Abstract: An assembly for fitting together multiple exhaust pipes in a multi-cylinder engine into a single unit is provided. The assembly includes a cap and a choke pipe connected to the cap. The cap includes a surface with multiple sockets protruding from the surface in a direction opposite to the choke pipe whereby the sockets engage the exhaust pipes. The cap also includes a skirt, which surrounds a perimeter of the surface. The skirt extends from the surface in a direction toward the choke pipe. An internal surface of the sockets, an internal surface of the skirt and an internal surface of the choke pipe are linearly arranged with respect to each other.

Abstract: An assembly in which a plurality of exhaust pipes in a multi-cylinder engine is fitted together in a single unit and in which exhaust gases do not create eddy currents or turbulence in the areas where the pipes are fitted together. The configuration is designed such that, to prevent pockets from forming between a skirt and a plurality of sockets formed in a perforated cap, parts of each of the sockets and part of the skirt are arranged linearly relative to each other so as not to form an eddy current.

Abstract: A blade assembly for a hydraulic power transmitting apparatus is made up of a plurality of blades disposed at an equal distance from one another; a joint piece provided at a radially outer end of each of the blades; and a tie member for tying the blades together at the joint pieces. The blades, the joint pieces and the tie member are integrally formed as a continuous semi-manufactured product of a belt-shaped metal plate. Each of the blades is raised or erected from a plane including the tie member. The joint piece is bent to change a direction of the tie member. The tie member containing therein a required number of blades is fixedly joined together at both ends into a ring shape.

Abstract: An impeller for a hydraulic power transmitting apparatus has a shell and a plurality of blades fixed to the shell. Each of the blades has a blade main body and a fixing flange which is bent at an angle relative to the blade main body. The shell and the fixing flange are placed one on top of the other and are pressed together at a fixing point such that a hollow cylindrical projection having a bottom is formed. The projection is made up of a diametrically expanded portion along a bottom outer periphery of that member out of the shell and the fixing flange which lies on an inner side in the projection. The expanded portion is thrusted into that member out of the shell and the fixing flange which lies on an outer side in the projection.

Abstract: The rotation of a first flywheel of a two-mass type of flywheel device is transmitted to a second flywheel via springs. Frictional connecting portion having a friction plate is provided between the first flywheel and the springs. A driven plate integral with the second flywheel is provided between the springs and the second flywheel. The friction plate is fitted at one end thereof to a cylindrical portion formed on a diametrically inner side of the first flywheel and is frictionally engaged with the first flywheel. The friction plate is engaged at the other end thereof with the springs. A spring holding plate is disposed to define an oil chamber together with the first flywheel for containing therein the springs, the frictional connecting portion, and the driven plate. The first flywheel and the spring holding plate are formed by pressing metallic plate members and the first flywheel and the spring holding plate are welded together at their peripheries for hermetically sealing the oil chamber.