# US 9,752,478 B2 · Engine device of working vehicle

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- Number: US 9,752,478 B2
- Document ID: US9752478B2
- Status: Granted
- Kind: B2
- Application number: 14/771,943
- Filed: 2014-03-13
- Published: 2016-01-21
- Granted: 2017-09-05
- Earliest claimed: 2013-03-15
- Assignees: Yanmar Co., Ltd.
- Applicants: Yanmar Co., Ltd.
- Inventors: Yoshiyuki Sandou; Tomoyuki Kimura
- Web page: https://patentgrep.com/patent/US9752478B2

## CPC

- F01N 3/035: with catalytic reactors
- A01D 41/12: Details of combines
- B60K 13/04: concerning exhaust
- F01N 3/021: by means of filters
- F01N 3/0211: {Arrangements for mounting filtering elements in housing, e.g. with means for compensating thermal expansion or vibration}
- F01N 3/10: by thermal or catalytic conversion of noxious components of exhaust
- F01N 3/106: {Auxiliary oxidation catalysts}
- F01N 3/2066: {Selective catalytic reduction [SCR]}
- F01N 3/2839: {Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration}
- F01N 13/009: {having two or more separate purifying devices arranged in series}
- B60Y 2200/222: Harvesters
- F01N 2260/20: for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust device
- F01N 2340/04: Arrangement of the exhaust system relative to a vehicle or parts thereof
- F01N 2590/08: for heavy duty applications, e.g. trucks, buses, tractors, locomotives
- Y02A 50/20: Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02T 10/12: Improving ICE efficiencies
- F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16)
- A01D: HARVESTING; MOWING
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

An engine device of a working vehicle is structured such that a first case and a second case can be firmly fixed with a high rigidity by making good use of a frame of an engine room. In the engine device of the working vehicle having the first case which removes particulate matter in exhaust gas of the engine and the second case which removes nitrogen oxide in the exhaust gas of the engine, the first case is provided in the engine room which is inward provided with the engine, via a first case support body, and the second case is provided in the engine room via second case support bodies.

## Claims

### Claim 1

An engine device of a combine harvester, wherein an engine is provided internally in a lower section of an inner portion of an engine room that is comprised of engine room frames erected behind a harvest storage tank on a travel machine, the engine device comprising
a first case which removes particulate matter in the exhaust gas of the engine, and a second case which removes nitrogen oxide in the exhaust gas of the engine,
wherein the first case is mounted on and affixed via a first case support body in a transverse orientation on a mounting table frame affixed on one of said engine room frames on one side of an upper portion of the engine room adjacent to a threshing device, and positioned apart from and above the engine,
wherein the second case is affixed vertically via a second case support body to one of said engine room frames provided on a rear side of the engine room adjacent to the work device, and positioned lower than the first case,
and wherein the second case is connected to the first case via a urea mixing pipe, a tail pipe is connected to the second case, the urea mixing pipe is positioned inside the engine room behind the first case and above the second case, and the urea mixing pipe has at least one bend thereby to change direction of gas exhaust gas flow therethrough.

### Claim 2 (depends on 1)

The engine device of a combine harvester according to claim 1,
wherein the mounting table frame is comprised of a front upper surface frame protruding horizontally from the engine room frame at a front side of the engine room toward a side surface of the work device, and an exhaust gas purification frame having front and rear ends each affixed respectively to a front upper surface frame and one of said engine room frames at the rear side of the engine room, and an upper surface of the engine room is formed by the front upper surface frame and the exhaust gas purification frame at a position lower than a topmost surface of the engine room frame, and
wherein a vertical edge of the first case support body is affixed to the engine room frame, and another vertical edge of the first case support body is affixed to an outer periphery of the second case.