Circular piston internal combustion machine with reduced short circuit flow

Claim 2

A circular piston internal combustion machine, which includes: mantle means, the inner cross-sectional surface of which has the shape of a two-arc epitrochoid with a first lobe and a second lobe located opposite to said first lobe, said member means associated with said mantle means and together therewith defining incompletely separated chamber means having gas inlet and outlet means on opposite sides of said first lobe, eccentric shaft means rotatably journalled in said side member means, rotary piston means of a spherical triangular crosssectional shape rotatably supported by said eccentric shaft means, conduit means at least partially located in said mantle means between said inlet and said outlet means and leading into the interior of said mantle means while forming an angle with the plane passing through said first and second lobes for conveying a gas pressure from an area of higher pressure in said chamber means and heading into a gap formed by said piston means and said mantle means between said inlet and outlet means.

Claim 3

A circular piston internal combustion machine, which includes: mantle means, the inner cross-sectional surface of which has the shape of a two-arc epitrochoid with a first lobe and a second lobe located opposite to said first lobe, said member means associated with said mantle means and together therewith defining incompletely separated chamber means having gas inlet an outlet means on opposite sides of said first lobe, eccentric shaft means rotatably journaled in said side member means, rotary piston means of a Spherical triangular cross-sectional shape rotatably supported by said eccentric shaft means, conduit means at least partially located in said mantle means between said inlet and said outlet means and leading into the interior of said mantle means while forming an angle with the plane passing through said first and second lobes for conveying a gas pressure from an area of higher pressure in said chamber means and leading into a gap formed by said piston means and said mantle means between said inlet and outlet means, each of the flank surfaces of said rotary piston means being provided with a trough-shaped portion, and said conduit means leading into the interior of said mantle means in such a way that the gas jet entering the interior of said mantle means is directed into the respective adjacent trough.

Claim 4

A circular piston internal combustion machine, which includes: mantle means, the inner cross-sectional surface of which has the shape of a two-arc epitrochoid with a first lobe and a second lobe located opposite to said first lobe, said member means associated with said mantle means and together therewith defining incompletely separated chamber means having gas inlet an outlet means on opposite sides of said first lobe, eccentric shaft means rotatably journaled in said side member means, rotary piston means of a Spherical triangular cross-sectional shape rotatably supported by said eccentric shaft means, conduit means at least partially located in said mantle means between said inlet and said outlet means and leading into the interior of said mantle means while forming an angle with the plane passing through said first and second lobes for conveying a gas pressure from an area of higher pressure in said chamber means and leading into a gap formed by said piston means and said mantle means between said inlet and outlet means, each of the flank surfaces of said rotary piston means being provided with a trough-shaped portion, and said conduit means leading into the interior of said mantle means in such a way that the gas jet entering the interior of said mantle means is directed into the respective adjacent trough.

Claim 5

A circular piston internal combustion machine, which includes: mantle means, the inner cross-sectional surface of which has the shape of a two-arc epitrochoid with a first lobe and a second lobe located opposite to said first lobe, said member means associated with said mantle means and together therewith defining incompletely separated chamber means having gas inlet and outlet means on opposite sides of said first lobe, eccentric shaft means rotatably journaled in said side member means, rotary piston means of a spherical triangular cross-sectional shape rotatably supported by said eccentric shaft means, conduit means at least partially located in said mantle means between said inlet and said outlet means and leading into the interior of said mantle means while forming an angle with the plane passing through said first and second lobes for conveying a gas pressure from an area of higher pressure in said chamber means and leading into a gap formed by said piston means and said mantle means between said inlet and outlet means, the mouth of said conduit means which leads to the area of lower pressure in the interior of said mantle means between said inlet And outlet means being spaced by approximately three-fourths of the length of a flank of said piston means from said area of higher pressure.

Claim 6

A circular piston internal combustion machine, which includes: mantle means, the inner cross-sectional surface of which has the shape of a two-arc epitrochoid with a first lobe and a second lobe located opposite to said first lobe, said member means associated with said mantle means and together therewith defining incompletely separated chamber means having gas inlet and outlet means on opposite sides of said first lobe, eccentric shaft means rotatably journaled in said side member means, rotary piston means of a spherical triangular cross-sectional shape rotatably supported by said eccentric shaft means, conduit means at least partially located in said mantle means between said inlet and said outlet means and leading into the interior of said mantle means while forming an angle with the plane passing through said first and second lobes for conveying a gas pressure from an area of higher pressure in said chamber means and leading into a gap formed by said piston means and said mantle means between said inlet and outlet means, the mouth of said conduit means which leads to the area of lower pressure in the interior of said mantle means between said inlet And outlet means being spaced by approximately three-fourths of the length of a flank of said piston means from said area of higher pressure.

