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WO1999056004A1 - Moteurs a piston rotatif epicycloidaux et hypocycloidaux comprenant des rouleaux ou des segments de rouleaux comme modules d'etancheite - Google Patents

Moteurs a piston rotatif epicycloidaux et hypocycloidaux comprenant des rouleaux ou des segments de rouleaux comme modules d'etancheite Download PDF

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Publication number
WO1999056004A1
WO1999056004A1 PCT/DE1999/001048 DE9901048W WO9956004A1 WO 1999056004 A1 WO1999056004 A1 WO 1999056004A1 DE 9901048 W DE9901048 W DE 9901048W WO 9956004 A1 WO9956004 A1 WO 9956004A1
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WIPO (PCT)
Prior art keywords
rotary
sealing
rotary piston
rollers
dkm
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Ceased
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PCT/DE1999/001048
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German (de)
English (en)
Inventor
Ernst Juraschka
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Individual
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Individual
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Publication of WO1999056004A1 publication Critical patent/WO1999056004A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F01C1/104—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member one member having simultaneously a rotational movement about its own axis and an orbital movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/22—Rotary-piston machines or engines of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
    • F01C17/02—Arrangements for drive of co-operating members, e.g. for rotary piston and casing of toothed-gearing type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/805—Fastening means, e.g. bolts

Definitions

  • the aim of the invention is to provide rotary piston machines (abbreviated to DKM) in which the sealing elements are rollers that roll on the outer surface of the piston when the piston rotates, thereby achieving very low friction losses. So that the sealing rollers, which are designed as solid or hollow rollers, do not jam in extreme cases and get uneven wear, they can be driven at a minimum speed via freewheels from the outside if necessary (not shown).
  • DKM rotary piston machines
  • a rotary piston DK which has the shape of a kidney, detailed description see paragraph 5.2, is guided and controlled by means of an eccentric shaft EW so that it seals the two sealing rollers DR1 and. DR2, which is designed as a hollow ceramic roller and is hydrostatically supported via the two separate pressure oil connections OE, is constantly touched.
  • the sealing rollers can be guided di- rectly in the housing, or in slide shoes GS (see Fig.1.2 upper half), which can be easily replaced or readjusted when worn.
  • This rotary lobe machine is shown here as a compressor (air compressor), with the air automatically via two inlet valves, e.g. EV1 u. EV2 is sucked in interactively and expressed via two exhaust valves (here AV3 and AV4) if the rotary lobe is driven at the same speed but in the opposite direction of rotation to the eccentric shaft.
  • the sealing rollers DR can also slide or roll by means of needle bearings NL on guide shafts FW, as shown in Fig.1.3 u. 1.4 shown, stored. If a guide shaft is guided in two opposite eccentric bushings EB, as shown in Fig.1.13, the contact pressure of the sealing rollers on the rotary piston can be adjusted exactly from the outside, or readjusted when worn.
  • roller segments can be used as sealing elements with the same shapes of the rotary lobes.
  • These sealing strips DL are guided in the grooves of the housing and, depending on requirements, can be firmly screwed as shown in Fig.1.9 and on the left-hand side of Fig.1.8, using SH screws and an intermediate plate ZP, or as in Fig.1.10 pressed on by means of pressure springs DF or, as in Fig.1.11, pressed on the rotary piston with adjustable pressures using OE pressure oil.
  • This second variant has the effect that by sliding the contact lines on the entire circumferential surface of the rotary lobe and on the other on a small segment of the circle of the sealing strip, foreign body particles such as those e.g. arise in the internal combustion engine, are scraped off. This process is intensified if the sealing strips are provided with small parallel grooves, as shown in Fig.1.12 enlarged.
  • rollers or roller segments as sealing elements in rotary lobe machines, completely new forms of rotary lobes and housings are required.
  • Several solutions are shown in the following sections. To do this, it is first necessary to briefly show the individual circular curves, the so-called cycloids, and then the relationship to one another in order to obtain results on the usability of these curves for technical machines, the rotary or rotary piston machines. Geometric and mathematical evidence is to be largely avoided here, so that the scope of a patent application is not exceeded and, on the other hand, reference can be made to the relevant specialist literature. the interaction of the various cycloids with one another is only incompletely described.
