초록 ▼

A two-stroke cycle internal combustion engine (10) has a one-piece cylinder housing (14) which is vertically aligned with a crank housing (16) and a valve housing (12) mounted at a top section of the cylinder housing. The valve housing (12), cylinder housing (14), and crank housing (16) are generall

A two-stroke cycle internal combustion engine (10) has a one-piece cylinder housing (14) which is vertically aligned with a crank housing (16) and a valve housing (12) mounted at a top section of the cylinder housing. The valve housing (12), cylinder housing (14), and crank housing (16) are generally formed in a substantially symmetrical manner about a vertical axis line (20). The valve housing (14) contains a valve control mechanism (54) which aids in the reversible vertical placement of a valve member (34) having an extended length value stem (38) and a valve head (36). A controlled air insertion mechanism (92) provides for high pressure air to be inserted into a combustion chamber (42) to thoroughly expel spent gases through exhaust port 46 and there is further provided a recess (102) for cooperation with a relief opening (104) to relieve gas pressures built up.

대표청구항 ▼

1. A two cycle engine comprising:(a) a valve housing having a reversibly displaceable valve member displaceable in a substantially vertical direction, said valve member having a valve head and a valve stem, said valve member being displaceable between an open position and a closed position; (b) a cy

1. A two cycle engine comprising:(a) a valve housing having a reversibly displaceable valve member displaceable in a substantially vertical direction, said valve member having a valve head and a valve stem, said valve member being displaceable between an open position and a closed position; (b) a cylinder housing being substantially vertically aligned and secured to said valve housing, said cylinder housing having an upper section and a lower section forming a combustion chamber containing a reversibly displaceable piston member, said cylinder housing upper section having (1) at least two air intake ports, (2) a fuel injection port, and (3) means for igniting a fuel and air mixture, said cylinder housing lower section having an exhaust port for egress of exhaust gases; (c) a crank housing coupled to said cylinder housing lower section for containing a crank member coupled to said piston member; (d) an air intake plenum located within said valve housing and surrounding said valve stem, said air intake plenum in fluid communication with said intake ports; and, (e) valve control means for initiating displacement of said valve member when said valve member is in a substantially open position and terminating displacement of said valve member when said valve member is in a substantially closed position, said valve control means including: (i) a solenoid having a solenoid actuating rod extending through a wall of said valve housing; and (ii) valve trigger means located internal said valve housing, for intercepting said valve member when said valve member is in said substantially open and closed positions, said valve trigger means being pivotally coupled to said valve housing wall and coupled to said solenoid actuating rod. 2. The two cycle engine as recited in claim 1 where said valve stem includes a stem lug member extending in a transverse direction for being contacted by said valve trigger means is pivotally rotated by said solenoid actuating rod.3. The two cycle engine as recited in claim 2 where said valve trigger means includes at least one C-shaped trigger member having opposing upper and lower arm members and a substantially vertically directed base element pivotally coupled to said valve housing wall.4. The two cycle engine as recited in claim 3 where said solenoid actuating rod is coupled to either said upper or lower arm members of said C-shaped trigger member.5. The two cycle engine as recited in claim 3 where said opposing upper and lower arm members extend in an inclined direction with respect to said vertical direction for gradually initiating and terminating displacement of said valve member when said upper and lower arm members intercept said valve lug member.6. The two cycle engine as recited in claim 2 where said valve trigger means includes a pair of C-shaped trigger members each having opposing upper and lower arm members, said C-shaped trigger members being displaced from each other in said transverse direction by a distance greater than an outer diameter of said valve stem for capturing said valve stem therebetween and less than a transverse dimension of said stem lug member.7. The two cycle engine as recited in claim 1 where said air intake ports are angularly formed through an upper section wall of said cylinder housing for providing fluid communication from said air intake plenum to said combustion chamber.8. The two cycle engine as recited in claim 7 where air intake ports are skewed with respect to a vertical axis of said vertically directed valve member for providing a vortexing of air being inserted to said combustion chamber from said air intake plenum.9. A two cycle engine comprising:(a) a valve housing having a