# US 10,500,945 B2 · Exhaust gas cleaning apparatus

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- Number: US 10,500,945 B2
- Document ID: US10500945B2
- Status: Granted
- Kind: B2
- Application number: 15/866,817
- Filed: 2018-01-10
- Published: 2018-07-12
- Granted: 2019-12-10
- Earliest claimed: 2017-01-11
- Assignees: Kabushiki Kaisha Toyota Jidoshokki
- Applicants: Kabushiki Kaisha Toyota Jidoshokki
- Inventors: Yuto Motoyama
- Web page: https://patentgrep.com/patent/US10500945B2

## CPC

- B60K 13/04: concerning exhaust
- B01D 53/94: by catalytic processes
- F01N 3/021: by means of filters
- F01N 3/0233: {periodically cleaning filter by blowing a gas through the filter in a direction opposite to exhaust flow, e.g. exposing filter to engine air intake}
- F01N 3/035: with catalytic reactors
- F01N 13/14: having thermal insulation {(exhaust manifolds F01N13/102)}
- F01N 13/141: {Double-walled exhaust pipes or housings}
- F01N 2260/00: Exhaust treating devices having provisions not otherwise provided for
- F01N 2450/30: Removable or rechangeable blocks or cartridges, e.g. for filters
- F01N 2590/08: for heavy duty applications, e.g. trucks, buses, tractors, locomotives
- Y02T 10/12: Improving ICE efficiencies
- 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
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- 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)
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

There is provided an exhaust gas cleaning apparatus for cleaning exhaust gas discharged from an internal combustion engine that includes an upstream side exhaust pipe and a downstream side exhaust pipe that are located on an upstream side and a downstream side, respectively, with respect to a flow direction of the exhaust gas discharged from the internal combustion engine. A filter unit is disposed between the upstream side exhaust pipe and the downstream side exhaust pipe and removably connected at opposite sides thereof to the upstream side exhaust pipe and the downstream side exhaust pipe. The filter unit includes a filter that captures particulate matter contained in the exhaust gas flowing in the upstream side exhaust pipe, a casing in which the filter is accommodated, and a thermal insulator that covers an entire outer peripheral surface of the casing. A handle is provided on the thermal insulator.

## Claims

### Claim 1

An exhaust gas cleaning apparatus for cleaning exhaust gas that is discharged from an internal combustion engine, comprising:
an upstream side exhaust pipe and a downstream side exhaust pipe that are located on an upstream side and a downstream side, respectively, with respect to a flow direction, of the exhaust gas that is discharged from the internal combustion engine;
a filter unit that is disposed between the upstream side exhaust pipe and the downstream side exhaust pipe and that is removably connected to the upstream side exhaust pipe and the downstream side exhaust pipe, wherein
the filter unit comprises:
a filter configured to capture particulate matter contained in the exhaust gas;
a casing in which the filter is accommodated; and
a thermal insulator that covers an entire outer peripheral surface of the casing, and wherein
the thermal insulator includes a handle.

### Claim 2 (depends on 1)

The exhaust gas cleaning apparatus according to claim 1, wherein
the thermal insulator includes thermal insulation material that covers the outer peripheral surface of the casing, and
a holder that covers the thermal insulation material to secure the thermal insulation material on the casing, wherein
the handle is formed integrally with the holder.

### Claim 3 (depends on 2)

The exhaust gas cleaning apparatus according to claim 2, wherein the holder includes a first half part and a second half part that extend circumferentially along the outer peripheral surface of the thermal insulation material, each of the first half part and the second half part including a flange that extends radially outward from the thermal insulation material, and includes an opening therein, so as to form the handle.