Cam Engine
OwnerBoyan Bahnevinventor
Life of this patent
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Abstract
The invention relates to a cam engine used in different field of the mechanical engineering, as internal-combustion engines, compressors, pumps etc. The cam engine comprises cylinders (26) with pistons (25), cylindrical tubular 3D cam (20) having a cam groove on the inner cylindrical surface and at least two asynchronously moving followers (1a and 1b) with arms (37) having main and additional rollers (3, 5).
Claims23
(canceled)
A cam engine according to claim 24, wherein the cam groove has cam profiles (15a, 15b) with top and bottom dead centers (88, 89) formed on the interior of tubular 3D cam (20) and wherein the cam groove is made so that, at the top and bottom dead centers (88, 89), the distance between the cam profiles (15a. 15b) of the cam groove of the tubular 3D cam (20) in the cross-section is the greatest, and the distance in the cross-section between the cam profiles (15a, 15b) of the cam groove of the tubular 3D cam (20) between the each two neighboring dead centers (88, 89) is the smallest, so that the movement (17) of the additional rollers (5) along the axes of the main rollers (3) is reduced the most.
The cam engine according to claim 24, wherein the cam groove is formed so that along the lines of rolling of the additional rollers (5) there are formed narrower grooves (32) having the greatest depth at the top and bottom dead centers (88, 89), and minimum depth between the two dead centers (88, 89), so that the movement (17) of the additional rollers (5) along the axes of the main rollers (3) is reduced the most.
Cam engine according to claim 24, wherein the cam groove is made so that along the lines of rolling of the additional rollers (5) there are narrower convex paths (90) formed having the greatest height between two neighboring dead centers (88, 89), and their height at top and bottom dead centers (88, 89) is minimum, so that the movement (17) of the additional rollers (5) along the axes of the main rollers (3) is reduced the most.
(canceled)
Cam engine according to claim 24, wherein the tubular 3D cam (20) comprises two coaxial cam bushings (16a, 16b), each having a cam profile (15a, 15b) on one side, and the two coaxial cam bushings (16a, 16b) are situated at a distance one from another with their ends facing each other so that the cam profile of one of the two coaxial cam bushings opposes the cam profile of the other coaxial cam bushing of the two coaxial cam bushings, wherein said cam engine further comprises at least two guiding columns (27) for the reciprocating linear motion of each piston (25), which two guiding columns (27) are parallel and at an equal distance from the axis of the tubular 3D cam (20).
Cam engine according to claim 24, wherein said cam groove has cam profiles (15a, 15b) formed on the interior of said tubular 3D cam (20) so that a curve (33) of the law of motion of the followers (1a, 1b), when following said cam profiles (15a, 15b), is a function of the angle of rotation of the tubular 3D cam (20) and wherein said cam profiles (15a, 15b) have consecutively alternating ascending and descending sections (91, 92) that define an equal number of convexities and concavities (93, 94), the total number of which convexities and concavities is equal to or a multiple of the sum of the number of the arms (37) of the followers (1a, 1b) and which function is continuous at least up to its second derivative within one complete 360° rotation of the tubular 3D cam (20), including both end points (95);
- and which function is symmetrical for each adjacent ascending and descending sections (91, 92) toward a line (96) passing through a point of theft junction (97) and the line (96) is perpendicular to a tangent (98) to the curve (33) at the junction (97).
8-10. (canceled)
Cam engine according to claim 24, further comprising an electric rotor (60) rigidly connected to the tubular 3D cam (20) and a stator (61) rigidly connected to the housing (31) of the engine thereby forming, in combination, a piston engine and an electric generator or motor.
(canceled)
Cam engine according to claim 24, wherein said cam engine also comprises means for delivery and discharge of working fluid (49a, 49b).
Cam engine according to claim 24, wherein the main and additional rollers (3, 5) are external bearing rings of composite bearings (76) including multiple bearing rings (63) with different diameters, situated concentrically to each other, and the connection between them is sliding or rolling bodies (64).
Compressor, comprising a cam engine according to claim 24.
Pump, comprising a cam engine according to claim 24.
Motor, comprising a cam engine according to claim 24 and wherein said motor further comprises at least one kinematic chain having a 2D cam (52) connected to the tubular 3D cam (20);
- at least one intake or exhaust valve (49a, 49b) located in a cylinder head (57);
- a rocker (48) connected by means of cylindrical joint (56) to a static component of the motor, and, adjacent to the rocker (48), one arm (50), through which rocker (48) is in contact with the 2D cam (52), and at least one other arm (53) contacting an intake or exhaust valve (49a, 49b).
Motor according to claim, further comprising an 17 operating cylinder (26b) functioning as a heat engine, and one opposed cylinder (26a) functioning as a compressor or a pump.