  • FIG.2.1 On drawing BI.2 is shown in Fig.2.1 a single-pointed (single-arched) epicycloid EZ1, which arises after the 1.BG by looking at any point P on the rolling circle RK with the radius r, which is on the fixed circle FK with the same radius r rolls. After any roll angle ⁇ , the center point of the roll circle from M RK0 to M RK1 and
  • the entire inner surface of the EZ1 is thus divided by the straight line G1-G2 in the horizontal starting position into two parts of the same size.
  • the EZ1 forms between it and the curve line and the two points W u.
  • the eccentric point E has made three full rotations, see also description in paragraph 6.1.
  • Fig. 2.2 The two-headed (two-arched) epicycloid EZ2 on drawing.
  • Fig. 2.2 shows a two-pronged (two-arched) epicycloid EZ2 in Fig.2.2, which arises after the 1st BG if you consider any point P on the rolling circle RK with the radius r, which is on the fixed circle FK with the rolls double radius 2r.
  • the center point of the roll circle from M RK0 to M RK1 and
  • the eccentric point E 1 again reaches the same position, the straight line E 1 P 1 only rotating a third (120 °) in the same direction of rotation and reaching the position E ⁇ .
  • Fig.2.2 shows a second EZ1 '(dashed line) around the eccentric point E, the angle of rotation ⁇ of the eccentric point E being equal to the drawn angle ß of the fixed EZ.
  • a three-pointed (triple-arched) epicycloid EZ3 which arises after the 1.BG by looking at any point P on the rolling circle RK with the radius r, which is on the fixed circle FK with the triple radius 3r rolls.
  • P 1 is therefore a point of EZ3.
  • a second EZ2 '(dashed line) is drawn around the eccentric point E, the angle of rotation ⁇ of the eccentric point E being equal to the drawn angle ⁇ of the fixed EZ3.
  • the three turning points W11, W12 u. W13 of EZ3 describe a four-headed hypocycloid (HZ4) with the four tips S11 to S14, see par.3.3.
  • the 3.BG can also be used for hypocycloids and that in each n-headed HZ one with one tip less (n-1) can always be inserted if they have the same eccentricity e. It is also described in paragraph 3.5 that a rotating hypocycloid with the same eccentricity can also be used in any fixed epicycloid.
  • Fig.3.1 shows a double-headed hypocycloid HZ2 in Fig.3.1, which arises after the 1st BB when one considers any point P on the rolling circle RK with the radius r, which rolls on the inside of the fixed circle FK with the radius 2r .
  • the point P1 lies on the straight line G1-G2.
  • FIG. 3.2 shows a three-pointed (three-armed) hypocycloid HZ3 in Fig. 3.2, which arises after the 1st BG if you look at any point P on the rolling circle RK with the radius r, which is on the inside of the fixed circle FK with the Radius 3r rolls.
  • P 1 is therefore a point of HZ3.
  • a second straight line HZ2 ' is drawn in point E 1 , the angle of rotation ⁇ of the eccentric point E being equal to the drawn angle ⁇ of the fixed HZ3.
  • the HZ2 ' has rotated in the opposite direction by the angle ⁇ , which has the same value as ⁇ .
  • the point P 1 of the fixed HZ3 previously described after the 3.BG is equal to that
  • P 2 is therefore also a point of EZ4.
  • the straight line has again reached the starting position E 1 -P 1 , the point P being a complete four-arch hypocycloid with the four tips S11, S12, S13 and. S14 has formed.
  • Fig.3.3 shows a second HZ3 '(dashed line) around the eccentric point E., the angle of rotation ⁇ of the eccentric point E being equal to the drawn angle ß of the fixed HZ4.
  • the HZ3 ' has rotated in the opposite direction by the angle ⁇ , which has the same value as ⁇ .
  • the point P1 of the EZ4 previously described after the 3rd BG is equal to the tip SV of the rotating HZ3 '.
  • the inner HZ3 ' touches with its arc between the tips SV u. S2 ' at the point of contact B the arc of the outer HZ4 between its tips S11 u. S14.
  • an arc of the inner hypocycloid always touches the arc of the outer one, which faces the eccentric point E.