reversibly displaceable valve member displaceable in a substantially vertical direction, said valve member having a valve head and a valve stem, said valve member being displaceable between an open position and a closed position, said valve housing including an oil composition disposed therein for maintaining lubrication of said valve during displacement; (b) a cylinder housing being substantially vertically aligned and secured to said valve housing, said cylinder housing having an upper section and a lower section forming a combustion chamber containing a reversibly displaceable piston member, said cylinder housing upper section having (1) at least two air intake ports, (2) a fuel injection port, and (3) means for igniting a fuel and air mixture, said cylinder housing lower section having an exhaust port for egress of exhaust gases; (c) a crank housing coupled to said cylinder housing lower section for containing a crank member coupled to said piston member; (d) an air intake plenum located within said valve housing and surrounding said valve stem, said air intake plenum in fluid communication with said intake ports; and, (e) valve control means for initiating displacement of said valve member when said valve member is in a substantially open position and terminating displacement of said valve member when said valve member is in a substantially closed position. 10. A two cycle engine comprising:a valve housing having a reversibly displaceable valve member displaceable in a substantially vertical direction, said valve member having a valve head and a valve stem, said valve member being displaceable between an open position and a closed position; a cylinder housing being substantially vertically aligned and secured to said valve housing, said cylinder housing having an upper section and a lower section forming a combustion chamber containing a reversibly displaceable piston member, said cylinder housing upper section having (1) at least two air intake ports, (2) a fuel injection port, and (3) means for igniting a fuel and air mixture, said cylinder housing lower section having an exhaust port for egress of exhaust gases; a crank housing coupled to said cylinder housing lower section for containing a crank member coupled to said piston member; an air intake plenum located within said valve housing and surrounding said valve stem, said air intake plenum in fluid communication with said intake ports; valve control means for initiating displacement of said valve member when said valve member is in a substantially open position and terminating displacement of said valve member when said valve member is in a substantially closed position; and, controlled air insertion means coupled to a wall of said valve housing in fluid communication with said air intake plenum for charging said combustion chamber with high pressure air, said controlled air insertion means including: (a) a stationary conduit having an arcuately directed stationary conduit planar opening formed through a wall thereof for fluid communication with said air intake plenum; and, (b) a rotatably displaceable conduit concentrically located within said stationary conduit and rotatable with respect thereto, said rotatably displaceable conduit having a rotatably displaceable conduit opening for alignment with said stationary conduit plenum opening during rotational displacement of said rotatably displaceable conduit. 11. The two cycle engine as recited in claim 10 where said rotatably displaceable conduit includes a recess formed within an outer wall thereof for alignment with a stationary conduit pressure relief opening formed through said wall of said stationary conduit for relief of excessive pressures in said combustion chamber.12. The two cycle engine as recited in claim 11 where said rotatably displaceable conduit recess is aligned with said stationary conduit pressure relief opening and is in fluid communication with said air intake plenum during a predetermined portion of a cycle of said two cycle engine.13. The two cycle engine as recited in claim 10 where said air intake ports are angularly through an upper section wall of said cylinder housing for vortexing high pressure air into said combustion chamber when said stationary conduit plenum opening and said rotatably displaceable conduit opening are in fluid communication with said air intake plenum.14. The two cycle engine as recited in claim 13 where said air intake ports extend in a skewed line with respect to a vertical axis of said cylinder housing.15. The two cycle engine as recited in claim 14 where said air intake ports are positioned symmetrically about said vertical axis of said cylinder housing.16. The two cycle engine as recited in claim 10 where said valve head is substantially circular in cross-section and includes a diameter substantially one-half the diameter of a base of said cylinder housing for efficiently expelling exhaust gases.17. The two cycle engine as recited in claim 16 where said value head includes a lower surface which is arcuately formed.18. The two cycle engine as recited in claim 10 where said value housing includes an oil composition for lubricating said valve stem.