Claims
- 1. An apparatus for purifying an exhaust gas of an internal combustion engine mounted in a vehicle, said apparatus comprising:
- an exhaust pipe communicated with an internal combustion engine,
- a catalyst disposed in said exhaust pipe,
- a heater for heating air which is introduced into said exhaust pipe,
- an air introducing pipe disposed between an air intake pipe of the internal combustion engine and said exhaust pipe for introducing said heated air at a point upstream of said catalyst in said exhaust pipe, said air introducing pipe having one end communicated to the air intake pipe and an other end communicated to said exhaust pipe of the internal combustion engine at a location upstream of said catalyst, said heater being installed in said air introducing pipe, and
- a windbreak cover provided on a periphery of both said heater and said air introducing pipe, through which said heated air is permitted to flow, in such a way that said windbreak cover surrounds both said heater and said air introducing pipe.
- 2. The apparatus of claim 1, wherein said windbreak cover includes openings for draining water accumulating therein.
- 3. An apparatus for purifying an exhaust gas of an internal combustion engine mounted in a vehicle, said apparatus comprising:
- an exhaust pipe communicated with an internal combustion engine,
- a catalyst disposed in said exhaust pipe,
- a heater for heating air which is introduced into said exhaust pipe,
- an air introducing pipe disposed between an air intake pipe of the internal combustion engine and said exhaust pipe for introducing said heated air at a point upstream of said catalyst in said exhaust pipe, said air introducing pipe having one end communicated to the air intake pipe and an other end communicated to said exhaust pipe of the internal combustion engine at a location upstream of said catalyst, said heater being installed in said air introducing pipe, and
- a heat insulator provided on a periphery of both said heater and said air introducing pipe, through which said heated air is permitted to flow, in such a way that said heat insulator surrounds both said heater and said air introducing pipe.
- 4. The apparatus of claim 3, wherein said heat insulator is split into two halves.
Priority Claims (1)
Number |
Date |
Country |
Kind |
4-208897 |
Aug 1992 |
JPX |
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Parent Case Info
This is a Continuation of application Ser. No. 08/096,980 filed Jul. 27, 1993, now abandoned.
US Referenced Citations (18)
Foreign Referenced Citations (4)
Number |
Date |
Country |
47-33956 |
Nov 1972 |
JPX |
51-62220 |
May 1976 |
JPX |
55-29003 |
Mar 1980 |
JPX |
60-90915 |
May 1985 |
JPX |
Non-Patent Literature Citations (2)
Entry |
Patent Abstracts of Japan, vol. 9, 235 (M-415), Sep. 21, 1985. |
English language abstract for Japanese Patent Application No. 55-29003. |
Continuations (1)
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Number |
Date |
Country |
Parent |
096980 |
Jul 1993 |
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