CA2583618A1 - Blowby gas ventilator and crankcase emission control system of internal combustion engine - Google Patents
Blowby gas ventilator and crankcase emission control system of internal combustion engine Download PDFInfo
- Publication number
- CA2583618A1 CA2583618A1 CA 2583618 CA2583618A CA2583618A1 CA 2583618 A1 CA2583618 A1 CA 2583618A1 CA 2583618 CA2583618 CA 2583618 CA 2583618 A CA2583618 A CA 2583618A CA 2583618 A1 CA2583618 A1 CA 2583618A1
- Authority
- CA
- Canada
- Prior art keywords
- combustion engine
- internal combustion
- exhaust
- control system
- emission control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- Y02T10/16—
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
In an internal combustion engine, a part of fresh air extracted from an induction system is heated and introduced into a crank chamber to increase a temperature of an atmosphere in the crank chamber to promote atomization of a blowby gas to prevent water in the blowby gas from mixing into lubricating oil as much as possible to suppress deterioration of lubricating oil. A part of a blowby gas recirculating apparatus is defined by an outer space of a double-walled structure of a double-walled exhaust gas purification catalyst or exhaust pipe provided between an internal combustion engine and an exhaust muffler. Thus, a blowby gas can be effectively heated with a high-temperature exhaust gas, the structure can be simplified, and a cost can be lowered.
Claims (20)
1. A blowby gas ventilator of an internal combustion engine having a crankcase emission control system of the internal combustion engine, comprising:
a fresh air intake path for introducing a part of fresh air from an induction system to a crank chamber; and fresh air heating means for heating the fresh air intake path with the internal combustion engine or an auxiliary machine.
a fresh air intake path for introducing a part of fresh air from an induction system to a crank chamber; and fresh air heating means for heating the fresh air intake path with the internal combustion engine or an auxiliary machine.
2. The blowby gas ventilator of the internal. combustion engine according to Claim 1, further comprising an air cleaner case of a double-walled structure, wherein at least a part of of fresh air intake path corresponds to an outer space defined between double walls of the air cleaner case.
3. The blowby gas ventilator of the internal combustion engine according to Claim 2, wherein an exhaust system including an exhaust muffler, an exhaust gas purification catalyst, and an exhaust pipe is used as fresh air heating means and provided adjacent to the double-walled structure of the air cleaner case.
4. The blowby gas ventilator of an internal combustion engine according to Claim 1, wherein the exhaust pipe has a double-walled structure, an exhaust gas path corresponds to an inner space of the exhaust pipe of the double-walled structure, and at least a part of the fresh air flowing through the fresh air intake path moves through an outer space defined by double walls of the exhaust pipe.
5. The blowby gas ventilator of an internal combustion engine according to Claim 4, wherein the exhaust pipe having the double-walled structure extends between a downstream end of an upstream end of a downstream side exhaust gas purification catalyst and an upstream end of a downstream side exhaust gas purification catalyst.
6. The blowby gas ventilator of an internal combustion engine according to Claim 2, wherein an exhaust system including an exhaust muffler, one or more exhaust gas purification catalysts, interconnected by two or more exhaust pipes is used as fresh air heating means and is provided adjacent to the double-walled structure of the air cleaner case.
7. A crankcase emission control system of an internal combustion engine, comprising:
an exhaust gas purification catalyst provided between the internal combustion engine and an exhaust muffler; and blowby gas recirculating means for recirculating a blowby gas generated in the internal combustion engine to an induction system, wherein the exhaust gas purification catalyst has a double-walled structure, and a part of the blowby gas recirculating means is defined by an outer space of the double-walled structure of the exhaust gas purification catalyst.
an exhaust gas purification catalyst provided between the internal combustion engine and an exhaust muffler; and blowby gas recirculating means for recirculating a blowby gas generated in the internal combustion engine to an induction system, wherein the exhaust gas purification catalyst has a double-walled structure, and a part of the blowby gas recirculating means is defined by an outer space of the double-walled structure of the exhaust gas purification catalyst.
8. The crankcase emission control system of an internal combustion engine according to Claim 7, further comprising:
an air cleaner case provided above the internal combustion engine mounted to a vehicle with a cylinder bent forward, wherein a downstream portion of the blowby gas recirculating means is connected to the air cleaner case, and the exhaust gas purification catalyst or an exhaust pipe is provided between a front end of the internal combustion engine and the air cleaner case.
an air cleaner case provided above the internal combustion engine mounted to a vehicle with a cylinder bent forward, wherein a downstream portion of the blowby gas recirculating means is connected to the air cleaner case, and the exhaust gas purification catalyst or an exhaust pipe is provided between a front end of the internal combustion engine and the air cleaner case.
9. The crankcase emission control system of an internal combustion engine according to claim 7, wherein the exhaust gas purification catalyst or an exhaust pipe is provided in a space of a vehicle body cover covering the internal combustion engine.
