DE102007016519A1 - Axial piston hydraulic motor, has high pressure and low pressure connections separated from each other from side of formation of rotatable part of valve plate to another side of formation of non-rotatable part of valve plate - Google Patents
Axial piston hydraulic motor, has high pressure and low pressure connections separated from each other from side of formation of rotatable part of valve plate to another side of formation of non-rotatable part of valve plate Download PDFInfo
- Publication number
- DE102007016519A1 DE102007016519A1 DE200710016519 DE102007016519A DE102007016519A1 DE 102007016519 A1 DE102007016519 A1 DE 102007016519A1 DE 200710016519 DE200710016519 DE 200710016519 DE 102007016519 A DE102007016519 A DE 102007016519A DE 102007016519 A1 DE102007016519 A1 DE 102007016519A1
- Authority
- DE
- Germany
- Prior art keywords
- valve plate
- formation
- rotatable part
- rotatable
- low pressure
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
- F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F03C1/0644—Component parts
- F03C1/0655—Valve means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
- F03C1/0678—Control
- F03C1/0692—Control by changing the phase relationship between the actuated element and the distribution means, e.g. turning the valve plate; turning the swash plate
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
I. Technischer HintergrundI. Technical Background
Die Drehmomentanpassung herkömmlicher Axialkolbenmaschinen basiert auf Änderung des Verdrängungsvolumens, durch Winkelverstellung der Schrägscheibe. Diese „Verdrängungssteuerung" kostet viel Kraft und benötigt eine schwere hydraulische Vorrichtung, die entsprechend langsam reagiert, verlustreich ist und teuer kommt. Zudem führt ein ungünstiger Winkel zu Wirkungsgradverlusten, wodurch eine Momentänderung um mehr als Faktor 3 problematisch wird.The Torque adaptation of conventional axial piston machines based on change in the displacement volume, by angular adjustment of the swash plate. This "displacement control" costs a lot of power and needs a heavy hydraulic device, which responds slowly, is lossy and expensive. In addition, an unfavorable angle leads to loss of efficiency, which a moment change by more than a factor of 3 is problematic becomes.
Diese Nachteile gibt es nicht mit „Zeitsteuerung" bei gleichem Verdrängungsvolumen: Das Drehmoment lässt sich ändern durch die Zylinderkammer während der Ölaufnahme länger oder kürzer mit dem Hoch- und dem Niederdruckanschluß zu verbinden. Die diesbezüglichen Vorschläge betrafen bislang aber in erster Linie Pumpen, und sind nur bedingt, nach dem Motto „umgekehrte Pumpen", auf Motoren übertragbar:
- 1. So beschreibt bereits die
FR 1303925 - 2. In der
WO 97/31185 - 3. Allerdings handelt die WO primär vom Austausch von Druck gegen Strom in einem Transformator: Ein Eingangsstrom mit bestimmten Druck wird in einen Ausgangsstrom mit anderem Druck umgewandelt, wobei Ein- und Ausgangsdruck sich unabhängig voneinander ändern können. Die Ventilplatte hat drei Öffnungen, mit Anschluß respektive zur Pumpe, Tank und Verbraucher. Drehung der Platte verbindet die Zylinderkammer kurzer oder länger mit diesen Anschlüssen, und variiert den Ausgangsdruck zwischen Eingangsdruck und Tankdruck. Der Nachteil: Ein Motor braucht einen Transformator dazu.
- 4. Die
US 6176684
- 1. That's how the
FR 1303925 - 2. In the
WO 97/31185 - 3. However, the WO is primarily about the exchange of pressure against electricity in a transformer: An input current with a certain pressure is converted into an output current with a different pressure, whereby input and output pressures can change independently. The valve plate has three openings, with connection respectively to the pump, tank and consumer. Rotation of the plate connects the cylinder chamber shorter or longer with these ports, and varies the outlet pressure between inlet pressure and tank pressure. The disadvantage: A motor needs a transformer to do so.
- 4. The
US 6176684
Für die Zuführung bzw. Transformierung hydraulischer Energie bietet Zeitsteuerung also wesentliche Vorteile gegenüber Verdrängungssteuerung. Für den Gebrauch dieser Energie jedoch sind die bisherigen Konzepte keine ernstzunehmende Alternative für den Axialkolben-Verstellmotor.For the supply or transformation of hydraulic energy So timing offers significant advantages over Displacement control. For the use of this Energy, however, the previous concepts are not serious Alternative for the axial piston adjusting motor.
