×

Internal combustion engine having an auxiliary combustion chamber without an intake valve

  • US 4,108,133 A
  • Filed: 08/24/1976
  • Issued: 08/22/1978
  • Est. Priority Date: 07/31/1974
  • Status: Expired due to Term
First Claim
Patent Images

1. An internal combustion engine comprising:

  • a cylinder;

    a cylinder head;

    a reciprocable piston snugly received in said cylinder;

    said cylinder head and said piston defining a main combustion chamber therebetween;

    means defining a blind hole in said cylinder head, the open end of said blind hole opening into said main combustion chamber and the opposite end of said blind hole most remote from said main combustion chamber being completely closed;

    an auxiliary combustion chamber shell defining an auxiliary combustion chamber therein, said shell being pressedly fitted in said blind hole from the main combustion chamber so that the entire exterior surface of the auxiliary combustion chamber shell tightly contacts the wall of the blind hole, said auxiliary combustion chamber having no intake valve;

    a passage communicating said auxiliary combustion chamber with said main combustion chamber; and

    an ignition spark plug having an electrode positioned in said passage whereby a substantially uniform lean fuel-air mixture, drawn into the main combustion chamber through an intake valve on the intake stroke of the piston, is forced into the auxiliary combustion chamber on the compression stroke of the piston and ignited and burned thereby igniting and burning the lean fuel-air mixture in the main combustion chamber by the torch flame via said passage from the auxiliary combustion chamber.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×