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US 12,710,017 B1Granted
Cylinder liner installation in an opposed-piston engine
AssigneeGeneral Atomics Aeronautical Systems, Inc.
InventorJohn M. Kessler
Life of this patent
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Abstract
Combinations are provided for installing a cylinder liner in an opposed-piston engine. A main bearing device including a cylindrical bearing recess for a crankshaft main journal can be removed from a crankcase of the opposed-piston engine to enable insertion of a cylinder liner into a cylinder block of the engine. Once the cylinder liner is inserted, a clamping assembly acting between the cylinder liner and the main bearing device clamps the cylinder liner to the cylinder block.
Claims21
An opposed-piston engine, comprising:
- a cylinder block comprising a first crankcase configured to receive a first crankshaft, a second crankcase configured to receive a second crankshaft, and a bulkhead extending between the first crankcase and the second crankcase;
- the bulkhead comprising a first end portion situated at the first crankcase and configured to at least partially define a cylinder space in the cylinder block and a second end portion situated at the second crankcase and configured to support a journal of the second crankshaft;
- a cylinder liner received in the cylinder space;
- a main bearing device comprising a cylindrical bearing recess configured to support a journal of the first crankshaft and an attachment surface configured to be attached to the first end portion;
- and,
- a clamping assembly configured to act between the cylinder liner and the main bearing device so as to clamp the cylinder liner against the cylinder block.
3 more elements
A combination for an opposed-piston engine, comprising:
- a cylinder block comprising a first crankcase configured to receive a first crankshaft, a second crankcase configured to receive a second crankshaft, and a bulkhead extending between the first crankcase and the second crankcase;
- the bulkhead comprising a first end portion situated at the first crankcase and configured to receive a cylinder liner in cylinder space at least partially defined by the first end portion and a second end portion situated at the second crankcase and configured to receive a journal of the second crankshaft;
- a main bearing device comprising a cylindrical bearing recess configured to support a journal of the first crankshaft and an attachment surface configured to attach the main bearing device to the first end portion;
- and,
- a pair of through studs received in the bulkhead and configured to assemble the main bearing device to the first end portion and to assemble a main bearing cap to the second end portion.
2 more elements
Dependencies are inferred from the claim text.