EP1156185A2 - Multiple crank drive for power machines , especially for membrane pumps - Google Patents

Multiple crank drive for power machines , especially for membrane pumps Download PDF

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Publication number
EP1156185A2
EP1156185A2 EP01110889A EP01110889A EP1156185A2 EP 1156185 A2 EP1156185 A2 EP 1156185A2 EP 01110889 A EP01110889 A EP 01110889A EP 01110889 A EP01110889 A EP 01110889A EP 1156185 A2 EP1156185 A2 EP 1156185A2
Authority
EP
European Patent Office
Prior art keywords
crankshaft
drive
crank
crank drive
multiple crank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01110889A
Other languages
German (de)
French (fr)
Other versions
EP1156185A3 (en
EP1156185B1 (en
Inventor
Niels Dr. Kohlhase
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lewa GmbH
Original Assignee
Lewa GmbH
Lewa Herbert Ott GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lewa GmbH, Lewa Herbert Ott GmbH and Co KG filed Critical Lewa GmbH
Publication of EP1156185A2 publication Critical patent/EP1156185A2/en
Publication of EP1156185A3 publication Critical patent/EP1156185A3/en
Application granted granted Critical
Publication of EP1156185B1 publication Critical patent/EP1156185B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/006—Crankshafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18208—Crank, pitman, and slide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18248—Crank and slide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2173—Cranks and wrist pins
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2173—Cranks and wrist pins
    • Y10T74/2174—Multiple throw

Definitions

  • the invention relates to a multiple crank drive for work machines, in particular for diaphragm pumps, according to the preamble of claim 1.
  • crank drives of the generic type which are used to drive for several machines arranged side by side and connected to each other, in particular, for example, for so-called triplex diaphragm pumps arrive
  • the arrangement is usually made such that a Common crankshaft is provided on which the spaced apart individual crank drives, usually consisting of an eccentric, connecting rod, connecting rod head etc. are arranged.
  • This crankshaft which is arranged side by side Machines inevitably has a not inconsiderable length, is at both ends by means of a bearing in a housing stored. Because of this inevitably longer length of the crankshaft must these are also relatively strong, i.e. with a sufficiently large diameter his. In addition, there is considerable bearing stress, which accordingly also requires correspondingly large bearings.
  • the invention is therefore based on the object to eliminate the described Disadvantages of designing the multiple crank drive of the generic type in such a way that the crankshaft is built shorter, with a smaller diameter can and finally only a lower bearing load caused.
  • the invention is based on the essential idea that drives the Crankshaft serving multiple machines to be stored on the fly in the housing. In a preferred embodiment of the invention, this means that the bearing points of the multiple crank drive only on both sides of the middle crank drive are located.
  • crankshaft does not require any end-side, so far the Storage serving pin more, so that the crankshaft built shorter overall and can therefore also be provided with a smaller diameter. This also gives the main advantage of lower bearing stress, so that smaller-sized bearings can be provided.
  • crankshaft results if, how provided according to the invention, the drive for the multiple crank drive is arranged between two crank drives. Conveniently located the drive is also close to a bearing point.
  • crankshaft 1 is used to drive three machines arranged side by side and is accordingly with three individual crank mechanisms 3, 4, 5 provided. These each have a connecting rod 6, 7, 8 on the one hand on an eccentric disk 9 or 10 or 11 and on the other hand in a cylindrical guide 12, 13, 14 displaceable connecting rod head 15, 16, 17 is articulated.
  • a piston rod 18, 19, 20 is articulated on the connecting rod heads 15, 16, 17, which due to the effect exerted by the crankshaft 1 in the direction of Double arrows 21 can be moved back and forth and thus the connected working machines drives.
  • the crankshaft 1 is flying in the housing 2 stored.
  • the two bearing points 22, 23 are located the crankshaft 1, which are otherwise arranged at the respective end of the crankshaft 1 and are fixed in the side end walls of the housing, exclusively on both sides of the central crank mechanism 4, the attachment of these two Bearing points 22, 23, as can be seen from the drawing, in the illustrated embodiment at the bottom of the housing 2.
  • This makes it possible to To build crankshaft 1 significantly shorter, since the crankshaft journal is no longer at the end provided for storage in the side end walls of the housing 2 Need to become.
  • the diameter of the crankshaft can be adjusted accordingly can be kept smaller, which in total also stresses the bearings 22, 23 reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Transmission Devices (AREA)

Abstract

The mechanism has a crankshaft (1) arranged in a casing (2), which has at least two support points (22,23) and is driven by a drive (24), such as a gear mechanism. The crankshaft drives the machine with a number of piston rods (18-20), each through a crank mechanism (3-5). The crank shaft is over-mounted in the casing (2). The support positions (22,23) of the crank shaft are on either side of the central crank mechanism (4).