  • Fig.3.4 shows a two-headed epicycloid EZ2 (description see par.2.2) in which a three-headed hypocycloid HZ3 (description see par.3.2) with the same eccentricity e is inserted.
  • the two turning tips W1 and. W2 always two arcs of the rotating HZ3 (see dashed HZ3 "), except in the turning points, where a tip of the HZ3 with a turning tip of the EZ2 is consistent.
  • the elongated epicycloids EZ..a on drawing. BI.4 in Fig.4.1 is a single-headed (single-arched) epicycloid EZ1, as described in Paragraph 2.1 and a larger EZV partially shown (dashed line), which arises after the 1.BG if you point any point P ' the rolling circle RK 'with the radius r' viewed, which rolls on the fixed circle FK 'with the same radius r ".
  • an elongated epicycloid is created by considering a point Pa within the rolling circle.
  • Fig.4.1 The elongated epicycloids EZ..a on drawing. BI.4 in Fig.4.1 is a single-headed (single-arched) epicycloid EZ1, as described in Paragraph 2.1 and a larger EZV partially shown (dashed line), which arises after the 1.BG if you point any point P ' the rolling circle RK 'with the radius r' viewed, which rolls on the fixed circle
  • this straight line Pai-Kai corresponds to the connecting line of two 180 ° offset circles RKi 'u. AC 2 ', and the point Kai is therefore also a point of EZ1a. In addition, this straight line always goes through the fixed turning point W of the EZ1.
  • FIG.4.2 On drawing BI.4 is shown in Fig.4.2 a three-pointed (three-armed) HZ3, as described in Paragraph 3.2, and a larger HZ3 '(dashed line), which arises after the 1st BG if you point any point P' considered the rolling circle RK 'with the radius r ", which rolls on the inside of the fixed circle FK' with the radius 3r".
  • this straight line Pai-Hai corresponds to the connecting line of two rolling circles RK'i u. RK ' 2 and the point shark is therefore also a point of the HZ3a.
  • this straight line always touches at a moving contact point B, see also Fig. 3.2, the original HZ3.
  • HZna n-arched elongated hypocycloid
  • HZ2a two-armed, elongated hypocycloid
  • the letter e used here for the maximum eccentricity of the ellipse from the center circle MPK is not identical to the same letter e used in the specialist literature for the linear eccentricity, here designated j, which indicates the distance dimension of the focal points J from the center of the ellipse, see Dubbel or other specialist books.
  • Fig.5.1 shows an elongated, double-arched hypocycloid HZ2a (ellipse), as described above, first inserted in a stretched, single-arched epicycloid EZ1a with the same eccentricity e and the same cycloid beam length a (horizontal position), whereby the two highest points H1 u. H3 of HZ2a touch the highest point K1 and the lowest point K2 of EZ1a.
  • HZ2a is now guided with its center MHZ2 on the eccentric circle EK so that it has rotated by 90 ° and the eccentric point E by 180 °, see dash-dot line in Fig.4.3, it overlaps the curve shape the external EZ1 a to the right of the two intersections HV u. H2 'considerably, see vertically dashed overlaps UES1.
  • the curve shape of the external EZ1a must be increased to a EZ1g between the highest point K1 and the lowest point K2 (see dashed line) if the internal HZ2a is observed, or the curve shape of the inner HZ2a 30 between if the outer EZ1a is observed the four points H1-H2-H3-H4 can be reduced to a HZ2k (dotted line).
  • This rotary lobe machine has only proven itself to a limited extent in practice, since the two tips of the rotary lobe designed with the angle ⁇ are subject to rapid wear. Also constructive measures with sealing strips DL1 and. DL2 made of wear-resistant materials such as hard metal or ceramic are not ideal solutions because the high centrifugal forces that are generated cause the inner housing wall to be subjected to great wear. 13
  • FIG.5.2 shows a stretched, double-arched epicycloid EZ2a as an outer curve in Fig.5.2, in which a stretched, single-arched epicycloid EZ1a rotates (dash-dot-dot line).
