Rotating cylinder internal combustion engine
First Claim
1. An internal combustion reciprocating engine, comprising:
- a housing;
a cylinder rotor supported in said housing for rotation about a first axis of rotation, wherein said cylinder rotor includes at least three pairs of cylinders angularly offset relative to each other about the first axis of rotation by 120°
, wherein cylinders of each pair are arranged on opposite sides of the first axis of rotation and have a common axis extending perpendicular to the first axis of rotation, wherein a piston is arranged in each cylinder for displacement therein, and wherein a piston rod rigidly connects the pistons of each of the pairs of cylinders;
a crankshaft supported in said housing for rotation about a second axis of rotation extending parallel to the first axis of rotation and offset relative thereto by a predetermined eccentricity;
eccentric bearings supported on said crank shaft for guiding the piston rods of the pairs of cylinders, wherein said eccentric bearings define third axes of rotation which are offset relative to each other about a second axis of rotation by 120°
, wherein the third axes of rotation extend parallel to the second axis of rotation and are spaced from the second axis of rotation by the predetermined eccentricity, and further wherein each of said eccentric bearings comprises a cam disc fixedly supported on said crankshaft and is received in a bearing opening of a respective piston rod, and wherein the axes of said cam discs define the third axes of rotation;
wherein said cam disc has a bearing radius which is greater than the predetermined eccentricity, and wherein the ratio of the bearing radius to the predetermined eccentricity is approximately between 2.5 and 3.
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Accused Products
Abstract
The reciprocating engine which is particularly useful as an internal combustion engine, comprises a housing (1) with, mounted to rotate about a first axis of rotation (7), a cylinder rotor (5) having three pairs of cylinders (15) which are angularly offset in respect of one another by 120° about the first axis of rotation (7). Disposed in the cylinders (15) are pistons (17) which are rigidly connected to one another in pairs by piston rods (19). Also mounted in the housing is a crank shaft (23) which is rotatable about a second axis of rotation (25) which is axially parallel with and offset by a predetermined eccentricity (e) in relation to the first axis of rotation (7). The piston rods (19) of the pairs of pistons are guided on the crank shaft (23) by means of eccentric bearings (27, 31). The eccentric bearings (27, 31) define in relation to the crank shaft (23) fixed axes of rotation (33) which, are angularly offset by 120° in respect of one another. The cylinder rotor (25) is torsionally rigidly coupled to the crank shaft (23) solely via the piston rods (19) and their eccentric bearings (27, 31) which are fixed in relation to the crank shaft. The fresh air compressed by a waste gas supercharger (37, 39) is fed to the internal combustion engine via a heat exchanger (45) in order to increase the efficiency.
45 Citations
17 Claims
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1. An internal combustion reciprocating engine, comprising:
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a housing; a cylinder rotor supported in said housing for rotation about a first axis of rotation, wherein said cylinder rotor includes at least three pairs of cylinders angularly offset relative to each other about the first axis of rotation by 120°
, wherein cylinders of each pair are arranged on opposite sides of the first axis of rotation and have a common axis extending perpendicular to the first axis of rotation, wherein a piston is arranged in each cylinder for displacement therein, and wherein a piston rod rigidly connects the pistons of each of the pairs of cylinders;a crankshaft supported in said housing for rotation about a second axis of rotation extending parallel to the first axis of rotation and offset relative thereto by a predetermined eccentricity; eccentric bearings supported on said crank shaft for guiding the piston rods of the pairs of cylinders, wherein said eccentric bearings define third axes of rotation which are offset relative to each other about a second axis of rotation by 120°
, wherein the third axes of rotation extend parallel to the second axis of rotation and are spaced from the second axis of rotation by the predetermined eccentricity, and further wherein each of said eccentric bearings comprises a cam disc fixedly supported on said crankshaft and is received in a bearing opening of a respective piston rod, and wherein the axes of said cam discs define the third axes of rotation;wherein said cam disc has a bearing radius which is greater than the predetermined eccentricity, and wherein the ratio of the bearing radius to the predetermined eccentricity is approximately between 2.5 and 3. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An internal combustion reciprocating engine comprising:
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a housing; a cylinder rotor supported in said housing for rotation about a first axis of rotation, wherein said cylinder rotor includes at least three pairs of cylinders angularly offset relative to each other about the first axis of rotation by 120°
, wherein cylinders of each pair are arranged on opposite sides of the first axis of rotation and have a common axis extending perpendicular to the first axis of rotation, wherein a piston is arranged in each cylinder for displacement therein, and further wherein a piston rod rigidly connects pistons of each of the pairs of cylinders;a crankshaft supported in said housing for rotation about a second axis of rotation wherein said crankshaft extends parallel to the first axis of rotation and is offset relative thereto by a predetermined eccentricity; eccentric bearings supported on said crankshaft for guiding piston rods of the pairs of cylinders, wherein said eccentric bearings defined third axes of rotation which are offset relative to each other about a second axis of rotation by 120°
, wherein the third axes of rotation extend parallel to the second axis of rotation, and are spaced from the second axis of rotation by the predetermined eccentricity, wherein each of said eccentric bearings comprises a cam disc fixedly supported on said crankshaft and are received in a bearing opening of a respective piston rod, wherein axes of said circular cam discs define the third axes of rotation;wherein said housing has at least one inlet port and at least one outlet port, wherein each of said cylinders has radially outer and inner chambers, which are defined by the piston, and wherein said radially inner chamber communicates with said inlet and outlet ports during rotation of said cylinder rotor. - View Dependent Claims (15, 16, 17)
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Specification