Description

Die Erfindung betrifft einen Mehrfachkurbeltrieb für Arbeitsmaschinen, insbesondere für Membranpumpen, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a multiple crank drive for work machines, in particular for diaphragm pumps, according to the preamble of claim 1.

Bei bekannten Mehrfachkurbeltrieben der gattungsgemäßen Art, die zum Antrieb für mehrere nebeneinander angeordnete und miteinander verbundene Arbeitsmaschinen, insbesondere beispielsweise für sog. Triplex-Membranpumpen, zur Anwendung gelangen, ist die Anordnung üblicherweise derart getroffen, daß eine gemeinsame Kurbelwelle vorgesehen ist, auf welcher im Abstand voneinander die einzelnen Kurbeltriebe, üblicherweise bestehend aus Exzenter, Pleuel, Pleuelkopf usw. angeordnet sind. Diese Kurbelwelle, die aufgrund der nebeneinander angeordneten Arbeitsmaschinen zwangsläufig eine nicht unbeträchtliche Länge aufweist, ist an ihren beiden Enden mittels jeweils einer Lagerstelle in einem Gehäuse gelagert. Aufgrund dieser zwangsläufig größeren Länge der Kurbelwelle muß diese auch relativ stark, d.h. mit ausreichend großem Durchmesser, ausgebildet sein. Darüber hinaus ergibt sich eine beträchtliche Lagerbeanspruchung, die demgemäß auch entsprechend groß dimensionierte Lager erfordert. In known multiple crank drives of the generic type, which are used to drive for several machines arranged side by side and connected to each other, in particular, for example, for so-called triplex diaphragm pumps arrive, the arrangement is usually made such that a Common crankshaft is provided on which the spaced apart individual crank drives, usually consisting of an eccentric, connecting rod, connecting rod head etc. are arranged. This crankshaft, which is arranged side by side Machines inevitably has a not inconsiderable length, is at both ends by means of a bearing in a housing stored. Because of this inevitably longer length of the crankshaft must these are also relatively strong, i.e. with a sufficiently large diameter his. In addition, there is considerable bearing stress, which accordingly also requires correspondingly large bearings.

Diese Beanspruchung wird auch noch dadurch vergrößert, daß der Antrieb für die Kurbelwelle, insbesondere ein Schneckengetriebe, gleichfalls auf der Kurbelwelle angeordnet ist und sich üblicherweise im Innern des Gehäuses nahe der einen endseitigen Lagerstelle der Kurbelwelle befindet.This strain is also increased by the fact that the drive for the Crankshaft, especially a worm gear, also on the crankshaft is arranged and usually inside the housing near one end bearing of the crankshaft.

Der Erfindung liegt daher die Aufgabe zugrunde, zur Beseitigung der geschilderten Nachteile den Mehrfachkurbeltrieb der gattungsgemäßen Art derart auszugestalten, daß die Kurbelwelle kürzer gebaut, mit einem geringeren Durchmesser versehen werden kann und schließlich auch nur eine geringere Lagerbeanspruchung verursacht.The invention is therefore based on the object to eliminate the described Disadvantages of designing the multiple crank drive of the generic type in such a way that the crankshaft is built shorter, with a smaller diameter can and finally only a lower bearing load caused.

Die Merkmale der zur Lösung dieser Aufgabe geschaffenen Erfindung ergeben sich aus Anspruch 1. Vorteilhafte Ausgestaltungen hiervon sind in den weiteren Ansprüchen beschrieben.The features of the invention created to achieve this object result itself from claim 1. Advantageous refinements of this are in the others Described claims.

Der Erfindung liegt der wesentliche Gedanke zugrunde, die zum Antrieb der Mehrfacharbeitsmaschinen dienende Kurbelwelle fliegend im Gehäuse zu lagern. In einer bevorzugten Ausgestaltung der Erfindung bedeutet dies, daß sich die Lagerstellen des Mehrfachkurbeltriebs ausschließlich beidseits des mittleren Kurbeltriebs befinden.The invention is based on the essential idea that drives the Crankshaft serving multiple machines to be stored on the fly in the housing. In a preferred embodiment of the invention, this means that the bearing points of the multiple crank drive only on both sides of the middle crank drive are located.

