Abstract:
A rotary combustion engine includes a peripheral housing, side housing plates, a piston, and an eccentric shaft, where the triangular piston mounted on the eccentric shaft rotates between the side plates around an epitrochoidal orbit with a long and short axis inside the housing to form three working spaces, where the gas exchange is controlled by an intake port and an exhaust port. Fuel is supplied by an injection nozzle located on the short axis of the peripheral housing, and combustion is initiated by a spark plug located shortly after the injection nozzle in the housing relative to the direction of rotation of the piston. Nozzle bores in the injection nozzle are designed in such a way that, in conjunction with a multi-fuel injection system, they guarantee reliable ignition of the fuel during each cycle.
Abstract:
A rotary piston internal combustion engine has a casing including a central portion and two side portions. The central portion has a trochoidal inner mantle surface. An eccentric shaft extends through the casing and has an eccentric portion with a friction bearing. Main bearings for supporting the eccentric shaft in the casing are provided. A rotary piston, triangular in cross-section and having an interior chamber and axial edges with sealing members, is mounted on the friction bearing of the eccentric portion. The sealing members remain at all times in contact with the trochoidal inner mantle surface during rotation. A lubricating system for lubricating and cooling the rotary piston includes an oil cooler, a closed oil reservoir, and an oil filter. The lubricating system has a first pump and substantially axially extending channels provided in at least one of the side portions in the vicinity of the eccentric shaft. The first pump removes oil from the rotary piston and its interior chamber through the channels into the closed oil reservoir. A second pump is provided for returning oil from the closed oil reservoir through oil cooler and oil filter to the main bearings and the friction bearing.
Abstract:
An external-axial rotary piston blower with two-arm or two-lobe pistons having cylindrical inner and outer advance surfaces and transitional surfaces between the advance surfaces, which extend from inner advance surfaces defining a partial circle or arc of 90.degree. into smooth, level or even inner transitional surfaces at right angles to the tangent to this partial circle or arc as far as to a curve or rounding-off, over which the pistons roll-off or move and from this rounding-off or curve into smooth, level or even outer transitional surfaces, which are inclined to the longitudinal axis of the piston at an angle of 120.degree., whereby the outer edges of the inner transitional surfaces of both of the two pistons then contact or engage, when these transitional surfaces are located or lie in a plane with the positioning of the pistons of 45.degree. to the longitudinal housing axis.
Abstract:
An axial sealing system of a rotary piston engine with a triangular piston and a dual-arc casing runway surfacing with which a seal body arranged in axial groove or groove bore cooperating sealingly after each axial sealing strip at a preceding end thereof for sealing therewith and the preceding sealing plug under gas pressure from the working or operating chamber. The sealing body is a second sealing plug cut into by the sealing strip and the first sealing plug. Also this can be a sealing strip segment having a configuration that fits with respect to the cutout of the sealing strip and the first sealing plug.
Abstract:
A radial seal for a rotary piston engine having a trochoidal-shaped casing inner surfacing and a multi-corner piston with which sealing strips are arranged in radial grooves in the corners of the piston. The sealing strips engage under pressure of the operating chambers against the casing inner peripheral surfacing and respectively against the lower-pressure-side groove wall. The sealing strips have perforations or openings between the sealing surfaces coming into engagement along the groove walls. Filler pieces are inserted or installed with nominal clearance in the perforations or perforations in the sealing strip. These filler pieces are narrower in peripheral direction in the dimensioning or measurement thereof compared with the sealing strip. A spring holds the filler pieces in continuous engagement against an upper part of the sealing strip. Groove clearance of the sealing strip amounts to a value in a range of 0.04 to 0.08 mm and the groove clearance of the filler pieces amounts to a value in a range of 0.1 to 0.2 mm.
Abstract:
A housing mantle or casing produced in a compact construction for a rotary piston engine with a trochoidal-shaped dual-arc mantle runway or raceway and sealing strips arranged in corners of a triangular piston rotating upon an eccentric of an eccentric shaft so that the sealing strips slide along the mantle runway. A layer of steel forming the mantle runway and an outer layer of aluminum alloy is cast around the layer of steel. The layer or band of steel forming the runway has openings with radially outwardly bent-open edges which are cast of filled-out with cast metal forming the outer layer as far as to a plane which coincides with a base plane of the steel layer or band forming the mantle runway.
Abstract:
A discharge valve which includes a housing provided with a plurality of discharge holes, a plurality of seat portions formed on an inner circumferential face of the housing an a portion surrounding the discharge holes, a valve member disposed within the housing and provided with a plurality of valve portions, a valve support member disposed within the housing for supporting the valve member and a projecting member provided between the discharge holes on the inner circumferential face of the housing.
Abstract:
A rotary piston engine having fuel-air inlets controlled by the piston and which supply a stratified charge to the inlet chamber of the engine. The inlets comprise first inlets which are opened first and which supply a lean mixture along the sides of the cavity in which the piston moves and second inlets which supply a rich material to the central region of the cavity. Ignition of the rich mixture promotes complete combustion with a minimum of undesired combustion products, such as oxides of nitrogen, carbon monoxide, and the like.
Abstract:
The invention relates to a rotary piston engine, in particular a rotary engine of trochoidal design, with a side disk (4) on the exhaust side and a rotary piston (6) with at least of one, and preferably three, through-flow openings (6) through which the mixture can flow axially, wherein the side disk (4) on the exhaust side has a side exhaust port (43) and the at least of one through-flow opening (60) has an asymmetric internal contour (600) at least on its exhaust side, so that when the rotary piston (6) passes over the side exhaust port (43) the said side exhaust port (43) is not in fluid communication with an internal area of the through-flow opening (60). The invention further relates to a rotary piston (6) for a rotary piston engine.
Abstract:
A rotary combustion engine includes a peripheral housing, a front housing plate, a rear housing plate, a piston, and an eccentric shaft, where the piston rotates to form three working spaces separated from each other by the tips of the piston. Shaft seals and piston seals seal off the oil-carrying interior space of the internal combustion engine, and the piston is sealed off against the front and rear housing plates by arcuate strips, which are bounded radially on the inside by an envelope curve. The gas forming in the working space during the combustion phase is under high pressure. Some of this gas leaks around the arcuate strips and flows inward along the flat surfaces of the front and rear plates by way of ring-shaped channels in the piston, thus arriving in recessed areas inside the envelope curves, from which it is then escapes through vent channels.