# US 2016/0258337 A1 · Engine device for work vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0258337 A1 - Document ID: US20160258337A1 - Status: Published application - Kind: A1 - Application number: 15/030,680 - Filed: 2014-10-22 - Published: 2016-09-08 - Earliest claimed: 2013-10-25 - Assignees: Yanmar Co., Ltd. - Applicants: Yanmar Co.Ltd. - Inventors: Yoshiyuki SANDOU - Web page: https://patentgrep.com/patent/US20160258337A1 ## CPC - F01N 13/1805: {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)} - F01N 3/021: by means of filters - F01N 3/2066: {Selective catalytic reduction [SCR]} - F01N 13/009: {having two or more separate purifying devices arranged in series} - F01N 13/18: Construction facilitating manufacture, assembly, or disassembly - F01N 13/1844: {Mechanical joints} - F01N 3/035: with catalytic reactors - F01N 3/106: {Auxiliary oxidation catalysts} - F01N 2240/20: a flow director or deflector - F01N 2340/02: Distance of the exhaust apparatus to the engine or between two exhaust apparatuses - F01N 2340/04: Arrangement of the exhaust system relative to a vehicle or parts thereof - F01N 2450/30: Removable or rechangeable blocks or cartridges, e.g. for filters - F01N 2470/18: the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus - F01N 2590/08: for heavy duty applications, e.g. trucks, buses, tractors, locomotives - F01N 2610/02: the substance being ammonia or urea - F01N 2610/1406: Storage means for substances, e.g. tanks or reservoirs - F01N 2610/1453: Sprayers or atomisers; Arrangement thereof in the exhaust apparatus - 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) - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A engine device for a work vehicle, in which an engine, a first case, and a second case can be constituted in the same vibration structure, and exhaust gas path structure between the engine and the second case can be constituted in such a manner as to reduce costs. The engine device for a work vehicle according to the present invention of the instant application includes the first case for removing particulate matter in exhaust gas of the engine and the second case for removing nitrogen oxides in the exhaust gas of the engine, and configured to connect the first case to the second case via a urea mixing pipe. The engine, the first case, and the second case are integrally adhered, and the engine, the first case, and the second case are configured to be integrally vibrated in a swingable manner. ## Claims ### Claim 1 An engine device for a work vehicle, the engine device configured to include a first case for removing particulate matter in exhaust gas of an engine and a second case for removing nitrogen oxides in the exhaust gas of the engine, and configured to connect the first case to the second case via a urea mixing pipe, comprising: wherein the engine, the first case, and the second case are integrally adhered, and the engine, the first case, and the second case are configured to be integrally vibrated in a swingable manner. ### Claim 2 (depends on 1) The engine device for the work vehicle according to claim 1, wherein a plurality of supporting leg bodies are vertically installed in a cylinder head of the engine, and a supporting stand is coupled on an upper end side of the plurality of supporting leg bodies, and the first case and the second case are adhered on an upper surface side of the engine via the approximately horizontal supporting stand. ### Claim 3 (depends on 1) The engine device for the work vehicle according to claim 1, wherein an inlet pipe of the first case is arranged on a side where an exhaust manifold of the engine is installed, and wherein the first case is mounted in such a manner that the exhaust gas in the first case can transfer in a direction intersecting with a core line of an output shaft of the engine, and wherein the second case is juxtaposed on a lateral part on an installation side of a cooling fan of the engine, on a lateral part of the first case. ### Claim 4 (depends on 1) The engine device for the work vehicle according to claim 1, wherein the work vehicle is such that an operating cabin is arranged in rear of a hood in which the engine is internally installed, and wherein a urea water tank for exhaust gas purification is installed between a front portion of the operating cabin and a rear portion of the engine. ### Claim 5 (depends on 1) The engine device for the work vehicle according to claim 1, wherein the first case is formed in such a manner as to be divided into an exhaust intake side case and an exhaust discharge side case, and the exhaust discharge side case is configured to be separable in a state where the exhaust intake side case is supported on the side of the engine. ### Claim 6 (depends on 5) The engine device for the work vehicle according to claim 5, further comprising an exhaust outlet pipe configured to couple the first case with the urea mixing pipe, and wherein the exhaust outlet pipe is extended on an outer side in a direction intersecting with a transfer direction of the exhaust gas, on an outer side of the exhaust discharge side case, and a coupling portion between the urea mixing pipe and the exhaust outlet pipe is disposed at a position deviated from separation locus of the exhaust discharge side case separated in the transfer direction of the exhaust gas. ### Claim 7 (depends on 5) The engine device for the work vehicle according to claim 5, further comprising a clamping body for adhering the exhaust intake side case and the second case; and a clamping body for adhering the exhaust discharge side case and the second case, and wherein it is configured that the first case and the second case are integrally adhered with each clamping body, thereby forming an exhaust purification unit. ### Claim 8 (depends on 5) The engine device for the work vehicle according to claim 5, further comprising a clamping body for integrally adhering the first case and the second case; and a supporting stand for mounting the clamping body, and wherein it is configured that a plurality of supporting leg bodies are vertically installed on an upper surface side of the engine, and the supporting stand is coupled with an exhaust manifold of the engine and the plurality of supporting leg bodies.