Fuel conserving engine improvement

Claim 2

In a four-stroke cycle internal combustion engine including at least a pair of complemental first and second cylinders within which first and second pistons, respectively, reciprocate in unison in the same direction on different strokes, and further including means defining a crankcase gas collection area in communication with a crankcase adjacent said first and second cylinders, the fuel conserving engine improvement comprising: conduit means providing fluid communication between said first and second cylinders through openings uncovered by said first and second pistons at the bottom of their intake and power strokes, respectively, whereby exhaust gases in said second cylinder can flow into said first cylinder; and blower means in fluid communication with said crankcase gas collection area and including a blower operative to discharge crankcase gases downstream into said conduit means whereby any lubricating oil and exhaust gases tending to collect in said conduit means are circulated toward said crankcase upon uncovering of said openings subsequent upward movement of said first and second pistons on their compression and exhaust strokes, respectively, said blower means including check valve means preventing upstream gas flow from said conduit means to said blower.

Claim 3

In a four-stroke cycle internal combustion engine including at least a pair of complemental first and second cylinders within which first and second pistons, respectively, reciprocate in unison in the same direction on different strokes, and further including means defining a crankcase gas collection area, the fuel conserving engine improvement comprising: an elongated conduit opening at its opposite extremeties into said first and second cylinders through openings uncovered by the upper portions of said first and second pistons at the bottom of their intake and power strokes, respectively, whereby exhaust gases in said second cylinder can flow through said conduit and into said first cylinder; and a blower coupled to said crankcase gas collection area and to said conduit and operative to draw gases from said crankcase gas collection area and discharge said gases into said conduit whereby any lubricating oil and exhaust gases tending to collect in said conduit are discharged below the lower portion of said first and second pistons upon uncovering of said openings subsequent upward movement of said first and second pistons on their compression and exhaust strokes, respectively, said blower including check valve means preventing exhaust gas flow from flowing to said blower when said first and second pistons are at the bottom of their intake and power strokes, respectively.

Claim 4

In a four-stroke cycle internal combustion engine including at least a pair of complemental first and second cylinders within which first and second pistons, respectively, reciprocate in unison in the same direction on different strokes, and further including means defining a crankcase gas collection area, the fuel conserving engine improvement comprising: an elongated conduit opening at its opposite extremeties into said first and second cylinders through openings uncovered by the upper portions of said first and second pistons at the bottom of their intake and power strokes, respectively, whereby exhaust gases in said second cylinder can flow through said conduit and into said first cylinder; and a blower coupled to said crankcase gas collection area and to said conduit and operative to draw gases from said crankcase gas collection area and discharge said gases into said conduit whereby any lubricating oil and exhaust gases tending to collect in said conduit are discharged below the lower portion of said first and second pistons upon uncovering of said openings subsequent upward movement of said first and second pistons on their compression and exhaust strokes, respectively, said blower including check valve means preventing exhaust gas flow from flowing to said blower when said first and second pistons are at the bottom of their intake and power strokes, respectively.

Claim 5

A fuel conserving engine improvement according to claim 2 wherein said engine is characterized by wall means spaced from said first and second cylinders to define a coolant space, and wherein the opposite extremities of said conduit extend in liquid sealing relation through said wall means, across the intervening coolant spaces and within said openings in said first and second cylinders, respectively.

Claim 6

A fuel conserving engine improvement according to claim 3 wherein said opposite extremities are threadably disposed within said openings in said first and second cylinders, respectively.

Claim 7

A fuel conserving engine improvement according to claim 3 wherein said opposite extremities are disposed in welded relation through said wall means.

Claim 8

A fuel conserving engine improvement according to claim 2 wherein said engine is characterized by wall means spaced from said first and second cylinders to define a coolant space, and including engine block sections having passages therethrough and interposed between said wall means and said first and second cylinders, adjacent said openings in said first and second cylinders, respectively, whereby said passages constitute constructions of said openings, respectively, and said opposite extremities of said conduit are connected to said passages, respectively.

Claim 9

A fuel conserving engine improvement according to claim 6 wherein said engine block sections are made integral with said first and second cylinders and said wall means.

Claim 10

A fuel conserving engine improvement according to claim 6 wherein said opposite extremities are threadably disposed within said passages, respectively.