Patent EA-003490-B1 (EA)
Title: High-speed transportation module
Inventor: JUNITSKIY ANATOLIY EHDUARDOVIC
IPC: B62D35/00
Filed: 2002-07-30
Abstract: 1. A high-speed module of a transportation system, comprising a streamlined body with smoothly conjugated therebetween sphere-like front portion, drop-like middle portion having a flattened bottom surface and conical rear portion as well as two rows of drive-connected wheels, characterized in that the rear conical portion in the longitudinal direction is designed of alternating curvature, two longitudinal sections with a negative curvature in cross section are provided in the bottom surface of the body middle portion wherein the points of coupling said sections with the body bottom surface are spaced from the vertical plane of the body symmetry at a distance satisfying the ratio: wherein a is the distance from the conjugated points each of longitudinal sections of negative curvature with the body bottom surface to the vertical plane of the body symmetry, m; H is the maximum body height in cross section, m, and conjugated points of said sections with the body side surfaces are spaced from the body bottom surface at a distance satisfying the provision that: wherein b is the distance from the conjugated points with the body side surfaces each of the longitudinal sections of negative curvature to the body bottom surface, m. 2. The module according to claim 1, characterized in that the extremity of the body rear portion is wedge-shaped, the rib of which forms the body rear edge arranged in the horizontal plane. 3. The module according to any of claims 1 or 2, characterized in that the length of the middle portion of the body and the distance between wheels row satisfy the ratio: wherein: L1 is the length of the middle portion of the body between the conjugated surface points of the front and the rear portions with the flattened bottom surface of the middle portion of the body, m; L2 is he distance between the wheels row, m. 4. The module according to any of claims 1 to 3, characterized in that the lengths of the front, middle and rear portions satisfy the ratios: wherein: L3 is the length of the front portion of the body from the extreme front point to the conjugated surface line of the front portion with the flattened bottom surface of the middle portion, m; L4 is the length of the rear portion of the body from the extreme rear point to the conjugated surface line of the front portion with the flattened bottom surface of the middle portion, m; 5. The module according to any one of claims 1 to 4, characterized in that the conjugated surface points of the rear portion of the body having different signs of curvature are spaced from the conjugated surface points of the middle and the rear portions of the body at a distance satisfying the ratio: wherein: L5 is a distance from the conjugated surface points of the conical surfaces of the rear portion of the body having different signs of curvature to the conjugated surface points of the middle and the rear portions of the body, m. 6. The module according to any one of claims 1 to 5, characterized in that the area of the maximum cross section of the middle portion of the body and the area of the maximum cross section of the rear portion of the body satisfy the ratio: wherein: Srear is the area of the maximum cross section of the rear portion of the body, m<2>; Smiddle max is the area of the maximum cross section of the middle portion of the body, m<2>. 7. The module according to any one of claims 1 to 6, characterized in that the drop-like upper and the flattened bottom surfaces of the middle portion of the body are conjugated according to the provision: wherein: H1 is the maximum height of the upper part of the body passing through the points of the body with vertical position of the tangent, m; H2 is a corresponding height of the lower part of the body passing through the points of the body with vertical position of the tangent, m.