Industrial vehicle

Patent metadata

Field	Value
Publication number	US-9944168-B2
Application number	US-201414893259-A
Country	US
Kind code	B2
Filing date	Jun 11, 2014
Priority date	Jun 14, 2013
Publication date	Apr 17, 2018
Grant date	Apr 17, 2018

Abstract

Regarding an industrial vehicle 101 configured to include an engine 1 mounted on a front portion of a travelling machine body 102 and an exhaust gas purification device 2 for purifying exhaust gas of the engine 1 , the industrial vehicle 101 is such that the exhaust gas purification device 2 is mounted on an upper portion side of the engine 1 , and the engine 1 and the exhaust gas purification device 2 are covered with a hood 114 , and a maneuvering seat 117 is arranged on a rear side of the hood 114 , and it is an object to suppress heat damage on the exhaust gas purification device 2 itself and the hood 114 . Opening holes 160 are formed on right and left bilateral sides of the hood 114 , and an introduction fin 166 that tilts in a posture for taking in outside air from an advancing direction is arranged in each opening hole 160.

First claim

The invention claimed is:

1. A tractor comprising:
a diesel engine mounted on a front portion of a traveling machine body, a cooling fan arranged at a front of the engine for cooling the engine, and a diesel particulate filter for purifying exhaust gas of the engine, wherein the diesel particulate filter is mounted on an upper portion of the engine, and the engine and the diesel particulate filter are covered with a hood, and an operation seat is arranged on a rear side of the hood, wherein
an exhaust gas movement direction of the diesel particulate filter and an output shaft direction of the engine are parallel,
the diesel particulate filter is connected to a cylinder head of the engine via a plurality of supports above the engine and the diesel particulate filter is thereby supported closer one side of the engine than the other and with a major portion thereof elevated above the engine and a side face of the diesel particulate filter is proximate a side of the hood along the entire length of the diesel particulate filter, and
opening holes are formed through said side of the hood along a longitudinal direction of the diesel particulate filter with said side face of the diesel particulate filter facing or next to the opening holes, the opening holes being at a higher elevation than the cooling fan, and in the opening holes fins are arranged, front to back at intervals in a posture inclined toward a direction of forward travel of the tractor as they go from the inside to the outside of the hood.

2. A tractor comprising:
an engine mounted on a front portion of a traveling machine body and an exhaust gas purification device for purifying exhaust gas of the engine, wherein the exhaust gas purification device is mounted on an upper portion of the engine, and the engine and the exhaust gas purification device are covered with a hood, and an operation seat is arranged on a rear side of the hood, wherein
an exhaust gas movement direction of the exhaust gas purification device and an output shaft direction of the engine are parallel,
the exhaust gas purification device is connected to a cylinder head of the engine via a plurality of housing supports above the engine, and
opening holes are formed on surfaces of the hood along a longitudinal direction of the exhaust gas purification device, and a side face of the exhaust gas purification device is arranged to face or to be next to the opening holes, in the opening holes fins are arranged, front to back at intervals in a posture inclined toward a direction of forward travel of the tractor as they go from the inside to the outside of the hood and the right-to-left width of the exhaust gas purification device is smaller than the distance from the center of the right-to-left width of the engine to the outermost of the right-to-left width.

3. The tractor according to claim 2 ,
wherein each opening hole is formed on a beveling portion that tilts obliquely downward while advancing from an inner side to an outer side, out of said surfaces of the hood, and
wherein the exhaust gas purification device does not protrude from any of the opening holes.

4. The tractor according to claim 3 , wherein the exhaust gas purification device comprises a diesel particulate filter, and an exhaust manifold and the diesel particulate filter are arranged closer to a same side of the engine than the other side of the engine.

5. The tractor according to claim 2 , wherein the front-to-rear width of the exhaust gas purification device is contained within the front-to-rear width of the engine in plan view.

Assignees

• Yanmar Co Ltd

Inventors

• Kurokawa Yoshiaki

Classifications

• F01N2590/08

  for heavy duty applications, e.g. trucks, buses, tractors, locomotives · CPC title

• B60K13/04 Primary

  concerning exhaust · CPC title

• F01N3/106

  Auxiliary oxidation catalysts · CPC title

• F01N13/1805

  Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body (pipe joints in general F16L; fixing auxiliaries in motor vehicles in general B60K) · CPC title

• F01N2340/04

  Arrangement of the exhaust system relative to a vehicle or parts thereof · CPC title