Engine block durability test
AssigneeScania CV AB (publ)
InventorsAnders Jonsson, Göran Granqvist, Björn Rabenius, Jan Linder, Sven-Eric Stenfors
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Abstract
The object of the invention is to provide an alternative method for durability testing of an engine block. The engine block comprises cylinder cavities, which cylinder cavities are separated from each other by intermediate walls, each intermediate wall comprising a bolt hole. The method comprises the step of: removing a test specimen from an area of the intermediate wall of the engine block, such that the test specimen comprises the bolt hole.
Claims25
A method for preparing a test specimen for a durability test of an engine block, wherein the engine block comprises cylinder cavities and the cylinder cavities are separated from each other by intermediate walls, each intermediate wall comprising a bolt hole positioned inside the intermediate wall, the method comprising:
- removing the test specimen from the engine block such that the test specimen comprises at least a portion of the intermediate wall of the engine block and includes the bolt hole.
A method for preparing a test specimen for a durability test of an engine block, wherein the engine block comprises cylinder cavities separated from each other by intermediate walls, each intermediate wall comprising a bolt hole positioned inside the intermediate wall, the method comprising:
- removing the test specimen from the engine block such that the test specimen comprises at least a portion of the intermediate wall of the engine block and the bolt hole, the test specimen comprising a first end and a second end positioned remote in an axial direction from the first end, and the removing is performed such that the bolt hole has an opening in the first end of the test specimen and extends in the axial direction inside the test specimen;
- shaping the second end of the test specimen into a shape configured to engage an axial hydraulic fatigue test rig, and
- cutting a middle part of the test specimen between the first end and the second end to a circular cross section such that the bolt hole is coaxial with the cut cylindrical part of the test specimen.
Dependencies are inferred from the claim text.