Abstract: The invention relates to a modular construction system for a piston machine (100), comprising at least two separate housing parts capable of being joined together into a housing (1) of the piston machine (100), a piston (15) which is configured as a swivel element, is pivotable and is able to be arranged in the housing (1), and a housing cover (7) for covering the housing (1). The piston machine (100) is in particular configured as a modular construction system, the components of which are formed by multiple segments and joined together in a horizontal and a vertical direction in each case. The invention further relates to a piston machine (100) produced using the modular construction system and to a method for producing a piston machine (100).

Abstract: The invention relates to a modular construction system for a piston machine (100), comprising at least two separate housing parts capable of being joined together into a housing (1) of the piston machine (100), a piston (15) which is configured as a swivel element, is pivotable and is able to be arranged in the housing (1), and a housing cover (7) for covering the housing (1). The piston machine (100) is in particular configured as a modular construction system, the components of which are formed by multiple segments and joined together in a horizontal and a vertical direction in each case. The invention further relates to a piston machine (100) produced using the modular construction system and to a method for producing a piston machine (100).

Abstract: The invention relates to a piston machine which comprises: a housing with a chamber with has a substantially circle sector-shaped cross-section; a pivotal piston which is designed as a pivoting element, is arranged in the housing and comprises a first working surface, wherein the housing and the piston define at least one first variable working chamber; a drive or output which is connected to the piston; and an outlet which is arranged in the working chamber for discharging a working fluid. The housing has a cooling opening in at least one housing wall, said opening leading to the chamber at least for convectively cooling a piston side opposite the first working surface by means of a coolant.

Abstract: The invention relates to a piston machine which comprises: a housing with a chamber with has a substantially circle sector-shaped cross-section; a pivotal piston which is designed as a pivoting element, is arranged in the housing and comprises a first working surface, wherein the housing and the piston define at least one first variable working chamber; a drive or output which is connected to the piston; and an outlet which is arranged in the working chamber for discharging a working fluid. The housing has a cooling opening in at least one housing wall, said opening leading to the chamber at least for convectively cooling a piston side opposite the first working surface by means of a coolant.

Abstract: The invention relates to a piston machine comprising two (or more) housing parts (3a, 3b), which are each in the shape a circular cylinder segment, but which are joined to each other in such a way that the housing parts are rotated 180° with respect to each other, and which enclose a common cavity and each have a dual piston plate (1, 2), wherein the dual piston plates are associated with the respective housing part and driven separately and synchronously in opposite directions. The dual piston plates, together with the respective adjacent angled side wall (15, 16) of the housing part, the side wall having inlet and outlet valves (18a/b, 19a/b), define two outer working chambers (A1 and A2) and one (or more) inner working chambers (A3) are defined between the dual piston plates (1, 2), the one or more inner working chambers having inlet and outlet valves (18c, 19c) formed in a rear housing wall (13) at the height of an imaginary separating line X between the housing parts (3a, 3b).

Abstract: A piston engine including casing (1, 3, 4, 5) and a parallel-rotating piston (8). The piston is supported on the crank pin (7) of a crankshaft (2) and is secured in rotation relative to said pin (7), piston (8) is fitted with an outer wall that, when viewed in a plane perpendicular to the crankshaft axis, is partly convex (9) and partly concave (10). The outer wall is opposite a casing peripheral wall that, when viewed in the perpendicular plane, is partly concave (11) and partly convex (12). The piston outer wall and casing peripheral wall subtend a chamber (13) that opens, closes and changes its enclosed volume during parallel rotation. The chamber (13) is bounded by axially spaced side walls (14) whereby, one of the side walls (14) is affixed to the piston (8) and overlaps in sliding manner a boundary wall (3′) which is perpendicular to the axis and which is part of the compartment (3) that subtends the peripheral wall (11, 12) and is part of the casing (1, 3, 4, 5).

Abstract: A rotary piston machine including a rotary piston (6), which is mounted oil the crank pin (5, 5′) of a crankshaft accommodated in a stationary housing (1) and held by a holding device (8, 9, 10, 11) in a manner that prevents significant change of the angular position of the rotary piston relative to the housing. The rotary piston forms, on its periphery, at least one pair of concave and convex surfaces (12, 13; 12′, 13′) that engage with an associated pair of convex and concave surfaces (14, 15; 14′, 15′) located on a peripheral surface (3) of the housing surrounding the rotary piston. The pairs of concave and convex surfaces engage one another over the angular range of the rotation of the crankshaft while forming a chamber and while altering the size of the chamber over this angular range.

Abstract: A piston machine usable as an expansion engine, suction pump or compressor for a compressible medium has a housing containing a working space with two parallel walls and an interconnecting peripheral wall perpendicular to the parallel walls, the peripheral wall having a first chamber surface. A piston has a second chamber surface cooperating with the first chamber surface to form a chamber of variable volume. Two identical crankshafts rotatably mounted in the housing have crank pins rotatable in and supporting the piston, the crankshafts being coupled together for angular synchronous rotation. A first sealing element is mounted on the piston and a second sealing element is mounted on the peripheral wall. Each of the first and second chamber surfaces is formed as a sliding surface to slidingly engage the sealing element of the other of said chamber surfaces during piston rotation.

Abstract: The invention concerns a piston internal-combustion engine with separate compression (K) and expansion (E) chambers and a compressed-gas transfer device (7) which feeds compressed gas from the compression chambers to the expansion chambers at the beginning of ignition. A control unit (7) is provided which, depending on the mode of operation, feeds the compressed gas either to the expansion chambers or to a pressure accumulator (10) from which the expansion chambers can also be operated in a pure compressed-air mode.