentioned above, which makes it possible to produce a resulting force operating on the bearing in a determined direction. By such a method the need to use expensive roller bearings, for example in axial reciprocating engines, is reduced. It is also desirable to make it possible to combine bearings of different types with hydrostatic or aerostatical bearings, which results in bearing units of small size with a carefully defined position for the detail mounted in the bearing at the same time as a long service life is obtained in connection with high rotation speed and working thrust. It is also desired to keep the flow of oil or any other fluid on a low level.
Said object is obtained by means of a method according to the present invention, which is substantially characterized by a seal of ring shape being supported by a first bearing body in such a manner that with its sealing contact surface it bears in a linear manner against a second bearing body forming part of the bearing, a plane extending around the whole periphery of the ring through its sealing contact surface occupying an angular position relative to the symmetry axis of the bearing body that the ring surrounds or bears against and/or said plane crossing the perpendicular of a preferably concentric bearing surface arranged at the other body.
A means made according to the invention is further characterized by a seal of ring shape being received in and supported by a first bearing body forming part of the bearing, the sealing contact surface of the seal being linearly fitted to a bearing surface, which is provided on a second bearing body forming part of the bearing, so that a plane extending through the sealing contact surface of the ring along the entire periphery of the same occupies an angular position relative to the symmetry axis of the bearing body, which the ring surrounds or to which it can be fitted and/or an arrangement, in which said plane is disposed to cross the perpendicular of a preferably concentric bearing surface provided at the second body.
The invention is described in the following, reference being made to the accompanying drawings, in which
FIG. 1 shows a hydrostatic axial bearing,
FIG. 2 shows a hydrostatic shaft bearing in combination with an axial bearing as applied in an hydraulic machine with spherical pistons,
FIG. 3 shows a hydrostatic radial bearing with a possibility to change the force operating on the bearing,
FIG. 4 shows a self-aligning bearing construction for a hydrostatic bearing,
FIG. 5 is a schematical cross-sectional view of a hydrostatic bearing, the sealing ring of which bears against a plane bearing surface,
FIG. 6 shows a bearing similar to the one shown in FIG. 5, but with the sealing ring bearing against a concave bearing surface,
FIG. 7 likewise shows a bearing similar to the one shown in FIG. 5, but with the sealing ring bearing against a convex bearing surface, the sealing ring being shown as seen in the direction of the force,
FIG. 8 shows the invention applied to a piston made of a hollow work piece,
FIG. 9 shows the invention applied to a rotating piston,
FIGS. 10, 11, 12 show the linear sealing contact bearing of the sealing ring against a movable bearing body with a plane bearing surface, a concave spherical bearing surface, and a convex spherical bearing surface respectively,
FIG. 13 shows the invention applied to a rotating vertically directed shaft provided with a flange and with the sealing ring concentrically supported on the shaft,
FIG. 14 shows the same bearing arrangement as the one shown in FIG. 13, but with the sealing ring supported in an eccentric manner on the shaft,
FIG. 15 shows the distribution of pressure in a hydrostatic bearing, the sealing ring of which bears against a plane bearing surface,
FIG. 16
REFERENCES:
patent: 3824662 (1974-07-01), Minegishi
patent: 4058321 (1977-11-01), Gavrun et al.
patent: 4076335 (1978-02-01), Ahmed et al.
patent: 4114959 (1978-09-01), Christ
patent: 4404724 (1983-09-01), Christ et al.
Hannon Thomas R.
Levy Stuart S.
LandOfFree
Means for sealing of a bearing space formed in hydrostatic and a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Means for sealing of a bearing space formed in hydrostatic and a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Means for sealing of a bearing space formed in hydrostatic and a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-681135