Aus diesem Grund benötigt die Kurbelwelle auch keine endseitigen, bisher der Lagerung dienenden Zapfen mehr, so daß die Kurbelwelle insgesamt kürzer gebaut und damit auch mit einem kleineren Durchmesser versehen werden kann. Hierdurch ergibt sich auch der wesentliche Vorteil einer geringeren Lagerbeanspruchung, so daß auch kleiner dimensionierte Lager vorgesehen werden können.For this reason, the crankshaft does not require any end-side, so far the Storage serving pin more, so that the crankshaft built shorter overall and can therefore also be provided with a smaller diameter. This also gives the main advantage of lower bearing stress, so that smaller-sized bearings can be provided.

In einem praktischen Anwendungsbeispiel bedeutet dies, daß bei ansonsten gleicher Anordnung eine Kurbelwelle, die bisher eine Länge von 2,10 m aufwies, mit einer Länge von 1,50 m gebaut werden kann.In a practical application example, this means that otherwise the same Arrangement with a crankshaft, which previously had a length of 2.10 m a length of 1.50 m can be built.

Eine weitere vorteilhafte Verkürzung der Kurbelwelle ergibt sich dann, wenn, wie erfindungsgemäß weiterhin vorgesehen, der Antrieb für den Mehrfachkurbeltrieb zwischen zwei Kurbeltrieben angeordnet ist. Zweckmäßigerweise befindet sich hierbei der Antrieb außerdem nahe einer Lagerstelle.A further advantageous shortening of the crankshaft results if, how provided according to the invention, the drive for the multiple crank drive is arranged between two crank drives. Conveniently located the drive is also close to a bearing point.

Insgesamt werden somit durch die Erfindung nicht unbeträchtliche bauliche Vorteile erzielt, die sich nicht zuletzt vorteilhaft auf die Preisgestaltung der gesamten Anordnung auswirken.All in all, the invention thus provides considerable structural advantages achieved, which not least benefited the pricing of the whole Impact arrangement.

Die Erfindung wird im folgenden in Form eines Ausführungsbeispiels anhand der einzigen Zeichnung näher erläutert. Diese zeigt im Längsschnitt einen Mehrfachkurbeltrieb gemäß der Erfindung.The invention is described in the following in the form of an exemplary embodiment single drawing explained in more detail. This shows a multi-crank drive in longitudinal section according to the invention.

Wie aus der Zeichnung ersichtlich, ist zum Antrieb von mehreren nebeneinander angeordneten, nicht näher dargestellten Arbeitsmaschinen, vorzugsweise von Dreifachmembranpumpen, ein Mehrfachkurbeltrieb vorgesehen. Dieser weist eine Kurbelwelle 1 auf, die in einem Gehäuse 2 angeordnet ist.As can be seen from the drawing, several are driven side by side arranged, not shown, preferably from Triple diaphragm pumps, a multiple crank drive provided. This one Crankshaft 1, which is arranged in a housing 2.

Beim dargestellten Ausführungsbeispiel dient die Kurbelwelle 1 zum Antrieb von drei nebeneinander angeordneten Arbeitsmaschinen und ist demgemäß mit drei einzelnen Kurbeltrieben 3, 4, 5 versehen. Diese weisen jeweils ein Pleuel 6, 7, 8 auf, das einerseits an einer an der Kurbelwelle befestigten Exzenterscheibe 9 bzw. 10 bzw. 11 und andererseits an einem in einer zylindrischen Führung 12, 13, 14 verschiebbaren Pleuelkopf 15, 16, 17 angelenkt ist.In the illustrated embodiment, the crankshaft 1 is used to drive three machines arranged side by side and is accordingly with three individual crank mechanisms 3, 4, 5 provided. These each have a connecting rod 6, 7, 8 on the one hand on an eccentric disk 9 or 10 or 11 and on the other hand in a cylindrical guide 12, 13, 14 displaceable connecting rod head 15, 16, 17 is articulated.

An den Pleuelköpfen 15, 16, 17 ist jeweils eine Kolbenstange 18, 19, 20 angelenkt, die aufgrund der von der Kurbelwelle 1 ausgeübten Wirkung in Richtung der Doppelpfeile 21 hin- und herbewegbar ist und somit die angeschlossenen Arbeitsmaschinen antreibt.A piston rod 18, 19, 20 is articulated on the connecting rod heads 15, 16, 17, which due to the effect exerted by the crankshaft 1 in the direction of Double arrows 21 can be moved back and forth and thus the connected working machines drives.

