| 摘要 |
FIELD: mechanics, transport. ^ SUBSTANCE: proposed cylinder comprises a neck arranged on the toroidal welded casing inner surface formed by the ring with extensions on its ends for connection with identical parts of upper and lower bottoms. The said bottoms form the toroid outer surface which, in cross section in meridional plane approximates to the shape of ellipse described by the equation R-2=a-2cos2ϕ+b-2sin2ϕ, where R, ϕ are polar coordinates of the toroid outer surface edges, in cross section in meridional plane, IϕI<=pi-arctg2h/(D-d+2t-2a) means for edges located RH from the axis of rotation, IϕI<=2pi-arctg2h/(D-d+2t-2a) means for edges located LH from the axis of rotation, a=(D-d+t)/[2(1+(1-h2b-2)1/2], b is the height of every aforesaid bottom, 2h is the distance between the points of joint of the ring with the upper and lower bottoms, D is toroid OD, d is the ring cylindrical part diameter, t is the ring wall thickness. ^ EFFECT: resistance against excess inner pressure of gaseous fuel, uniform shape casing bottoms. ^ 3 cl, 2 dwg |