  • UES3 vertically dashed areas
  • Overlaps UES4 see horizontally hatched areas, also occur when an elongated, three-armed hypocycloid HZ3a is inserted in the same EZ2a and guided with its center MHZ3 onto the eccentric circle EK in such a way that the rotational speed of the eccentric point is three times greater than that of the rotating HZ3 and the directions of rotation are the same.
  • rotary lobe machines whose rotary lobe shape (jacket curves) are derived from elongated epicycloids and are reduced by a certain radius b.
  • these rotary piston machines abbreviated DKM-EZ .. b, must be provided with inlet and exhaust valves, similar to the reciprocating piston machines and are therefore suitable for particularly high pressures.
  • these two straight lines can be used for precise guidance if the rotary piston in the two points W u.
  • G is provided with two guide rollers FR1 and FR2, which slide along in a cross groove KNU on the side of the fixed housing. See the drawing. BI.1 in Fig.1.1 u. 1.2 shown DKM-EZ1 (sections AA uB-B).
  • a simple eccentric shaft with the eccentricity e is sufficient for the bearing and guiding of the rotary piston and one can rely on an expensive u. do without complicated planetary gear.
  • the shape of the housing (envelope curve) HK-EZ2g between the two sealing rollers is determined by the outer curve shape of the rotary lobe when it is in the two turning points G1 u.
  • G2 is located or generated by the rotating piston and corresponds to an enlarged, double-arched epicycloid.
  • VE and VA self-opening inlet and self-closing outlet valves
  • Bl.12 schematically shown in Figs. 12.1 to 12.5 in five phases.
  • this DKM is particularly suitable as a gas engine or steam engine.
  • the points G1 and G2 have moved on the HZ3 to GV and G2 'and the point H1 on the HZ3h to HV.
  • This rotary piston machine with only one rotary piston has the performance of a three-cylinder reciprocating piston engine, although the degree of uniformity can be significantly cheaper and about 15-20% energy can be saved by eliminating the connecting rods.
  • this rotary piston internal combustion engine is only about half the weight of a comparable reciprocating piston engine, which means that the motor vehicles can be built correspondingly lighter in the future, which again saves energy.
  • two or more rotary piston machines can also be arranged in parallel next to one another, but in this case the control of the rotary pistons can be made simpler via a central shaft and corresponding planet wheels.
  • the three points G11, G12 u. G13 have G1 V, G12 ' u. G13 'shifted.
  • this DKM-EZ3 has proven itself best as an internal combustion engine in both the Otto and diesel processes. With just one revolution of the piston, the four required work cycles, see paragraph 5.2, are carried out a total of six times in the four work rooms, so that the performance of this DKM-EZ3 corresponds to that of a six-cylinder reciprocating piston engine, with energy and weight savings are larger than with the DKM-EZ2.
  • a further increase in the arcs on the rotary lobe e.g. A DK-EZ4 with four epicycloidal arches and five working chambers, as described at the beginning of this paragraph, is entirely possible, but is no longer an advantage due to the ever larger scope and the increasing number of valves.
  • rotary lobe machines whose rotary lobe shape (jacket curve) is derived from hypocycloids and reduced by a certain radius b.
  • These rotary lobe machines abbreviated to DKM-HZ .. b, can be provided with inlet and outlet slots, but the use of self-opening and self-closing valves is more advantageous from DKM-HZ4 for reasons of space.
  • This fixed point can be used for additional guidance if the rotary piston is provided with a longitudinal groove NU which slides around a guide roller FR attached laterally in the fixed housing.
  • a simple eccentric shaft with the eccentricity e is sufficient for the bearing and precise guidance of the rotary lobe and one can do without an expensive and complicated planetary gear. If, on the other hand, two or more rotary disc machines are arranged next to one another, the control of the individual rotary pistons via a central shaft and planet wheels is easier.
  • the housing shape (envelope curve) HK outside the sealing roller is generated by the rotating piston and corresponds to an enlarged, curved, single-arched EZ1g epicycloid.
  • the point G1 has moved to GV, G2 to G2 'and B2 to B2'.
  • the rotary piston After half a turn (180 °) of the eccentric shaft, the rotary piston has turned 90 ° in the same direction and has reached the position DK "shown in dash-dot line.
  • the points G1, G2, B1 and B2 are after G1 ", G2", B1 "u. B2 "hiked.
