Patent ID: 7364208
Filing Date: 2008-04-29
Classification: F16L,F28F,Y10T

Abstract:
1. A connecting structure of a pipe connected to a passage formed in a member, comprising: a projection portion that projects from the pipe radially outwardly; a recess portion that is provided at an open end of the passage formed in the member and that receives the projection portion of the pipe, wherein the recess portion is defined by a peripheral wall portion that includes a thin-shaped deformed portion that is defined by a groove formed in an outer end face of the peripheral wall portion, wherein the deformed portion is inclined and curved inwardly toward the recess portion such that an inner surface of the deformed portion is formed in a concave shape and an outer surface of the deformed portion is formed in a convex shape, wherein the deformed portion is positioned axially within an outer end surface of the peripheral wall portion and is engaged with the projection portion, and wherein the projection portion of the pipe, which is inserted into the opening end of the passage in the member, abuts the inner surface of the deformed portion.