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公开(公告)号：US11459890B2
公开(公告)日：2022-10-04
申请号：US15930849
申请日：2020-05-13
申请人： UAV Engines Ltd.
摘要： A rotary engine rotor (10) comprising three rotor flanks (12) arranged in a generally equilateral triangle shape, each rotor flank (12) having a leading edge (16) and a trailing edge (17), an elongate lip (21) being provided on the leading edge (16) of at least one of the rotor flanks (12), the elongate lip (21) extending the full axial length of the rotor flank (12). In another aspect, at least one rotor flank (12) comprises a cavity having a leading edge and a trailing edge, and at least a portion of the base of the cavity proximal to a trailing edge thereof is curved outwardly.
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公开(公告)号：US11131194B2
公开(公告)日：2021-09-28
申请号：US16382776
申请日：2019-04-12
摘要： A rotor assembly for a rotary internal combustion engine is provided. The rotor assembly includes a rotor having a radial groove defined radially in a peripheral surface of the rotor. The groove has a depth and an intermediate shoulder at an intermediate depth. The groove has a first width therealong that is narrower than an intermediate width at the shoulder. An apex seal is received in the groove and protrudes from the peripheral face of the rotor. The apex seal is configured to move radially between a first position and a second position outward of the first position. A biasing member biases the apex seal toward the second position. A platform is disposed in the groove between the apex seal and the biasing member and has a width greater than the first width.
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公开(公告)号：US11098587B2
公开(公告)日：2021-08-24
申请号：US16969634
申请日：2019-02-08
申请人： Fuelsave GmbH
发明人： Dirk Hoffmann
IPC分类号： F03C2/00 , F03C4/00 , F04C2/00 , F04C18/00 , F01C1/12 , F01C21/08 , F04C2/12 , F04C15/00 , F01C1/08 , F01C19/02
摘要： A rotary piston engine comprises a housing (10), which forms an interior space (11), and at least two rotary pistons (20, 30), which are arranged in the interior space (11). Formed on the interior space (11) are an inlet opening (13) and an outlet opening (15) to guide a fluid through the interior space (11). The rotary pistons (20, 30) are thereby driven by fluid flowing through. Each rotary piston (20, 30) has on its outer circumference at least two sealing strips (21, 31). According to the invention each rotary piston (20, 30) comprises at least two cavities (27, 37), in each of which a tube (38B) or an elastic solid rod is arranged. The sealing strips (21, 31) project into the cavities and against the tube (38B) received therein or the elastic solid rod. Through the tube (38B) or the rod, the sealing strips (21, 31) are pushed radially outwards.
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公开(公告)号：US11085298B1
公开(公告)日：2021-08-10
申请号：US17111143
申请日：2020-12-03
IPC分类号： F03C2/00 , F03C4/00 , F04C18/00 , F04C2/00 , F01C1/22 , F01C19/04 , F01C19/10 , F02B33/38 , F01C1/12 , F02B53/00 , F01C19/02 , F04C18/12 , F01C11/00
摘要： An internal combustion engine includes one or more pairs of non-meshing, externally timed rotors disposed within a housing in an expander module and a compressor module. Each rotor includes a cylindrical, center main body including a first end, a second end opposite the first end, an elongate portion extending between the ends and a first peripheral surface portion and a second peripheral surface portion and a bore extending through a center of the main body from the first end to the to second end. The rotors each have a groove extending along outer peripheral edge portions of the rotor. A pair of tip seals is disposed in the grooves. A pair of apex seals is disposed on the first peripheral surface portion and the second peripheral surface portion and an axially floating end plate is disposed at an end of the housing.
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公开(公告)号：US20200270991A1
公开(公告)日：2020-08-27
申请号：US15930849
申请日：2020-05-13
申请人： UAV Engines Ltd.
摘要： A rotary engine rotor (10) comprising three rotor flanks (12) arranged in a generally equilateral triangle shape, each rotor flank (12) having a leading edge (16) and a trailing edge (17), an elongate lip (21) being provided on the leading edge (16) of at least one of the rotor flanks (12), the elongate lip (21) extending the full axial length of the rotor flank (12). In another aspect, at least one rotor flank (12) comprises a cavity having a leading edge and a trailing edge, and at least a portion of the base of the cavity proximal to a trailing edge thereof is curved outwardly.
