Tractor
AssigneeYanmar Co., Ltd.
InventorKazuo NOMURA
Life of this patent
Estimating the term…
Abstract
A tractor including: an engine mounted on a traveling body; a post-processing device configured to purify exhaust gas of the engine; and a tail pipe long in an up-down direction and configured to emit exhaust gas having passed through the post-processing device to the outside. The post-processing device is arranged in a standing posture in front of an operation unit on the traveling body so that the exhaust gas flows from the bottom to the top. An upwardly protruding outlet pipe is provided on an upper surface side of the post-processing device. The inner diameter of an exhaust gas inlet side of the tail pipe is set larger than the outer diameter of the outlet pipe which is inserted and communicated with the exhaust gas inlet side of the tail pipe.
Claims6
A tractor comprising:
- an engine mounted on a traveling body;
- a post-processing device configured to purify exhaust gas of the engine;
- and
- a tail pipe elongated in an up-down direction of the tractor and configured to emit exhaust gas having passed through the post-processing device to outside,
- the post-processing device being arranged in a standing posture in front of an operation unit on the traveling body, in such a manner that the exhaust gas flows from bottom to top of the post-processing device, and
- an exterior side of the post-processing device being covered with an exterior cover member,
- wherein:
- an exhaust sensor configured to detect an internal state of the post-processing device is attached to the post-processing device in such a manner that a proximal portion of the exhaust sensor is exposed on the exterior side of the post-processing device;
- the exterior cover member covers the exterior side of the post-processing device, including the proximal portion of the exhaust sensor;
- and
- the exterior cover member has a cylindrical portion on the outer circumference side of the post-processing device and an expanded portion elongated in the up-down direction, the expanded portion covering at least the exhaust sensor.
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Dependencies are inferred from the claim text.