# US 9,435,294 B2 · Engine apparatus

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- Number: US 9,435,294 B2
- Document ID: US9435294B2
- Status: Granted
- Kind: B2
- Application number: 14/431,109
- Filed: 2013-09-26
- Published: 2015-08-27
- Granted: 2016-09-06
- Earliest claimed: 2012-09-28
- Assignees: Yanmar Co., Ltd.
- Applicants: Yanmar Co., Ltd.
- Inventors: Shinya Fukuyoshi
- Web page: https://patentgrep.com/patent/US9435294B2

## CPC

- F02M 26/29: Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
- F01N 3/021: by means of filters
- F01N 3/18: characterised by methods of operation; Control
- F01N 13/008: {Mounting or arrangement of exhaust sensors in or on exhaust apparatus (sensor arrangements for engine control F02D41/1439)}
- F01N 13/14: having thermal insulation {(exhaust manifolds F01N13/102)}
- 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 13/1838: {characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles}
- F02B 67/00: Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F01N 3/0231: {using special exhaust apparatus upstream of the filter for producing nitrogen dioxide, e.g. for continuous filter regeneration systems [CRT]}
- F01N 13/1855: {the connection being realised by using bolts, screws, rivets or the like}
- F01N 2250/02: filtering and catalytic conversion
- F01N 2450/24: by bolts, screws, rivets or the like
- F01N 2560/06: the means being a temperature sensor
- F01N 2560/08: the means being a pressure sensor
- F01N 2590/08: for heavy duty applications, e.g. trucks, buses, tractors, locomotives
- Y02T 10/12: Improving ICE efficiencies
- F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- 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)
- F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G)
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

An object in mounting an exhaust gas purifier to an engine as a component of the engine is to prevent a plurality of detection members, which are configured to detect a state of the exhaust gas purifier, from being disadvantageously affected by the heat of the engine and the exhaust gas purifier. An engine apparatus includes the exhaust gas purifier configured to purify exhaust gas from the engine. The exhaust gas purifier is mounted above the engine through a mounting base. A heat conductive bracket is disposed on an outer surface of the exhaust gas purifier that is closer to the engine. The plurality of detection members, which are configured to detect of the state of the exhaust gas purifier, are attached to an upper surface and a side surface of the heat conductive bracket.

## Claims

### Claim 1

An engine apparatus, comprising:
an exhaust gas purifier configured to purify exhaust gas from an engine and mounted above the engine through a mounting base, wherein
an L-shaped heat conductive bracket is disposed on an outer surface of the exhaust gas purifier that is closer to the engine,
a sensor fastening portion is integrally formed on a portion of a flange disposed on the exhaust gas purifier, the heat conductive bracket being detachably attached to the sensor fastening portion,
on a horizontal plate portion of an upper surface of the heat conductive bracket is affixed an exhaust pressure sensor for detecting pressure of the exhaust gas of the exhaust gas purifier,
on a vertical plate portion on a side surface of the heat conductive bracket is affixed an exhaust gas temperature sensor that detects temperature of the exhaust gas of the exhaust gas purifier, and
on the heat conductive bracket, each of the horizontal plate portion, the vertical plate portion, and the sensor fastening portion have fastening surfaces oriented in differing directions relative to each other.

### Claim 2 (depends on 1)

The engine apparatus according to claim 1, wherein the sensor fastening portion of the flange protrudes in a direction away from the outer surface of the exhaust gas purifier, the sensor fastening portion and the heat conductive bracket being fastened together by fastening bolts.

### Claim 3 (depends on 1)

The engine apparatus according to claim 1, wherein heat insulating and vibration isolating sheets are interposed between the detection members and the heat conductive bracket.

### Claim 4 (depends on 2)

The engine apparatus according to claim 2, wherein heat insulating and vibration isolating sheets are interposed between the detection members and the heat conductive bracket.