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公开(公告)号：US10400600B2
公开(公告)日：2019-09-03
申请号：US15331569
申请日：2016-10-21
IPC分类号： F01C1/08 , F16C35/06 , F16H57/02 , F16H57/04 , F01C19/02 , F16C35/067 , F16H57/021 , F16H57/029
摘要： A gearmotor assembly includes a housing, a rotatable shaft, a bearing, a retaining member, and a seal. The housing defines a gear chamber configured to contain a lubricant. The bearing rotatably supports the shaft. The bearing is disposed between the housing and the shaft. The retaining member at least in part restricts axial shifting of the bearing. The retaining member presents a plurality of retaining member threads. The housing defines a plurality of housing threads threadably engaging the retaining member threads. The retaining member and the housing cooperatively at least in part define an interface. The interface includes a threaded portion and an additional portion. The threaded portion is cooperatively defined by the retaining member threads and the housing threads. The additional portion is fluidly interconnected to the threaded portion. The seal is disposed along the interface to prevent lubricant escaping the gear chamber past the interface.
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公开(公告)号：US20190195071A1
公开(公告)日：2019-06-27
申请号：US16329806
申请日：2017-09-01
申请人： LONTRA LIMITED
CPC分类号： F01C19/125 , F01C3/025 , F01C19/02 , F01C21/02 , F01C21/04 , F04C2240/20 , F04C2250/20
摘要： A rotary piston and cylinder device (1) comprising a rotor (2), a stator (4) and a rotatable shutter (3), the rotor comprising a piston (5) which extends from the rotor into a working chamber, the rotor and the stator together defining a working chamber, the shutter arranged to extend through the working chamber and forming a partition therein, and the shutter comprising a slot which allows passage of the piston therethrough, a bearing (20) which mounts the rotor relative to the stator, the rotor comprising a formation (12; 30) which extends substantially axially away from the chamber, and the formation being radially outward of the bearing and extending around the axis of rotation, and the formation comprising a surface which at least in part defines a space between the rotor and the stator, and at least part of that space and/or the formation overlaps in an axial direction with the bearing.
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公开(公告)号：US20190078438A1
公开(公告)日：2019-03-14
申请号：US16188802
申请日：2018-11-13
摘要： A first rotor configured to rotate adjacent to a second rotor is disclosed. The second rotor includes a circular main body with a first axis of rotation and a vane extending radially from the main body. The first rotor includes a first curved surface that corresponds to a curve swept at a constant radius about a second axis of rotation, a second curved surface that corresponds to a curve swept by a leading edge of the vane when the second rotor is simultaneously rotated about the first axis of rotation and the second axis of rotation, a third curved surface that corresponds to a curve swept by a trailing edge of the vane when the second rotor is simultaneously rotated about the first axis of rotation and the second axis of rotation, and a vane-receiving groove disposed between the second curved surface and the third curved surface.
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公开(公告)号：US20190048720A1
公开(公告)日：2019-02-14
申请号：US16078958
申请日：2017-02-23
申请人： Vengeance Power Inc.
摘要： An improvement to an expander is disclosed. The expander is of the type that has vanes that extend and retract from a rotor body during rotation and create chambers that increase and decrease in size. The improvement comprises, for each vane, for each vane, a pivot axis orientated parallel to the rotational axis and about which said each vane pivots between the extended and retracted positions.
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公开(公告)号：US10012081B2
公开(公告)日：2018-07-03
申请号：US15264823
申请日：2016-09-14
IPC分类号： F03C4/00 , F04C2/00 , F04C18/00 , F01C1/32 , F04C2/32 , F04C15/00 , F04C18/32 , F04C29/02 , F04C29/00 , F01C19/02 , F01C21/00 , F01C21/04 , F01C21/08 , F01C21/10
CPC分类号： F01C1/321 , F01C1/3442 , F01C19/02 , F01C21/008 , F01C21/04 , F01C21/0809 , F01C21/0836 , F01C21/10 , F04C2/321 , F04C15/0065 , F04C15/0088 , F04C18/321 , F04C29/0057 , F04C29/02 , F04C2240/60
摘要： A device usable as an impeller has a plurality of vanes rotating eccentrically about a shaft. Eccentric rotation is enabled by a cam mounted on the shaft. The vanes are received within slots in a rotor which surrounds the shaft and rotates about an axis coaxial with the shaft. The rotor rotates within a housing having a cylindrical surface facing the rotor. The surface is eccentric to the shaft. The vanes execute reciprocal motion upon rotation of the rotor. The vane motion is constrained so that the edges of the vanes remain proximate to the cylindrical surface during rotation.
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