Patent ID: 8864478
Filing Date: 2014-10-21
Classification: F04B,Y10T

Abstract:
1. A preload system comprising: a body including a body first portion and a body second portion; a first bore formed in the body first portion and configured to be exposed to high tensile stresses; a second bore formed in the body second portion and including a first engagement structure and a bottom positioned near the body first portion proximate a portion of the first bore that is exposed to the high tensile stresses, wherein the body further includes a surface entirely covering the bottom of the second bore; and a plug including a second engagement structure and a first end, the second engagement structure engaging the first engagement structure to force the first end of the plug against the surface of the body; wherein the force of the plug against the surface of the body applies a compressive preload to the portion of the first bore that is exposed to the high tensile stresses.