Claim 7

A circular piston internal combustion machine, which includes: mantle means, the inner cross-sectional surface of which has the shape of a two-arc epitrochoid with a first lobe and a second lobe located opposite to said first lobe, side member means associated with said mantle means and together therewith defining incompletely separated chamber means having gas inlet and outlet means on opposite sides of said first lobe, eccentric shaft means rotatably journaled in said side member means, rotary piston means of a spherical triangular cross-sectional shape rotatably supported by said eccentric shaft means, conduit means at least partially located in said mantle means between said inlet and said outlet means and leading into the interior of said mantle means while forming an angle with the plane passing through said first and second lobes for conveying a gas pressure from an area of higher pressure in said chamber means and leading into a gap formed by said piston means and said mantle means between said inlet and outlet means, said mantle means with said side member means and said piston means forming at least two units, and said conduit means leading from an area of higher pressure in one unit to an area of lower pressure in the other unit.

Claim 8

A circular piston internal combustion machine, which includes: mantle means, the inner cross-sectional surface of which has the shape of a two-arc epitrochoid with a first lobe and a second lobe located opposite to said first lobe, side member means associated with said mantle means and together therewith defining incompletely separated chamber means having gas inlet and outlet means on opposite sides of said first lobe, eccentric shaft means rotatably journaled in said side member means, rotary piston means of a spherical triangular cross-sectional shape rotatably supported by said eccentric shaft means, conduit means at least partially located in said mantle means between said inlet and said outlet means and leading into the interior of said mantle means while forming an angle with the plane passing through said first and second lobes for conveying a gas pressure from an area of higher pressure in said chamber means and leading into a gap formed by said piston means and said mantle means between said inlet and outlet means, said mantle means with said side member means and said piston means forming at least two units, and said conduit means leading from an area of higher pressure in one unit to an area of lower pressure in the other unit.

Claim 9

A machine according to claim 4, in which that portion in one unit of the conduit means which directly communicates with the area of higher pressure is spaced from that portion of the conduit means leading to the area of lower pressure in the other unit is spaced from the last mentioned area by less than three-fourths of the length of a piston flank in said last mentioned unit.

Claim 10

A circular piston internal combustion machine, which includes: mantle means, the inner cross-sectional surface of which has the shape of a two-arc epitrochoid with a first lobe and a second lobe located opposite to said first lobe, side member means associated with said mantle means and together therewith defining incompletely separated chamber means having gas inlet and outlet means on opposite sides of said first lobe, eccentric shaft means rotatably journaled in said side member means, rotary piston means of a spherical triangular cross-sectional shape rotatably supported by said eccentric shaft means, conduit means at least partially located in said mantle means between said inlet and said outlet means and leading into the interior of said mantle means while forming an angle with the plane passing through said first and second lobes for conveying a gas pressure from an area of higher pressure in said chamber means and leading into a gap formed by said piston means and said mantle means between said inlet and outlet means, and valve means interposed in said conduit means and adjustable to control the flow of gas therethrough.

Claim 11

A circular piston internal combustion machine, which includes: mantle means, the inner cross-sectional surface of which has the shape of a two-arc epitrochoid with a first lobe and a second lobe located opposite to said first lobe, side member means associated with said mantle means and together therewith defining incompletely separated chamber means having gas inlet and outlet means on opposite sides of said first lobe, eccentric shaft means rotatably journaled in said side member means, rotary piston means of a spherical triangular cross-sectional shape rotatably supported by said eccentric shaft means, conduit means at least partially located in said mantle means between said inlet and said outlet means and leading into the interior of said mantle means while forming an angle with the plane passing through said first and second lobes for conveying a gas pressure from an area of higher pressure in said chamber means and leading into a gap formed by said piston means and said mantle means between said inlet and outlet means, and valve means interposed in said conduit means and adjustable to control the flow of gas therethrough.