Gas generator with automatic firing function

• US 20030019387A1
• Filed: 08/22/2002
• Published: 01/30/2003
• Est. Priority Date: 03/15/2000
• Status: Abandoned Application

• Current Assignee: Daicel Chemical Industries Limited
• Original Assignee: Daicel Chemical Industries Limited
• Inventors: Wu, Jianzhou, Yamato, Yo, Takahori, Takeshi
• Application Number:
  US10/204,623
• Publication Number:
  US 20030019387A1
• Time in Patent Office: Days
• US Class Current: 102/530
• CPC Class Codes: B60R 2021/26064 characterised by auto-ignition means
• CPC Class Codes: B60R 2021/2633 with a plurality of inflation levels
• CPC Class Codes: B60R 2021/2648 comprising a plurality of combustion chambers or sub-chambers
• CPC Class Codes: B60R 21/2644 using only solid reacting substances, e.g. pellets, powder
• CPC Class Codes: C06C 9/00 Chemical contact igniters; Chemical lighters
• CPC Class Codes: C06D 5/06 by reaction of two or more solids

Abstract

A gas generator for an air bag which includes a gas generating agent having an automatic igniting function is provided.

Since a gas generating agent 9b stored in a second combustion chamber 5b has an automatic igniting function, the gas generating agent 9b automatically ignites in case of a vehicle fire, which is accompanied by the combustion of the gas generating agent 9a and the transfer charge 16a and 16b.

Claims

1. A gas generator wherein a gas generating agent having an automatic igniting function is used.

2. A gas generator according to claim 1, wherein the gas generating agent maintains the automatic igniting function even after a long period of time elapses.

3. A gas generator according to claim 1 or 2, wherein the gas generating agent maintains the automatic igniting function even after the gas generating agent has been kept at 105°

C. for 400 hours.

4. A gas generator according to any one of claims 1 to 3, wherein the gas generating agent has a low ignition temperature.

5. A gas generator according to any one of claims 1 to 4, wherein the gas generating agent has an ignition temperature of 200°

C. or lower.

6. A gas generator according to any one of claims 1 to 5, wherein an enhancer agent which does not have an automatic igniting function is further used.

18. A gas generating agent, which is used in a gas generator according to any one of claims 1 to 17.

7. A gas generator having an automatic igniting function.

8. A gas generator according to claim 7, wherein the gas generator maintains the automatic igniting function even after a long period of time elapses.

9. A gas generator according to claim 7 or 8, wherein a gas generating agent having a low ignition temperature is used.

10. A gas generator according to any one of claims 7 to 9, wherein a gas generating agent having an ignition temperature of 200°

C. or lower is used.

11. A gas generator according to any one of claims 7 to 10, wherein an enhancer agent which does not have an automatic igniting function is further used.

12. A gas generator wherein a gas generating agent having a low ignition temperature is used.

13. A gas generator according to claim 12, wherein the gas generator has an automatic igniting function.

14. A gas generator according to claim 12 or 13, wherein the gas generator maintains an automatic igniting means even after a long period of time elapses.

15. A gas generator according to any one of claims 12 to 14, wherein the gas generator maintains the automatic igniting function even after the gas generator has been kept at 105°

C. for 400 hours.

16. A gas generator according to any one of claims 12 to 15, wherein a gas generating agent having an ignition temperature of 200°

C. or lower is used.

17. A gas generator according to any one of claims 12 to 16, wherein an enhancer agent which does not have an automatic igniting function is further used.

19. A gas generating agent, which has an automatic igniting function.

20. A gas generating agent according to claim 19, wherein the gas generating agent has a low ignition temperature.

21. A gas generating agent according to claim 19 or 20, wherein the ignition temperature is 200°

C. or lower.

22. A gas generating agent according to any one of claims 19 to 21, wherein the gas generating agent maintains the automatic igniting function even after a long period of time elapses.

23. A gas generating agent according to any one of claims 19 to 22, wherein the gas generating agent maintains the automatic igniting function even after the gas generating agent has been kept at 105°

C. for 400 hours.

24. A gas generating agent, which maintains an automatic igniting function even after a long period of time elapses.

25. A gas generating agent according to claim 24, wherein the gas generating agent maintains the automatic igniting function even after the gas generating agent has been kept at 105°

C. for 400 hours.

26. A gas generating agent according to claim 24 or 25, wherein the gas generating agent has a low ignition temperature.

27. A gas generating agent according to any one of claims 24 to 26, wherein the gas generating agent has an ignition temperature of 200°

C. or lower.

28. An automatic igniting material comprising a gas generating agent having a low ignition temperature.

29. An automatic igniting material according to claim 28, wherein the ignition temperature is 200°

C. or lower.

30. An automatic igniting material according to claim 28 or 29, wherein the automatic igniting material maintains the automatic igniting function even after a long period of time elapses.

31. An automatic igniting material according to any one of claims 28 to 30, wherein the automatic igniting material maintains the automatic igniting function even after the automatic igniting material has been kept at 105°

C. for 400 hours.

32. An enhancer agent, which does not have an automatic igniting function.