Patent ID: 9163761
Filing Date: 2015-10-20
Classification: F01P,F16L,F28F,Y10T

Abstract:
1. An automotive engine cooling pipe apparatus for fluid-conducting installation within an engine block of an engine, comprising: a front tube having a proximal portion; a rear tube configured to be telescopically engaged with the front tube and having a distal portion configured for at least partially slidably seating within a rear opening of the engine block, the rear tube formed having a stepped-down distal portion defining a distally-facing rear shoulder; a front sealing ring configured for seating within a front opening of the engine block, the front sealing ring having a proximally-facing substantially flat side and a central bore therethrough; and a crush ring configured to be slidably installed on the distal portion of the rear tube, the crush ring having a central axis, a proximal crush ring surface that is substantially perpendicular to the axis and configured to selectively substantially abut the distally-facing rear shoulder of the rear tube, and an substantially planar angularly fixed distal crush ring surface opposite the proximal crush ring surface, the distal crush ring surface being at an obtuse angle as measured from the axis of the crush ring in a direction from the proximal crush ring surface to the distal crush ring surface at a thickest profile side of the crush ring having a visual marking thereon, whereby the marking defines the point on the perimeter of the crush ring where the obtuse angle terminates.