DE1071495B - - Google Patents
Info
- Publication number
- DE1071495B DE1071495B DENDAT1071495D DE1071495DA DE1071495B DE 1071495 B DE1071495 B DE 1071495B DE NDAT1071495 D DENDAT1071495 D DE NDAT1071495D DE 1071495D A DE1071495D A DE 1071495DA DE 1071495 B DE1071495 B DE 1071495B
- Authority
- DE
- Germany
- Prior art keywords
- piston
- motor vehicle
- engaged
- clutch
- spring
- 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.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 241001061260 Emmelichthys struhsakeri Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0262—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/20—Accumulator cushioning means
- F15B2201/21—Accumulator cushioning means using springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/41—Liquid ports
- F15B2201/413—Liquid ports having multiple liquid ports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/415—Gas ports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/415—Gas ports
- F15B2201/4155—Gas ports having valve means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2708/00—Control devices for speed-changing geared mechanisms, e.g. specially adapted couplings for synchronising devices, devices to simplify control, control of auxiliary gearboxes
- F16H2708/02—Control devices for speed-changing geared mechanisms, e.g. specially adapted couplings for synchronising devices, devices to simplify control, control of auxiliary gearboxes only the toothed wheels remain engaged
- F16H2708/06—Control devices for speed-changing geared mechanisms, e.g. specially adapted couplings for synchronising devices, devices to simplify control, control of auxiliary gearboxes only the toothed wheels remain engaged the control being hydraulic or pneumatic
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Description
DEUTSCHESGERMAN
Die Erfindung betrifft eine hydraulische Schalteinrichtung für Geschwindigkeitswechselgetriebe von Kraftfahrzeugen mit durch Servomotoren einrückbaren Schaltkupplungen, deren Betätigungsflüssigkeit durch eine von der Brennkraftmaschine des Kraftfahrzeuges angetriebene Pumpe zu einem Flüssigkeitsspeicher mit eienm darin fliegend angeordneten, federbelasteten Kolben gefördert wird, aus dem sie mittels des Kolbens nach dem Servormotor der einzurückenden Kupplung getrieben werden kann.The invention relates to a hydraulic switching device for speed change transmissions from Motor vehicles with clutches that can be engaged by servomotors, their actuating fluid by a pump driven by the internal combustion engine of the motor vehicle to a fluid reservoir with an overhung, spring-loaded piston from which it is conveyed can be driven by means of the piston after the servo motor of the clutch to be engaged.
Die Kupplungen von Schalteinrichtungen solcher Art können gemeinhin nur eingerückt werden, wenn die Brennkraftmaschine des Kraftfahrzeuges läuft und die Flüssigkeitspumpe antreibt. Eine zum Stillstand gebrachte Brennkraftmaschine muß also erst angelassen werden, ehe sich eine derartige Kupplung einrücken läßt. Im allgemeinen erfolgt das Wiederanlassen der Brennkraftmaschine mittels eines von einer Batterie gespeisten Elektromotors. Ist diese Batterie erschöpft oder versagt der Elektromotor, so ao muß das Kraftfahrzeug, wenn andere Mittel zum Anlassen seiner Brennkraftmaschine fehlen, angeschleppt oder angeschoben werden. Hierzu ist es jedoch notwendig, eine der hydraulisch betätigten Kupplungen einzurücken. Dieses Einrücken einer Kupplung ist as aber deswegen nicht möglich, weil die Flüssigkeitspumpe keinen Antrieb von der Brennkraftmaschine erhält. v The clutches of switching devices of this type can generally only be engaged when the internal combustion engine of the motor vehicle is running and driving the liquid pump. An internal combustion engine that has been brought to a standstill must therefore first be started before such a clutch can be engaged. In general, the internal combustion engine is restarted by means of an electric motor fed by a battery. If this battery is exhausted or if the electric motor fails, the motor vehicle must be towed or pushed if there are no other means of starting its internal combustion engine. To do this, however, it is necessary to engage one of the hydraulically operated clutches. However, this engagement of a clutch is not possible because the liquid pump does not receive any drive from the internal combustion engine. v
Aufgabe der Erfindung ist, eine Schalteinrichtung zu schaffen, bei der eine der Kupplungen eingerückt werden kann, auch wenn die Brennkraftmaschine des Kraftfahrzeuges die Flüssigkeitspumpe nicht antreibt.The object of the invention is to create a switching device in which one of the clutches is engaged can be, even if the internal combustion engine of the motor vehicle does not drive the liquid pump.
Die Erfindung besteht in einer vom Fahrer des Kraftfahrzeuges lösbaren Sperrvorrichtung für den in dem Flüssigkeitsspeicher unter der Wirkung der Antriebsfeder stehenden Kolben, durch die der Kolben normalerweise in einer Stellung gehalten wird, in der die Antriebsfeder vorgespannt ist.The invention consists in a detachable locking device for the driver of the motor vehicle in the fluid reservoir under the action of the drive spring piston through which the piston normally held in a position in which the drive spring is biased.
In der Zeichnung ist der Gegenstand der Erfindung in einem Ausführungsbeispiel schematisch veranschaulicht. In the drawing, the subject matter of the invention is illustrated schematically in one embodiment.
