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Patent Searching and Data


Matches 651 - 700 out of 5,434

Document Document Title
WO/1992/015777A1
[Purpose] Now that there is a limitation to transforming reciprocating movements into rotary ones, although internal combustion engines have been developed centering around reciprocating engines, an engine, wherein energy is taken out as...  
WO/1992/014909A1
A rotary piston internal combustion engine having a structure wherein a curve determining a side surface profile of a cylindrical hollow of a housing is set to a synthetic trochoid or parallel synthetic trochoid as a locus of a creation ...  
WO/1992/003640A1
One-stroke engine, its modular construction and utilization in various vehicules. Said engine has two useful explosions per crankshaft rotation. Its construction, disclosed in the description, includes a multiform piston and the connecti...  
WO/1992/001148A1
This patent application - worldwide - is for an induction system for internal combustion engines without valves, with the following characteristics and performances: improving efficiency and power output; providing total freedom in inlet...  
WO/1991/019088A1
A rotary piston internal combustion engine has two rotary piston systems (A, B) which are mounted with their axes parallel and which engage in each other when counterrotating. The rotary piston systems have annular paths (10, 11) in a co...  
WO/1991/018193A1
A rotary engine having an oval rotor (12) centrally mounted in a cylindrical chamber (11). Cylindrical chamber (11) is partitioned into a number of combustion chambers (40-47) by sliding vanes (48-53B). Rotor (12) is mounted to a partial...  
WO/1991/015663A1
A two stroke double acting oscillating piston quadratic internal combustion engine or machine comprising a plurality of double acting, rectangular faced, arc shaped oscillator pistons (1), symmetrically spaced apart, and secured to an os...  
WO/1991/015659A1
Comprising a casing (H) in which four pistons are housed and mounted onto co-axial shafts (6b, 7a) for concentric rotation within an annular chamber (C), the shafts being separately movable via levers (6, 7) and pivots (6a, 7b), and whic...  
WO/1991/014859A1
This rotating machine which may be used as a heat engine (M) or a compressor (C) or both combined comprises a hollow annular stator (4) in which can rotate a rotor (1) fitted with at least one vane (3). A rotary reaction disc (7) passes ...  
WO/1991/010820A1
The invention relates to a rotary piston internal combustion engine which operates on the cat-and-mouse principle. In machines of this type, the working chambers (30) of the rotor (18), which rotates at constant speed inside the housing ...  
WO/1991/010811A1
In rotary-piston internal-combustion engines which work by the cat-and-mouse principale, the work spaces (30) inside the rotor (18) rotating at uniform speed in the housing (10) must be sealed off from each other and from the housing (10...  
WO/1991/010052A1
An internal combustion engine includes a compressor and an expander of the type having a pair of multilobed, intermeshing rotors (12, 22, 13, 23) rotatably installed in a casing (1), and a combustion chamber (30) communicating with said ...  
WO/1991/006747A1
The invention relates to an internal combustion engine having separate rotary compression and expansion sections and a combustion chamber (16) having valved inlet and outlet ports (21, 22) communicating with the compression and expansion...  
WO/1991/002888A1
Rotating internal combustion engine which comprises three rotors (A, B, C), a central rotor (C) and another two (A, B), one on each side, the central rotor is cylindrical, containing on its periphery teeth (2) which fit in the respective...  
WO/1991/002145A1
An engine (10) has a pair of intermeshing rotors (12) and (14). The rotor (12) has intake/compression vanes (18), and the rotor (14) has expansion/exhaust vanes (22). In operation of the engine (10), the intake/compression vanes (18) of ...  
WO/1990/008886A1
The preferred embodiment of the present invention is in the form of a rotary compression/combustion assembly (10) adaptable to be utilized as an internal combustion engine, a fluid pump or as fluid compressor device. The assembly (10) op...  
WO/1990/008879A1
In rotary piston internal combustion engines which operate on the cat-and-mouse principle, the oscillating movement of the piston (32) is transmitted by connecting rods (22) to crankshafts (24) and gears (27). The gears (27) intermesh wi...  