II. Darstellung der ErfindungII. Presentation of the invention
Es ist deshalb Aufgabe der Erfindung, einen Axialkolbenmotor ohne die Nachteile sowohl herkömmlicher Verstellmotoren wie bekannter Zeitsteuerungen zu entwickeln – einen Axialkolbenmotor also mit konstantem Verdrängungsvolumen und dennoch weit verstellbarem Drehmoment, verlustarm, mit wahlfreier Drehrichtung und ohne extra Druckanschluß.It It is therefore an object of the invention to provide an axial piston motor without the Disadvantages of both conventional adjusting motors as well as known To develop timers - an axial piston motor So with constant displacement volume and yet far adjustable torque, low loss, with optional direction of rotation and without extra pressure connection.
Die Aufgabe wird in dem Anspruch gelöst. Demnach ist nicht die Ventilplatte gegenüber der Schrägscheibe (oder umgekehrt), sondern die eine Trennbrücke zwischen den Ventilöffnungen gegenüber der anderen in Bezug auf der Rotorachse drehbar. Die Lösung lässt sich anhand einiger Realisierungsbeispiele erläutern.The Task is solved in the claim. Accordingly, it is not the valve plate opposite the swash plate (or vice versa), but the one separating bridge between the valve openings rotatable relative to the other with respect to the rotor axis. The solution is based on a few implementation examples explain.
In
den
In
den
Für
alle Varianten gilt, daß die größte Drehmomentspreizung
erreicht wird, wenn sich die Druckanschlüsse (
Die
Erfindung ist anwendbar in Motoren mit Schrägscheibe, mit
Schrägachse und nach dem Floating-Cup-Prinzip, wie beispielsweise
in der
Die
Die
zweite
Ein
(nicht gezeichneter) Sensor an der Abtriebswelle (
Vollständigkeitshalber
sei bemerkt, daß die vorbeschriebene Erfindung auch als
Pumpe anwendbar ist, indem mechanische Energie über die
Achse (
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - FR 1303925 [0002] - FR 1303925 [0002]
- - WO 97/31185 [0002] - WO 97/31185 [0002]
- - US 6176684 [0002] - US 6176684 [0002]
- - NL 1019736 [0009] NL 1019736 [0009]
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710016519 DE102007016519A1 (en) | 2007-04-05 | 2007-04-05 | Axial piston hydraulic motor, has high pressure and low pressure connections separated from each other from side of formation of rotatable part of valve plate to another side of formation of non-rotatable part of valve plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710016519 DE102007016519A1 (en) | 2007-04-05 | 2007-04-05 | Axial piston hydraulic motor, has high pressure and low pressure connections separated from each other from side of formation of rotatable part of valve plate to another side of formation of non-rotatable part of valve plate |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007016519A1 true DE102007016519A1 (en) | 2008-10-09 |
Family
ID=39736221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710016519 Withdrawn DE102007016519A1 (en) | 2007-04-05 | 2007-04-05 | Axial piston hydraulic motor, has high pressure and low pressure connections separated from each other from side of formation of rotatable part of valve plate to another side of formation of non-rotatable part of valve plate |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007016519A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1303925A (en) | 1961-10-18 | 1962-09-14 | Nat Union Electric Corp | Suction or delivery pump with variable flow rates |
WO1997031185A1 (en) | 1996-02-23 | 1997-08-28 | Innas Free Piston B.V. | Pressure transformer |
US6176684B1 (en) | 1998-11-30 | 2001-01-23 | Caterpillar Inc. | Variable displacement hydraulic piston unit with electrically operated variable displacement control and timing control |
NL1019736C1 (en) | 2002-01-12 | 2003-07-15 | Innas Bv | Hydraulic device such as a hydraulic transformer, pump or motor, has rotor ports that can rotate along housing or second face plate, that is positioned in housing and may be part of housing to form a seal |
-
2007
- 2007-04-05 DE DE200710016519 patent/DE102007016519A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1303925A (en) | 1961-10-18 | 1962-09-14 | Nat Union Electric Corp | Suction or delivery pump with variable flow rates |
WO1997031185A1 (en) | 1996-02-23 | 1997-08-28 | Innas Free Piston B.V. | Pressure transformer |
US6176684B1 (en) | 1998-11-30 | 2001-01-23 | Caterpillar Inc. | Variable displacement hydraulic piston unit with electrically operated variable displacement control and timing control |
NL1019736C1 (en) | 2002-01-12 | 2003-07-15 | Innas Bv | Hydraulic device such as a hydraulic transformer, pump or motor, has rotor ports that can rotate along housing or second face plate, that is positioned in housing and may be part of housing to form a seal |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |