Fuel injection and ignition device for internal combustion engines

• US 3,373,724 A
• Filed: 02/08/1965
• Issued: 03/19/1968
• Est. Priority Date: 02/10/1964
• Status: Expired due to Term

• Current Assignee: Hermann Papst
• Original Assignee: Hermann Papst
• Inventors: HERMANN PAPST
• Application Number:
  US04/430,844
• Time in Patent Office: 1,135 Days
• US Class Current: 123/297
• CPC Class Codes: F02B 23/00 Other engines characterised by special shape or construction of combustion chambers to improve operation engines with incandescent chambers F02B9/08
• CPC Class Codes: F02B 2720/258 with compression and ignition exclusively in the cylinder
• CPC Class Codes: F02M 57/06 the devices being sparking plugs
• CPC Class Codes: F02N 19/08 Arrangement thereof
• CPC Class Codes: F23Q 7/001 Glowing plugs for internal-combustion engines
• CPC Class Codes: H05B 3/00 Ohmic-resistance heating
• CPC Class Codes: H05B 3/42 non-flexible
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies

Claims

1. A UNITARY FUEL INJECTION AND IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE COMPRISING, IN COMBINATION, A BODY OF THERMALLY INSULATING MATERIAL AND FORMED WITH A FIRST BORE OF UNIFORM DIAMETER THERETHROUGH FORMING A CHAMBER OF SMALL VOLUME AND COMMUNICATING AT ONE END OF SAID FIRST BORE WITH THE COMBUSTION CHAMBER OF THE ENGINE;

A PIN-SHAPED ELECTRICALLY HEATABLE IGNITER ELEMENT LOCATED WITH SMALL CLEARANCE IN A SECOND BORE FORMED IN SAID BODY INCLINED TO AND INTERSECTING SAID FIRST BORE IN SUCH A MANNER THAT THE TIP OF SAID ELEMENT IS LOCATED AT THE INTERSECTION OF SAID SECOND AND SAID FIRST BORE SUBSTANTIALLY ALIGNED WITH THE SURFACE OF THE LATTER;

NOZZLE MEANS COMMUNICATING WITH THE OTHER END OF SAID FIRST BORE FOR INTERMITTENTLY INJECTING FUEL THEREINTO;

ELONGATED GUIDE MEANS COAXIALLY ARRANGED WITH SAID NOZZLE MEANS PROJECTING THEREFROM PAST SAID TIP TO SAID IGNITER ELEMENT AT LEAST TO SAID ONE END OF SAID BORE FOR GUIDING A JET OF FUEL INJECTED BY THE NOZZLE MEANS CLOSELY SPACED FROM