Wie deutlich aus der Zeichnung ersichtlich, ist die Kurbelwelle 1 fliegend im Gehäuse 2 gelagert. Zu diesem Zweck befinden sich die beiden Lagerstellen 22, 23 der Kurbelwelle 1, die ansonsten am jeweiligen Ende der Kurbelwelle 1 angeordnet und in den seitlichen Stirnwänden des Gehäuses festgelegt sind, ausschließlich beidseits des mittleren Kurbeltriebs 4, wobei die Befestigung dieser beiden Lagerstellen 22, 23, wie aus der Zeichnung ersichtlich, beim dargestellten Ausführungsbeispiel am Boden des Gehäuses 2 erfolgt. Hierdurch ist es möglich, die Kurbelwelle 1 erheblich kürzer zu bauen, da nicht mehr endseitige Kurbelwellenzapfen zur Lagerung in den seitlichen Stirnwänden des Gehäuses 2 vorgesehen werden müssen. Gleichzeitig kann der Durchmesser der Kurbelwelle entsprechend kleiner gehalten werden, was insgesamt auch die Beanspruchung der Lager 22, 23 verringert.As can clearly be seen from the drawing, the crankshaft 1 is flying in the housing 2 stored. For this purpose, the two bearing points 22, 23 are located the crankshaft 1, which are otherwise arranged at the respective end of the crankshaft 1 and are fixed in the side end walls of the housing, exclusively on both sides of the central crank mechanism 4, the attachment of these two Bearing points 22, 23, as can be seen from the drawing, in the illustrated embodiment at the bottom of the housing 2. This makes it possible to To build crankshaft 1 significantly shorter, since the crankshaft journal is no longer at the end provided for storage in the side end walls of the housing 2 Need to become. At the same time, the diameter of the crankshaft can be adjusted accordingly can be kept smaller, which in total also stresses the bearings 22, 23 reduced.

Der Antrieb 24 für die Kurbelwelle 1, der beim dargestellten Ausführungsbeispiel in Form eines Getriebes vorgesehen ist und sich üblicherweise an der Innenseite einer der beiden Stirnwände des Gehäuses 2 befindet, ist zwischen zwei Kurbeltrieben, im konkreten Ausführungsbeispiel zwischen dem mittleren Kurbeltrieb 4 und dem hierzu benachbarten linken Kurbeltrieb 3, angeordnet, und zwar nahe der Lagerstelle 22.The drive 24 for the crankshaft 1, which in the illustrated embodiment in Form of a gear is provided and is usually on the inside one of the two end walls of the housing 2 is located between two crank drives, in the specific embodiment between the middle crank mechanism 4 and the adjacent left crank mechanism 3, arranged near the Depository 22.

Hinsichtlich vorstehend nicht im einzelnen näher erläuterter Merkmale wird ausdrücklich auf die Ansprüche sowie auf die Zeichnung verwiesen.With regard to features not explained in detail above, is expressly referred to the claims and the drawing.

Claims (4)

Mehrfachkurbeltrieb für Arbeitsmaschinen, insbesondere für Membranpumpen, mit einer in einem Gehäuse (2) angeordneten Kurbelwelle (1), die wenigstens zwei Lagerstellen (22, 23) aufweist, über einen Antrieb (24), insbesondere ein Getriebe, antreibbar ist, und ihrerseits jeweils über einen Kurbeltrieb (3, 4, 5) eine von mehreren Kolbenstangen (18, 19, 20) der Arbeitsmaschinen antreibt,
dadurch gekennzeichnet, daß die Kurbelwelle (1) fliegend im Gehäuse (2) gelagert ist.Multiple crank drive for work machines, in particular for diaphragm pumps, with a crankshaft (1) arranged in a housing (2), which has at least two bearing points (22, 23), can be driven via a drive (24), in particular a transmission, and in each case drives one of several piston rods (18, 19, 20) of the working machines via a crank mechanism (3, 4, 5),
characterized in that the crankshaft (1) is overhung in the housing (2). Mehrfachkurbeltrieb nach Anspruch 1, dadurch gekennzeichnet, daß sich die Lagerstellen (22, 23) ausschließlich beidseits des mittleren Kurbeltriebs (4) befinden.Multiple crank drive according to claim 1, characterized in that the bearing points (22, 23) are located exclusively on both sides of the central crank drive (4). Mehrfachkurbeltrieb nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Antrieb (24) für den Mehrfachkurbeltrieb zwischen zwei Kurbeltrieben (4, 3 bzw. 4, 5) angeordnet ist.Multiple crank drive according to claim 1 or 2, characterized in that the drive (24) for the multiple crank drive is arranged between two crank drives (4, 3 or 4, 5). Mehrfachkurbeltrieb nach Anspruch 3, dadurch gekennzeichnet, daß sich der Antrieb (24) nahe einer Lagerstelle (22 bzw. 23) befindet.Multiple crank drive according to claim 3, characterized in that the drive (24) is located near a bearing point (22 or 23).
EP01110889A 2000-05-18 2001-05-04 Multiple crank drive for power machines , especially for membrane pumps Expired - Lifetime EP1156185B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10024546A DE10024546B4 (en) 2000-05-18 2000-05-18 Multiple crank drive for triplex diaphragm pumps
DE10024546 2000-05-18

Publications (3)

Publication Number Publication Date
EP1156185A2 true EP1156185A2 (en) 2001-11-21
EP1156185A3 EP1156185A3 (en) 2002-05-08
EP1156185B1 EP1156185B1 (en) 2006-12-13

Family

ID=7642645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01110889A Expired - Lifetime EP1156185B1 (en) 2000-05-18 2001-05-04 Multiple crank drive for power machines , especially for membrane pumps

Country Status (3)

Country Link
US (1) US6598493B2 (en)
EP (1) EP1156185B1 (en)
DE (2) DE10024546B4 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN106438269A (en) * 2016-09-30 2017-02-22 瑞立集团瑞安汽车零部件有限公司 Oilless air compressor transmission mechanism

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US20050150537A1 (en) * 2004-01-13 2005-07-14 Nanocoolers Inc. Thermoelectric devices
CN102425537A (en) * 2011-12-14 2012-04-25 闫鹏 Diaphragm pump
CN106762598B (en) * 2016-12-07 2019-08-13 宁波合力机泵股份有限公司 A kind of power end of plunger pump
CN113958477B (en) * 2021-10-25 2023-04-07 台州市蒙花机械有限公司 Small-size large-stroke plunger pump

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Publication number Priority date Publication date Assignee Title
US2284645A (en) * 1941-01-27 1942-06-02 Duffy Charles Hugh Air pump or compressor
DE2913997A1 (en) * 1978-04-06 1979-10-18 United Stirling Ab & Co Motor or compressor unit with three parallel crankshafts - has crankpins intercoupled by triangular yoke giving synchronised rotation in same direction

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US1994397A (en) * 1933-03-23 1935-03-12 Loveridge Claude Warren Rotary engine
US3570459A (en) * 1969-04-17 1971-03-16 Bristol Associates Inc Two-stroke cycle engine
JPH0799140B2 (en) * 1989-12-28 1995-10-25 株式会社丸山製作所 Multiple reciprocating pump
US5180346A (en) * 1991-07-22 1993-01-19 Ford Motor Company T-drive powertrain assembly for automotive vehicle with forward disposition of the axis for the forward traction wheels
US5158046A (en) * 1991-10-02 1992-10-27 Rucker Richard D Two-stroke cycle engine having linear gear drive
DE4443778A1 (en) * 1994-12-08 1996-06-20 Abel Gmbh & Co Double diaphragm pump
US6006619A (en) * 1998-04-09 1999-12-28 Gindentuller; Ilya Internal combustion engine with improved orbital crankshaft motion converter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2284645A (en) * 1941-01-27 1942-06-02 Duffy Charles Hugh Air pump or compressor
DE2913997A1 (en) * 1978-04-06 1979-10-18 United Stirling Ab & Co Motor or compressor unit with three parallel crankshafts - has crankpins intercoupled by triangular yoke giving synchronised rotation in same direction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106438269A (en) * 2016-09-30 2017-02-22 瑞立集团瑞安汽车零部件有限公司 Oilless air compressor transmission mechanism

Also Published As

Publication number Publication date
US6598493B2 (en) 2003-07-29
DE10024546A1 (en) 2001-11-29
US20010042422A1 (en) 2001-11-22
EP1156185A3 (en) 2002-05-08
DE10024546B4 (en) 2004-07-15
EP1156185B1 (en) 2006-12-13
DE50111612D1 (en) 2007-01-25

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