Engine
AssigneeYanmar Holdings Co., Ltd.
InventorsYu Hirao, Shinya Matsuo
Life of this patent
Estimating the term…
Abstract
An engine includes: an engine block including a cylinder block and a head block, a cool liquid cooler that cools a first cool liquid that cools the engine block, a lubricant oil cooler that cools a lubricant oil using the first cool liquid or a second cool liquid, an exhaust manifold mounted to the engine block, a turbocharger driven by exhaust gas from the exhaust manifold, an exhaust communication pipe that communicates the exhaust manifold with the turbocharger, and a cool liquid flow channel through which a cool liquid discharged from the engine block flows in an order of the exhaust communication pipe and the exhaust manifold. The cool liquid cooler and the lubricant oil cooler are so placed as to be arranged side by side on one end side in a crankshaft direction.
Claims14
An engine comprising:
- a cool liquid cooler configured to cool a first cool liquid, the first cool liquid configured to cool an engine block including a cylinder block and a head block;
- a lubricant oil cooler configured to cool a lubricant oil using the first cool liquid or a second cool liquid,
- two cylinder rows;
- and
- a gear case placed between the engine block and the cool liquid cooler and/or the lubricant oil cooler, wherein the gear case has a bulkhead;
- wherein the cool liquid cooler and the lubricant oil cooler are so placed as to be arranged side by side on one end side in a crankshaft direction;
- wherein the cool liquid cooler and/or the lubricant oil cooler is mounted to the gear case,
- wherein the gear case has an intra-case cool liquid flow channel through which the first cool liquid is configured to pass,
- wherein the intra-case cool liquid flow channel includes a first flow channel placed upstream of the cool liquid cooler and a second flow channel placed downstream of the cool liquid cooler,
- wherein the bulkhead partitions the first cool liquid flow channel from the second cool liquid flow channel,
- wherein the first cool liquid flow channel provides cooling for one of the two cylinder rows, and the second cool liquid flow channel provides cooling for another of the two cylinder rows.
Dependencies are inferred from the claim text.