SYSTEM FOR CORRECTING TURBO LAG

• US 20120079824A1
• Filed: 06/28/2011
• Published: 04/05/2012
• Est. Priority Date: 09/30/2010
• Status: Abandoned Application

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Son, Jin Wook, Yang, Jei Choon, Kong, Jin Kook, Woo, Soo Hyung, Kim, Young Nam, Kim, Jin Soon, Chang, Won Seok, Cha, Jeong Hwa
• Application Number:
  US13/170,917
• Publication Number:
  US 20120079824A1
• Time in Patent Office: Days
• US Class Current: 60/602
• CPC Class Codes: F02B 33/40 of non-positive-displacement type
• CPC Class Codes: F02B 39/06 the engine torque being divided by a differential gear for driving a pump and the engine output shaft
• CPC Class Codes: F02D 23/00 Controlling engines characterised by their being supercharged
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies

Abstract

A system for correcting turbo lag may include an engine provided with a plurality of cylinders, an intake manifold for supplying air to the plurality of cylinders, and an exhaust manifold for exhausting exhaust gas generated in the plurality of cylinders, an intake passage connected to the intake manifold so as to supply fresh air to the intake manifold, an exhaust passage connected to the exhaust manifold so as to exhaust the exhaust gas gathered in the exhaust manifold, a turbo charger provided with a turbine mounted at the exhaust manifold or the exhaust passage and rotated by the exhaust gas and a first compressor mounted at the intake passage and connected to the turbine so as to rotate with the turbine and compress the air of the intake passage, a bypass passage branching off at a first point of the intake passage and joining the intake passage at a second point of the intake passage downstream of the first point, a second compressor mounted at the bypass passage and compressing the air passing through the bypass passage, and driving means generating power for operating the second compressor and selectively supplying the power to the second compressor through a power delivery device.

Claims

1. A system for correcting turbo lag, comprising:

an engine includes a plurality of cylinders, an intake manifold for supplying air to the plurality of cylinders, and an exhaust manifold for exhausting exhaust gas generated in the plurality of cylinders;

an intake passage connected to the intake manifold to supply fresh air to the intake manifold;

an exhaust passage connected to the exhaust manifold to exhaust the exhaust gas gathered in the exhaust manifold;

a turbo charger includes a turbine mounted at the exhaust manifold or the exhaust passage and rotated by the exhaust gas and a first compressor mounted at the intake passage and connected to the turbine to rotate with the turbine and compress the air of the intake passage;

a bypass passage branching off at a first point of the intake passage and joining the intake passage at a second point of the intake passage downstream of the first point;

a second compressor mounted at the bypass passage and compressing the air passing through the bypass passage; and

driving means generating power for operating the second compressor and selectively supplying the power to the second compressor through a power delivery device.

2. The system of claim 1, wherein the power delivery device comprises a plurality of pulleys and at least one of belts and shafts connecting each pulley to the second compressor, the driving means, or other pulley.

3. The system of claim 1, wherein the second compressor is operated at a predetermined turbo lag region.

4. The system of claim 1, further comprising a control valve selectively communicating the bypass passage to the intake passage.

5. The system of claim 4, wherein the control valve opens or closes automatically by a difference between air pressure of the intake passage and air pressure of the bypass passage near a mounting portion thereof.

6. The system of claim 1, wherein the belt is a flat belt.

7. The system of claim 1, wherein a cooling apparatus for cooling the air is mounted at the intake passage downstream of the turbo charger.

8. The system of claim 7, wherein the first point and the second point are positioned at the intake passage upstream of the turbo charger.

9. The system of claim 8, wherein the driving means comprises:

a crankshaft pulley mounted at a crankshaft of the engine and rotating with the crankshaft;

a driving pulley connected to the crankshaft pulley through a driving belt; and

a clutch selectively connecting the power delivery device to the driving pulley to selectively transmit the power of the driving means.

10. The system of claim 8, wherein the driving means is a motor connected to the power delivery device and selectively generating the power supplied to the second compressor.

11. The system of claim 7, wherein the first point is positioned at the intake passage upstream of the turbo charger and the second point is positioned between the turbo charger of the intake passage and the cooling apparatus.

12. The system of claim 11, wherein the driving means comprises:

a crankshaft pulley mounted at a crankshaft of the engine and rotating with the crankshaft;

a driving pulley connected to the crankshaft pulley through a driving belt; and

a clutch selectively connecting the power delivery device to the driving pulley to selectively transmit the power of the driving means.

13. The system of claim 11, wherein the driving means is a motor connected to the power delivery device and selectively generating the power supplied to the second compressor.

14. The system of claim 7, wherein the first point and the second point are positioned between the turbo charger at the intake passage and the cooling apparatus.

15. The system of claim 14, wherein the driving means comprises:

a crankshaft pulley mounted at a crankshaft of the engine and rotating with the crankshaft;

a driving pulley connected to the crankshaft pulley through a driving belt; and

a clutch selectively connecting the power delivery device to the driving pulley to selectively transmit the power of the driving means.

16. The system of claim 14, wherein the driving means is a motor connected to the power delivery device and selectively generating the power supplied to the second compressor.

17. The system of claim 7, wherein the first point and the second point are positioned at the intake passage downstream of the cooling apparatus.

18. The system of claim 17, wherein the driving means comprises:

a crankshaft pulley mounted at a crankshaft of the engine and rotating with the crankshaft;

a driving pulley connected to the crankshaft pulley through a driving belt; and

a clutch selectively connecting the power delivery device to the driving pulley to selectively transmit the power of the driving means.

19. The system of claim 17, wherein the driving means is a motor connected to the power delivery device and selectively generating the power supplied to the second compressor.

20. A system for correcting turbo lag which increases air amount supplied to an engine at a predetermined turbo lag region, comprising:

an intake passage for supplying the air to the engine;

an exhaust passage for exhausting an exhaust gas generated in the engine to the exterior;

a turbo charger disposed between the intake passage and the exhaust passage and pressurizing the air by using energy of the exhaust gas;

a bypass passage disposed in parallel with the intake passage at some region of the intake passage;

a control valve selectively communicating the bypass passage with the intake passage at the predetermined turbo lag region; and

a compressor operating at the turbo lag region to pressurize the air passing through the bypass passage and to supply the pressurized air to the intake passage.