A cam engine, comprising:
- (a) a housing (21, 22, and 31);
- (b) at least one cylinder (26) carried in said housing;
- (c) at least one piston (25) moving reciprocally within said cylinder (26);
- (d) a tubular 3D cam (20) having a cam groove formed along the internal surface of said tubular 3D cam, and wherein said cam groove has a periodically-changing concave cross-section so that the width of the cross-section of said cam groove decreases between each neighboring dead center (88, 89) and the bottom end of said cam groove is located distally with respect to the cylindrical axis of said tubular 3D cam (20);
- and
- (e) at least two asynchronously moving followers (1a, 1b), positioned opposite each other, wherein each follower of said at least two followers (1a, 1b) includes at least two arms (37) and one piston of said at least one piston (25) is connected to one follower of said at least two followers (1a, 1b), said at least two arms (37) being positioned at an angle with respect to each other, and
- wherein each arm of said at least two arms (37) has a free end carrying at least one main roller (3) mounted on a tubular-shaped main journal (2) and wherein said main journal (2) also includes a cylindrical plunger (6) which cylindrical plunger (6) carries an additional bearing journal (4) with an additional roller (5) and the cylindrical plunger (6) together with additional bearing journal (4) and additional roller (5) performs back and forth movement (17) along the axis of said tubular-shaped main journal (2), so that said at least one main roller (3) and said additional roller (5) remain in contact the cam groove,
- wherein said the cylindrical plunger (6) together with additional bearing journal (4) and additional roller (5) performs rotation (18) around the axis of the tubular-shaped main journal (2) so that the additional roller (5) self-adjusts in order to achieve rolling without sliding, and
- wherein said main journal (2) contains
- positioning nuts (14) for adjusting position of said additional roller (5), and
- limiting elements (9 or 43) to limit the movement (17) of the additional roller (5) along the axis of the tubular-shaped main journal (2).
A cam engine, comprising:
- (a) a housing (21, 22, and 31);
- (b) at least one cylinder (26) carried in said housing;
- (c) at least one piston (25) moving reciprocally within said cylinder (26);
- (d) at least one balancer with mass equal to the piston (25);
- (e) a tubular 3D cam (20) having a cam groove formed along the internal surface of said tubular 3D cam, and wherein said cam groove has a periodically-changing concave cross-section so that the width of the cross-section of said cam groove decreases between each neighboring dead center (88, 89) and the bottom end of said cam groove is located distally with respect to the cylindrical axis of said tubular 3D cam (20);
- (f) at least two asynchronously moving followers (1a, 1b), positioned opposite each other, wherein each follower of said at least two followers (1a, 1b) includes at least two arms (37) and one piston of said at least one piston (25) or one balancer is connected to one follower of said at least two followers (1a, 1b), said at least two arms (37) being positioned at an angle with respect to each other, and
- wherein each arm of said at least two arms (37) has a free end carrying at least one main roller (3) mounted on a tubular-shaped main journal (2) and wherein said main journal (2) also includes a cylindrical plunger (6) which cylindrical plunger (6) carries an additional bearing journal (4) with an additional roller (5) and the cylindrical plunger (6) together with additional bearing journal (4) and additional roller (5) performs back and forth movement (17) along the axis of said tubular-shaped main journal (2), so that said at least one main roller (3) and said additional roller (5) remain in contact the cam groove,
- wherein said the cylindrical plunger (6) together with additional bearing journal (4) and additional roller (5) performs rotation (18) around the axis of the tubular-shaped main journal (2) so that the additional roller (5) self-adjusts in order to achieve rolling without sliding, and
- wherein said main journal (2) contains
- positioning nuts (14) for adjusting position of said additional roller (5), and
- limiting elements (9 or 43) to limit the movement (17) of the additional roller (5) along the axis of the tubular-shaped main journal (2).
A cam engine, comprising:
- (a) a housing (21, 22, and 31);
- (b) at least one cylinder (26) carried in said housing;
- (c) at least two pistons (25) moving reciprocally within said cylinders (26) or at least one piston (25) moving reciprocally within said cylinder (26) and at least one balancer with mass equal to the piston (25);
- (d) a tubular 3D cam (20) having a cam groove formed along the internal surface of said tubular 3D cam, and wherein said cam groove has a periodically-changing concave cross-section so that the width of the cross-section of said cam groove decreases between each neighboring dead center (88, 89) and the bottom end of said cam groove is located distally with respect to the cylindrical axis of said tubular 3D cam (20);
- (e) at least two asynchronously moving followers (1a, 1b), positioned opposite each other, wherein each follower of said at least two followers (1a, 1b) includes at least two arms (37) and one piston (25) or one balancer is connected to one follower of said at least two followers (1a, 1b), said at least two arms (37) being positioned at an angle with respect to each other, and
- wherein each arm of said at least two arms (37) has a free end carrying at least one main roller (3) mounted on a tubular-shaped main journal (2) and wherein said main journal (2) also includes a cylindrical plunger (6) which cylindrical plunger (6) carries an additional bearing journal (4) with an additional roller (5) and the cylindrical plunger (6) together with additional bearing journal (4) and additional roller (5) moves (17) forth and back along the axis of said tubular-shaped main journal (2), so that said at least one main roller (3) and said additional roller (5) remain in contact the cam groove,
- wherein said the cylindrical plunger (6) together with additional bearing journal (4) and additional roller (5) rotates (18) around the axis of the tubular-shaped main journal (2) so that the additional roller (5) self-adjusts in order to achieve rolling without sliding, and
- wherein said main journal (2) contains
- positioning nuts (14) for adjusting position of said additional roller (5), and
- limiting elements (9 or 43) to limit the movement (17) of the additional roller (5) along the axis of the tubular-shaped main journal (2).
Dependencies are inferred from the claim text.