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US 4,094,278 AGranted
Two-stroke combustion engines
OwnerWalter Frankeinventor
Life of this patent
Estimating the term…
Abstract
A two-stroke combustion engine with intake and exhaust ports which are indirectly or directly controllable in accordance with the reciprocating motion of a working piston in a cylinder space, wherein at one side of the piston there is a working chamber accessible to an ignition device and connectible to an outlet, and at the other side of the piston there is a compression chamber, and wherein there is associated with the working piston at least a second auxiliary piston functioning as a compression piston, which operates in a compression chamber at least in a single acting mode.
Claims7
A two-stroke internal combustion engine comprising:
- working cylinder means;
- auxiliary cylinder means;
- working piston means reciprocally operable within said working cylinder means;
- auxiliary piston means reciprocally operable within said auxiliary cylinder means;
- working chamber means defined by said working cylinder means on one side of said working piston means;
- auxiliary working chamber means defined by said auxiliary cylinder means on one side of said auxiliary piston means;
- ignition means provided in both said working chamber means and said auxiliary working chamber means;
- first inlet port means and first outlet port means in both said working cylinder means and said auxiliary cylinder means, said first inlet and first outlet port means for each being controlled, respectively, by movement of said working piston means and said auxiliary piston means;
- first channel means connecting said first outlet port means of said working cylinder means with said first inlet port means of said auxiliary cylinder means to effect transfer of all of the exhaust gasses in said working chamber means into said auxiliary working chamber means at the end of a power stroke of said working piston means;
- said auxiliary piston means operating to effect compression within said auxiliary working chamber means of the total exhaust gas quantity thus transferred from said working chamber means;
- said ignition means operating to effect ignition of said compressed exhaust gasses within said auxiliary working chamber means thereby to effect a power stroke of said auxiliary piston means as a result of said ignition of said exhaust gasses.
8 more elements
Dependencies are inferred from the claim text.