1. Guideway girder, in particular for a magnetic levitation transport system (100), for forming a guideway with a number of girders (2) that are successively assembled in the direction of travel, with an upper girder section (12), in particular a top chord (12), possibly with a lower girder section (15), in particular a bottom chord (15) and at least one supporting section (13, 14), in particular a web (13, 14) below the upper girder section (12), characterized by at least one sound insulation element (7, 8) located in the area of the upper girder section (12) andor of the lower girder section (15) andor of the (at least one) supporting section (13, 14).
2. Guideway girder as in claim 1, characterized by a hollow cross-sectional configuration, whereby the cavity (16) is delimited toward the top by the upper girder section (12), laterally by a supporting section (13, 14) on either side and toward the bottom by a lower girder section (15).
3. Guideway girder as in claim 1 or 2, characterized by an installation on one or several pillars (5) imbedded in the ground.
4. Guideway girder as in one of the preceding claims, characterized in that the faces of the supporting sections (13, 14) of girders (2) following each other successively in the direction of the guideway and which are across from each other are essentially connected to each other.
5. Guideway girder as in one of the preceding claims, characterized in that sound insulation elements (7, 8) are installed on the inside andor outside of the supporting sections (13, 14), on the bottom andor top of the upper girder section (12) andor on the top of a lower girder section (15).
6. Guideway girder as in one of the preceding claims, characterized in that the (at least one) sound insulation element (7, 8) is essentially flat in shape and at least partially covers in the manner of a lining the (at least one) upper girder section (12) andor the lower girder section (15).
7. Guideway girderas in one of the preceding claims, characterized in that at least one sound insulation element (8) is provided with two flat segments (8a, 8b) that are at an angle to each other.
8. Guideway as in one of the preceding claims, characterized in that several sound insulation elements (7, 8) are installed one next to the other in the direction of travel.
9. Guideway girder as in one of the preceding claims, characterized by a design as a bivalent guideway, e.g. for magnetic levitation transport trains as well as for conventional trains.
10. Utilization of a tabular sound insulation element for installation on a guideway girder (2) installed or that can be installed essentially above ground, with an upper girder section (12), possibly a lower girder section (15) and with at least one supporting section (13, 14), in particular a guideway girder (2) as in one of the previous claims.
11. Utilization of a sound insulation element as in claim 10, characterized in that it is used to line free surfaces of the (at least one) supporting section (13, 14) of the upper girder section (12) andor of the lower supporting section (15).
12. Utilization of a sound insulation element as in claim 10 or 11, characterized in that in addition advertising elements are attached to the sound insulation elements (7, 8), in particular billboards andor illuminated publicity.
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 surface drive, comprising:
a shaft housing;
a propeller;
a propeller shaft that passes through the shaft housing with the propeller mounted at an end of the propeller shaft; and
mounted to the shaft housing is at least one of:
a container, wherein a self-locking or automatic locking pitch change mechanism that is configured to adjust a propeller blade of the propeller is partially located in the container, or
a propeller ventilation unit that is configured to direct exhaust gas to or away from the propeller based on a travel condition of the surface drive.
2. The surface drive according to claim 1, wherein the pitch change mechanism is mounted to the shaft housing.
3. The surface drive according to claim 2, wherein the pitch change mechanism comprises a thread gear or a worm gear.
4. The surface drive according to claim 2, wherein the pitch change mechanism comprises a locking device that prevents the pitch change mechanism from adjusting the propeller blade of the propeller.
5. The surface drive according to claim 2, wherein the pitch change mechanism is equipped with an adjustment unit and a sensor.
6. The surface drive according to claim 5, wherein the adjustment unit is a fluid or electric motor or a linear drive.
7. The surface drive according to claim 2, wherein the pitch change mechanism is located between a joint of a drive shaft and the propeller.
8. The surface drive according to claim 2, wherein the pitch change mechanism is equipped with an opening for the propeller shaft.
9. The surface drive according to claim 2, wherein the pitch change mechanism is configured to adjust a pitch of the propeller blade.
10. The surface drive according to claim 2, wherein the pitch change mechanism is configured to adjust a pitch of the propeller blade such that the surface drive can travel in a forward direction and a reverse direction and rest remain in a neutral position.
11. The surface drive according to claim 2, wherein the pitch change mechanism is a self-locking pitch change mechanism with a self-locking adjustment thread that locks a desired pitch of the propeller blade.
12. The surface drive according to claim 1, wherein the propeller ventilation unit is mounted to the shaft housing, and the propeller ventilation unit includes:
a duct housing;
a reversing flap located within the duct housing; and
a side duct connected to the duct housing,
wherein the propeller ventilation unit is configured to have the reversing flap direct the exhaust gas to the side duct and away from the propeller when the surface drive travels in reverse.