Mixture formation unit and two stroke engine having a mixture formation unit
AssigneeAndreas Stihl AG & Co. KG
InventorsFelix Servatius, Wolfgang Luithardt, Horst Denner, Martin Christoph Arenz
Life of this patent
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Abstract
A mixture formation unit has a base body in which an intake channel section is formed. The intake channel section extends from a first end side of the base body to a second end side of the base body. The mixture formation unit has at least one rectilinearly extending channel which opens into the intake channel section. The channel opens at the first end side of the base body. The mixture formation unit is preferably provided for a two stroke engine whose intake channel is divided downstream of the mixture formation unit into a mixture channel and an air channel.
Claims18
A mixture formation unit comprising:
- a base body in which an intake channel section is formed;
- said base body having a first end side and a second end side;
- said intake channel section extending from said first end side of said base body to said second end side of said base body;
- at least one rectilinearly extending channel which opens into the intake channel section;
- and,
- wherein said at least one rectilinearly extending channel opens at said first end side of said base body.
A two stroke engine comprising:
- an intake channel having an intake channel section;
- a mixture formation unit having a base body in which said intake channel section is formed;
- said base body having a first end side and a second end side;
- said intake channel section extending from said first end side of said base body to said second end side of said base body;
- said mixture formation unit having at least one rectilinearly extending channel which opens into said intake channel section;
- said at least one rectilinearly extending channel opening at said first end side of said base body;
- a cylinder having a combustion chamber formed therein;
- a crankcase defining a crankcase interior;
- a crankshaft mounted in said crankcase;
- a piston configured to drive said crankshaft;
- said combustion chamber being delimited by said piston;
- said crankcase interior being connected in an at least one position of said piston to said combustion chamber via at least one transfer channel;
- said intake channel being divided by a partition wall downstream of said intake channel section;
- and,
- said partition wall dividing said intake channel into a mixture channel for supplying a fuel/air mixture into said combustion chamber and into an air channel for supplying scavenging advance air to said at least one transfer channel.
Dependencies are inferred from the claim text.