A joining structure of piping to a flange (4) is disclosed, in which structure no branch pipe, hose and the like to carry cooling water are needed, and thereby the joining work is easy, the strength is secured, and the cost can be decreased. In a joining s...

A fuel supply apparatus for an engine according to the present invention comprises: a plurality of injectors 13 for injecting a fuel to an intake manifold of an engine; a delivery rail 20, to which the plurality of injectors 13 are attached, for distributi...