  • this DKM is very well suited as a pump or compressor, whereby the media to be transported such as liquids, gases or pulverized solids via the inlet and outlet slots in the housing near the sealing rollers (ES and AS) can be controlled. If, on the other hand, gases or water vapor with excess pressure are admitted through the inlet slot ES, this DKM is very suitable as a gas engine or steam engine.
  • the housing shape (envelope curve) HK between the two sealing rollers DR1 u. DR2 is generated by the rotating piston and corresponds to a slightly enlarged, stretched, double-arched epicycloid EZ2g.
  • the attachment of additional sealing strips DL in the rotary lobe to increase the interior pressures is much cheaper here than with the DKM-HZ2, since the contact points migrate only slightly according to the smaller radii of curvature, which depend on the selected cyclic beam length a, and are therefore much narrower can be executed.
  • the geometric conditions are also much more favorable here than with the DKM (Wankel engine), which was described in Section 4.4, where the sealing strips had to be pointed.
  • the three turning tips S1, S2 u. S3 the HZ3 of the rotary lobes are on the fixed EZ2 according to SV, S2 'u. S3 'hiked.
  • a fifth working chamber AK5 (hatched horizontally) has now been formed, the volume of which after a rotation angle of 150 ° has reached the greatest value and has returned to zero after 300 °.
  • a new working chamber is formed alternately behind each sealing roller, while one disappears at the same time, so that a total of six working chambers are formed with a full rotation of the rotary piston, and six also become zero again.
  • Rotary piston machines with four (n-) curved, hypocycloidal rotary pistons DKM-HZ4 (n)
  • the previously described rotary piston machines with a two- and three-curved hypocycloidal rotary piston can each be extended by one curve, whereby the number of sealing rollers must always be less than one Bends on the rotary lobe (n-1).
  • the housing shape (envelope curve) HK between the three sealing rollers DR1, DR2 and. DR3 is generated by the rotating piston and corresponds to a slightly enlarged, elongated, triple-arched EZ3g epicycloid.
  • the volume of the working chamber AK2 is close to zero and that of AK5 increases from zero
  • a seventh working chamber AK7 is now formed behind the sealing roller DR1, which constantly increases as it continues to rotate , see the five phases (Fig.15.1-15.5) on drawing BI.15
  • JURA-DK-ESM The JURA rotary lobe energy-saving motor
  • Fig.16.1 (section A-A) and 16.2 (section B-B) show a rotary piston engine in series production, in which the explosive combustion (energy conversion
  • Each sealing unit (sealing module) has a guide role, e.g. FR1, as shown in section B-B, rolling on a guide shaft FR1, which is between two eccentric bushings EB1 u.
  • EB2 eccentric bushings
  • the three inlet valves EV1-EV3 and the three outlet valves AV1-AV3 are opened and closed electronically in this embodiment by a hydraulic piston HK1-HK6 via a control disk SS and a control block SB 10 or by means of a computer (computer) so that the highest power output with the lowest energy consumption is achieved at every speed.
  • the used gases, vapors or liquids can be passed through condensers and heat exchangers and can be fed back to the engine through the inlet valves after they have been charged. Due to the rolling sealing modules and the low friction losses achievable according to the invention, even slight pressure or temperature differences are sufficient to operate this motor in an energy-saving manner. These advantages have also been found when used as so-called heat pumps, in which, however, the rotary lobe machines with hypocycloidal pistons (DKM-HZ ..) and with inlet and outlet slots have proven to be the most economical.
  • the side seals of the rotary lobes can be made with low friction using known gap seals with hydraulic back pressure or with circumferential sealing profiles made of new materials such as ceramic or plastic, which are low-friction and self-lubricating.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

L'invention concerne des moteurs à piston rotatif dont la forme extérieure du piston rotatif est dérivée d'épicycloïdes ou d'hypocycloïdes développées, présentant une longueur (a) quelconque de rayon de cycloïde, et est réduite d'un rayon (b) défini. Ces moteurs se caractérisent en ce que le piston rotatif est entraîné et commandé au moyen d'un arbre excentrique présentant la même excentricité (e) ou au moyen d'un engrenage planétaire, de telle sorte que, selon l'invention, il roule contre un ou plusieurs rouleaux d'étanchéité, c'est-à-dire 2, 3 ou plus, d'un diamètre d=2b, qui sont montés, à la même distance (a) du centre du moteur à combustion interne, de préférence de façon à rouler sur des arbres dans un logement fixe, à glisser dans des coques de guidage ou à être portés hydrostatiquement dans des sabots de guidage, cela permettant d'avoir de très faibles pertes dues au frottement.
