JPS5447935A - Ignition device for rotary piston engine - Google Patents
Ignition device for rotary piston engineInfo
- Publication number
- JPS5447935A JPS5447935A JP11415077A JP11415077A JPS5447935A JP S5447935 A JPS5447935 A JP S5447935A JP 11415077 A JP11415077 A JP 11415077A JP 11415077 A JP11415077 A JP 11415077A JP S5447935 A JPS5447935 A JP S5447935A
- Authority
- JP
- Japan
- Prior art keywords
- insulator
- plug
- ignition device
- creeping
- electrode
- 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
Links
Abstract
PURPOSE: To improve the ignition of an ignition device inserted into the plug hole perforated at a casing with a semi-creeping plug at the engine idling and low loading time for long period without losing the features of the plug.
CONSTITUTION: This ignition device consists of an insulator 13 with a centrl electrode 12 at the center, side brackets 15 surronding the outer periphery of the insulator 13 with a grounding electrode 15 formed at the end thereof, and a semi-creeping plug 10 inserted into a plug hole 11 forming creeping gap gS formed at the end surface of the insulator 13 and an air gap ga formed between the outer periphery of the insulator 13 and the grounding electrode 16 to thereby from spark gap. A plurality of circumferential slits 14 formed to cut into the ends of the brackets 15 toward inwardly axial direction in the device for a rotary piston engine thus constructed. The electrode 16 formed at the portion provided with no slit 14 is radially projected in predetermined length to be disposed axially outwardly from the end of the insulator 13
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11415077A JPS5447935A (en) | 1977-09-22 | 1977-09-22 | Ignition device for rotary piston engine |
US05/941,591 US4219003A (en) | 1977-09-16 | 1978-09-12 | Ignition means for rotary piston engines |
CA311,415A CA1094415A (en) | 1977-09-16 | 1978-09-15 | Ignition means for rotary piston engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11415077A JPS5447935A (en) | 1977-09-22 | 1977-09-22 | Ignition device for rotary piston engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5447935A true JPS5447935A (en) | 1979-04-16 |
JPS5512712B2 JPS5512712B2 (en) | 1980-04-03 |
Family
ID=14630390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11415077A Granted JPS5447935A (en) | 1977-09-16 | 1977-09-22 | Ignition device for rotary piston engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5447935A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5512712B2 (en) * | 1977-09-22 | 1980-04-03 | ||
JP2004165168A (en) * | 1999-06-25 | 2004-06-10 | Ngk Spark Plug Co Ltd | Spark plug |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5077738A (en) * | 1973-10-01 | 1975-06-25 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5447935A (en) * | 1977-09-22 | 1979-04-16 | Mazda Motor Corp | Ignition device for rotary piston engine |
-
1977
- 1977-09-22 JP JP11415077A patent/JPS5447935A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5077738A (en) * | 1973-10-01 | 1975-06-25 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5512712B2 (en) * | 1977-09-22 | 1980-04-03 | ||
JP2004165168A (en) * | 1999-06-25 | 2004-06-10 | Ngk Spark Plug Co Ltd | Spark plug |
Also Published As
Publication number | Publication date |
---|---|
JPS5512712B2 (en) | 1980-04-03 |
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