10. The crankcase emission control system of an internal combustion engine according to claim 8, wherein the exhaust gas purification catalyst or the exhaust pipe is provided in a space of a vehicle body cover covering the internal combustion engine.
11. The crankcase emission control system of an internal combustion engine according to claim 7, wherein the exhaust gas purification catalyst is disposed in a position higher than a position of the internal combustion engine.
12. The crankcase emission control system of an internal combustion engine according to claim 8, wherein an exhaust system including an exhaust muffler, the exhaust gas purification catalyst, and the exhaust pipe is used as fresh air heating means and provided adjacent to the air cleaner case.
13. The crankcase emission control system, of an internal combustion engine according to claim 7, further comprising an exhaust pipe having a double wall structure.
14. A crankcase emission control system of an internal combustion engine, comprising:
an exhaust pipe provided between the internal combustion engine and an exhaust muffler; and blowby gas recirculating means for recirculating a blowby gas generated in the internal combustion engine to an induction system, wherein the exhaust pipe has a double-walled structure, and a part of the blowby gas recirculating means is defined by an outer space of the double-walled structure of the exhaust pipe.
an exhaust pipe provided between the internal combustion engine and an exhaust muffler; and blowby gas recirculating means for recirculating a blowby gas generated in the internal combustion engine to an induction system, wherein the exhaust pipe has a double-walled structure, and a part of the blowby gas recirculating means is defined by an outer space of the double-walled structure of the exhaust pipe.
15. The crankcase emission control system of an internal combustion engine according to Claim 14, further comprising:
an air cleaner case provided above the internal combustion engine mounted to a vehicle with a cylinder bent forward, wherein a downstream portion of the blowby has recirculating means is connected to the air cleaner case, and the exhaust gas purification catalyst or the exhaust pipe is provided between a front end of the internal combustion engine and the air cleaner case.
an air cleaner case provided above the internal combustion engine mounted to a vehicle with a cylinder bent forward, wherein a downstream portion of the blowby has recirculating means is connected to the air cleaner case, and the exhaust gas purification catalyst or the exhaust pipe is provided between a front end of the internal combustion engine and the air cleaner case.
16. The crankcase emission control system of an internal combustion engine according to claim 14, wherein the exhaust gas purification catalyst or the exhaust pipe is provided in a space of a vehicle body cover covering the internal combustion engine.
17. The crankcase emission control system of an internal combustion engine according to claim 15, wherein the exhaust gas purification catalyst of the exhaust pipe is provided in a space of a vehicle body cover covering the internal combustion engine.
18. The crankcase emission control system of an internal combustion engine according to claim 14, wherein the exhaust gas purification catalyst is disposed in a position higher than a position of the internal combustion engine.
19. The crankcase emission control system of an internal combustion engine according to claim 15, wherein an exhaust system including an exhaust muffler, the exhaust gas purification catalyst, and the exhaust pipe is used as fresh air heating means and is provided adjacent to the air cleaner case.
20. The crankcase emission control system of an internal combustion engine according to claim 14, wherein the exhaust pipe has a double wall structure.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006097218A JP4762770B2 (en) | 2006-03-31 | 2006-03-31 | Blow-by gas reduction device for internal combustion engine |
| JP2006-097218 | 2006-03-31 | ||
| JP2006-097217 | 2006-03-31 | ||
| JP2006097217A JP4641965B2 (en) | 2006-03-31 | 2006-03-31 | Blow-by gas ventilation system for internal combustion engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2583618A1 true CA2583618A1 (en) | 2007-09-30 |
| CA2583618C CA2583618C (en) | 2011-03-22 |
Family
ID=38561370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2583618 Expired - Fee Related CA2583618C (en) | 2006-03-31 | 2007-03-30 | Blowby gas ventilator and crankcase emission control system of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2583618C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111025A (en) * | 2022-08-30 | 2022-09-27 | 中国第一汽车股份有限公司 | Direct-injection hydrogen internal combustion engine crankcase system, vehicle with same and control method |
| DE112017006443B4 (en) | 2016-12-21 | 2024-10-10 | Ford Otomotiv Sanayi A.S. | Motor circuit with adjustable heating properties |
-
2007
- 2007-03-30 CA CA 2583618 patent/CA2583618C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112017006443B4 (en) | 2016-12-21 | 2024-10-10 | Ford Otomotiv Sanayi A.S. | Motor circuit with adjustable heating properties |
| CN115111025A (en) * | 2022-08-30 | 2022-09-27 | 中国第一汽车股份有限公司 | Direct-injection hydrogen internal combustion engine crankcase system, vehicle with same and control method |
| CN115111025B (en) * | 2022-08-30 | 2022-12-13 | 中国第一汽车股份有限公司 | Direct-injection hydrogen internal combustion engine crankcase system, vehicle with same and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2583618C (en) | 2011-03-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20150330 |