PCT/DE1999/001048 1998-03-21 1999-04-07 Moteurs a piston rotatif epicycloidaux et hypocycloidaux comprenant des rouleaux ou des segments de rouleaux comme modules d'etancheite Ceased WO1999056004A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19812853A DE19812853A1 (de) 1998-03-21 1998-03-21 Epi- und Hypozylkloidische Drehkolbenmaschine mit Rollen oder Rollensegmente als Dichtmodule
DE19812856.3 1998-04-08

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WO1999056004A1 true WO1999056004A1 (fr) 1999-11-04

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US9523310B2 (en) 2004-01-12 2016-12-20 Liquidpiston, Inc. Hybrid cycle combustion engine and methods
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WO2024094295A1 (fr) 2022-11-02 2024-05-10 Pierburg Gmbh Machine a piston rotatif a joint fixe
US12146492B2 (en) 2021-01-08 2024-11-19 Rotoliptic Technologies Incorporated Helical trochoidal rotary machines with improved solids handling
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JP2014514492A (ja) * 2011-03-29 2014-06-19 リキッドピストン， インコーポレイテッド サイクロイドロータエンジン
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JP2018168856A (ja) * 2011-03-29 2018-11-01 リキッドピストン， インコーポレイテッド サイクロイドロータエンジン
US10844720B2 (en) 2013-06-05 2020-11-24 Rotoliptic Technologies Incorporated Rotary machine with pressure relief mechanism
US10087758B2 (en) 2013-06-05 2018-10-02 Rotoliptic Technologies Incorporated Rotary machine
US11506056B2 (en) 2013-06-05 2022-11-22 Rotoliptic Technologies Incorporated Rotary machine
US10844859B2 (en) 2018-09-11 2020-11-24 Rotoliptic Technologies Incorporated Sealing in helical trochoidal rotary machines
US11306720B2 (en) 2018-09-11 2022-04-19 Rotoliptic Technologies Incorporated Helical trochoidal rotary machines
US11499550B2 (en) 2018-09-11 2022-11-15 Rotoliptic Technologies Incorporated Sealing in helical trochoidal rotary machines
US10837444B2 (en) 2018-09-11 2020-11-17 Rotoliptic Technologies Incorporated Helical trochoidal rotary machines with offset
US11608827B2 (en) 2018-09-11 2023-03-21 Rotoliptic Technologies Incorporated Helical trochoidal rotary machines with offset
US11988208B2 (en) 2018-09-11 2024-05-21 Rotoliptic Technologies Incorporated Sealing in helical trochoidal rotary machines
US11815094B2 (en) 2020-03-10 2023-11-14 Rotoliptic Technologies Incorporated Fixed-eccentricity helical trochoidal rotary machines
CN111997748A (zh) * 2020-09-07 2020-11-27 陕西新年动力科技有限公司 一种滚动密封式转子发动机
CN111997748B (zh) * 2020-09-07 2023-10-31 陕西新年动力科技有限公司 一种滚动密封式转子发动机
US11802558B2 (en) 2020-12-30 2023-10-31 Rotoliptic Technologies Incorporated Axial load in helical trochoidal rotary machines
US12473912B2 (en) 2020-12-30 2025-11-18 Rotoliptic Technologies Incorporated Axial load in helical trochoidal rotary machines
US12146492B2 (en) 2021-01-08 2024-11-19 Rotoliptic Technologies Incorporated Helical trochoidal rotary machines with improved solids handling
US12352268B2 (en) 2021-01-08 2025-07-08 Rotoliptic Technologies Incorporated Pumps, compressors, and expanders with a teardrop-shaped rotor
WO2024094295A1 (fr) 2022-11-02 2024-05-10 Pierburg Gmbh Machine a piston rotatif a joint fixe

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