Der FLüssigkeitsspeicher a der Vorrichtung zur Notbetätigung einer Kupplung besteht aus einem
beiderseits abgeschlossenen Zylinder, aus einem darin fliegend angeordneten Kolben h, einer zwischen dem
Zylinderdeckel und dem Kolben h angeordneten starken Antriebsfeder t sowie aus einem auf dem Zylinder
axial gleitender Steuerschieber»». In den Zylinder mündet eine Flüssigkeitsleitung b, durch die hindurch
mittels einer von der Brennkraftmaschine des Kraft- s° fahrzeuges angetriebenen Pumpe c Flüssigkeit über
ein Rückschlagventil e gefördert wird. Auf der anderen Seite zweigt von dem Zylinder eine Flüssigkeitsleitung
V ab, die über ein Rückschlagventil / zu Hydraulisdie Sclialteinriditung
für GesAvdndigkeitswechselgetriebe
von Kraftfahrzeugen
mit durch Servomotoren
einrückbaren SchaltkupplungenThe fluid reservoir a of the device for emergency actuation of a clutch consists of a cylinder closed on both sides, an overhung piston h, a strong drive spring t arranged between the cylinder cover and the piston h , and a control valve sliding axially on the cylinder »». A liquid line b opens into the cylinder, through which liquid is conveyed via a check valve e by means of a pump c driven by the internal combustion engine of the motor vehicle. On the other side, a fluid line V branches off from the cylinder, which via a non-return valve / to the hydraulic valve line
for speed change gearboxes
of motor vehicles
with by servomotors
engageable clutches
Anmelder:Applicant:
The Rover Company Limited,
Solihull, Warwickshire (Großbritannien)The Rover Company Limited,
Solihull, Warwickshire (UK)
Vertreter: Dipl.-Ing. W. A. Becker, Patentanwalt,
Berlin-Charlottenburg 9, Wundtstr. 16Representative: Dipl.-Ing. WA Becker, patent attorney,
Berlin-Charlottenburg 9, Wundtstr. 16
Beanspruchte Priorität:
Großbritannien vom 27. Juni 1955Claimed priority:
Great Britain June 27, 1955
Arthur Goddard, Solihull, Warwickshire
(Großbritannien),
ist als Erfinder genannt wordenArthur Goddard, Solihull, Warwickshire
(Great Britain),
has been named as the inventor
einem hydraulischen Servomotor d für eine der Schaltkupplungen des Kraftfahrzeuggetriebes führt. Das Rückschlagventil / kann vom Fahrer durch Druck auf einen Stößel g geöffnet werden.leads a hydraulic servomotor d for one of the clutches of the motor vehicle transmission. The check valve / can be opened by the driver by pressing a plunger g .
Der Kolben h ist mit einer Ringnut; versehen, in die eine Anzahl von Kugeln oder anderen Sperrstücken k eingreifen, die ihrerseits in in der Wandung des Zylinders gleichmäßig über eine Querschnittsringfläche verteilt angeordnete Bohrungen gehalten sind. Der Eingriff der Sperrstücke k in die Ringnut j des Kolbens h wird dabei durch einen auf dem Zylinder gleitend angeordneten Steuerschieber tn bewirkt, solange dieser durch die Schraubenfeder 0 gegen den auf dem Zylinder α vorgesehenen Bund η gedrückt wird.The piston h has an annular groove; provided, in which a number of balls or other locking pieces k engage, which in turn are held in bores arranged in the wall of the cylinder evenly distributed over an annular cross-sectional area. The engagement of the locking pieces k in the annular groove j of the piston h is brought about by a control slide tn slidingly arranged on the cylinder as long as it is pressed by the helical spring 0 against the collar η provided on the cylinder α.
Tritt der eingangs erwähnte Notfall ein, so öffnet der Fahrer das Rückschlagventil / durch Druck auf den Stößel g und betätigt sodann den Steuerschieber m mittels eines Hand- oder Fußhebels/) so, daß die in diesem vorgesehene Ringnut q in eine Stellung unmittelbar gegenüber den Kugeln oder Sperrstücken k gelangt. Diese geben dann dem von der Antriebsfeder t auf den Kolben h ausgeübten Druck nach und treten aus der Ringnut / des Kolbens heraus in die Ringnut q If the emergency mentioned occurs, the driver opens the check valve / by pressing the plunger g and then actuates the control slide m by means of a hand or foot lever /) so that the annular groove q provided in it is in a position directly opposite the balls or locking pieces k arrives. These then give way to the pressure exerted on the piston h by the drive spring t and emerge from the annular groove / piston into the annular groove q
909 M9/346909 M9 / 346
Claims (1)
Deutsche Patentschriften Nr. 501 806, 646 103,
352, 922 507;Considered publications:
German patent specifications No. 501 806, 646 103,
352, 922 507;
Publications (1)
Publication Number | Publication Date |
---|---|
DE1071495B true DE1071495B (en) | 1959-12-17 |
Family
ID=596161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT1071495D Pending DE1071495B (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1071495B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2642804A1 (en) * | 1976-09-23 | 1978-03-30 | Daimler Benz Ag | AUTOMATIC GEAR CHANGE GEAR WITH A SECONDARY SERVO POWER GENERATOR FOR THE EMERGENCY SUPPLY OF SERVO POWERED UNITS OF THE GEAR CONTROL AND SHIFTING |
-
0
- DE DENDAT1071495D patent/DE1071495B/de active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2642804A1 (en) * | 1976-09-23 | 1978-03-30 | Daimler Benz Ag | AUTOMATIC GEAR CHANGE GEAR WITH A SECONDARY SERVO POWER GENERATOR FOR THE EMERGENCY SUPPLY OF SERVO POWERED UNITS OF THE GEAR CONTROL AND SHIFTING |
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