WO/1990/007632A1
A power conversion machine comprising a rotor assembly having a first rotor part (124) with a first pair of pistons (137, 138) and a second rotor part (125) with a second pair of pistons (135, 136) which are rockable back and forth in re...  
WO/1990/002259A1
A rotary piston engine comprising two segregated body chambers of compression (10) and expansion (20), and one separable combustion chamber (31), carrying out air suction and compression, combustion resultant expansion and exhaust, and f...  
WO/1989/009874A1
An internal combustion engine of the rotary type in which a pair of axially spaced combustion chambers (24a, 26a) are provided and a common ratchet or control mechanism (16) is positioned between the spaced combustion chambers. A pair of...  
WO/1989/009871A1
A two-stroke rotating piston internal combustion engine has a cylindrical engine housing (1) which accommodates a single rotating piston (6). Because of its very small rotary oscillation hub, the rotating piston can execute an oscillatin...  
WO/1989/002517A1
The engine comprises a disk-shaped rotor (1) mounted on supports (3) in a casing (4) having a cylindrical and end-face walls (6, 7, 8). The end-face walls (7, 8) are provided with sector-shaped protrusions which form, together with the e...  
WO/1988/010357A1
The present invention proposes that rockets be replaced by round missiles stabilized by rotating wings (25 and 48) and propelled by piston- and mass-type (52) propulsion units, the consumption of which is 1000 times less than that of the...  
WO/1988/008921A1
An internal combustion engine characterized by comprising: a stator (1), a rotor (7) housed inside said stator (1) and provided with a drive shaft (23), at least one toroidal cylinder (9, 9') housed inside said rotor (7) and having its a...  
WO/1988/007623A1
Rotary piston machine, particularly a supercharged rotary piston engine, provided with a cylinder with inlet and outlet channels and a rotating piston disposed in said cylinder. Said rotating piston is connected to the main shaft for the...  
WO/1988/005120A1
A rotary piston machine which may operate as an internal combustion engine, steam engine, compressor or pump. The machine comprises a housing (5) having a cylindrical cavity with circumferentially disposed compression volume recesses (7 ...  
WO/1988/001342A1
A structure of an engine using a cylinder block having a cros-section forming a predetermined curved surface, and a piston having a curved surface identical with the curved surface of the cylinder block, in which engine the arcuate recip...  
WO/1987/007326A1
A rotary internal combustion engine in which radially mounted pistons (43) are used to provide compression and ignition, and expansion occurs in a separate rotor (20) having hollow vanes (10) which are driven during the expansion portion...  
WO/1987/004495A1
A mechanism comprising a chamber (7) defined by a spherical or part spherical internal surface, and a disk member (9) rotatable ina fixed plane diametral to the said internal surface and in sealing relation therewith, at least one vane (...  
WO/1987/003331A1
There is disclosed an alternating rotary combustion engine wherein the cylinder is divided into two half cylinders: the lower half cylinder is a crank case (1); the upper half cylinder (2) has two working chambers, two pistons and the ce...  
WO/1987/001414A1
Rotary-type heat engine having the combustion chamber (3) separated from the expansion chamber (4), using the structure of pumping chamber in circumferential piston pump, so that constant-volume combustion process and constant-pressure e...  
WO/1987/000573A1
A rotary internal combustion engine has two vane-bearing members (14, 20) which rotate in a common cylinder with varying relative velocities so that chambers defined between the vanes (10, 12, 22, 24) vary in volume. In order to vary the...  
WO/1986/006785A1
The centre-axle circular piston machine consists of a drum (2) which rotates centrally on an axle with at least one separating wing arranged radially on the inside, and at least one piston wing arranged on a hollow axis sliding around th...  
WO/1986/006791A1
A rotary piston internal combustion engine with two counter-rotating pistons (14, 15) located on the same axis and engaging with one another. One of the pistons acts as a compression or charging piston and the other as an expansion or pr...  
WO/1986/006437A1
Rotary engines utilize the Brayton cycle. The cycle of the engines includes the four strokes of intake, compression, expansion and exhaust. An open-cycle version (Figure 2) uses air as the primary working fluid while closed-cycle version...  
WO/1986/005841A1
A rotating piston internal combustion engine with a housing (2), a rotor (3) and a double sleeve shaft (4). An uneven number of piston blades (5-9) is mounted on the rotor (3). In the area between adjacent piston blades, the rotor (3) ha...  
WO/1986/005545A1
The device for driving a drive shaft (21) by means of a piston and an intermediary driving mechanism is characterized by a piston consisting of two parts (1, 2) which form together a combustion chamber (43). Both piston parts (1, 2) rota...  
WO/1986/004642A1
A rotary engine, comprising a housing (1) containing a main rotor (4) and a supplementary rotor (8). The rotors are provided with cams (6, 10) which can be brought into intermeshing engagement with one another so that a continuous rotati...  
WO/1986/002698A1
In a rotary internal combustion engine with a rotor housing (1, 2, 3, 19, 20) in which a rotor (4) is eccentrically supported, preferably three radial bores (11) at mutual equal angular distance are provided. In each of the bores (11) a ...  
WO/1986/001255A1
The engine comprises a rotor assembly, in which four pistons (A, B, C and D) (Figs. 1 and 2) are mounted for concentric rotation within an engine housing (H). The four pistons are secured in diametrically opposite pairs onto hubs (CA and...  
WO/1986/000957A1
A rotary positive displacement machine, and more particularly an internal combustion engine in one of its simplest of many forms, has a housing (1) with inner walls closely surrounding four similar rotors (2, 3, 4 and 5) arranged in a sy...  
WO/1985/003549A1
A reversible rotary one-stroke internal combustion engine comprising a stator which defines a cylindrical chamber (43), a drive shaft (1) extending coaxially through said chamber, a rotor (2) comprising a cylindrical hub mounted coaxiall...  
WO/1985/001776A1
A rotary-piston, positive displacement machine operable as a compressor or combustion engine. The machine comprises a cylindrical enclosing jacket (12); a rotor (11) with apexes (15, 16) which sealingly engage the cylindrical inner wall ...  
WO/1984/004943A1
In a rotary machine (10) including a rotor (50) and a bore surface (37) with which the rotor interacts to cyclically define a fluid chamber (60) during rotation, a variable member (1002) defining part of the bore surface is movable relat...  
WO/1984/003124A1
A stator enclosure bounded by two side plates (12) confines three fixed blocks (11) and rotor components comprising an internal ring (14) eccentrically disposed about a centrally positioned power delivery shaft (15) which emerges from sa...  
WO/1984/000997A1
An internal combustion engine having a generally spherical cavity (14) within a rigid body (12), and the cavity (14) being divided into variable-sized compartments by a generally disk-shaped rotor (20) which is mounted for rotation about...  
WO/1984/000993A1
Rotary machines (10) of the type having a fluid chamber (60) of changing volume, e.g. as in an engine or pump, in which two rotors (50, 52) rotate in the same direction; a cylindrical surface (CL) of the first rotor of substantial arcuat...  
WO/1983/001276A1
A compound engine type power plant with high thermal efficiency and high power output including a compressor (10), a positive displacement combustor (12) for adding heat to a compressed working fluid at constant volume, and an expander (...  
WO/1982/003250A1
The rotary piston machine comprises a stator (1) with a substantially oval internal profile in which a rotor (2) may rotate coaxially to the stator and provided with blades (3) which may slide in the radial direction, the assembly being ...  
WO1982000176A1
A pair of toroidal cylinders (2, 4) are arranged in pairs with their transverse axes in colinear alignment. Each toroidal cylinder includes at least one piston (6A-6D). The pistons within adjacent toroidal combustion chambers rotate in o...  

Matches 651 - 700 out of 5,434