DE129348C - - Google Patents

Info

Publication number
DE129348C
DE129348C DENDAT129348D DE129348DA DE129348C DE 129348 C DE129348 C DE 129348C DE NDAT129348 D DENDAT129348 D DE NDAT129348D DE 129348D A DE129348D A DE 129348DA DE 129348 C DE129348 C DE 129348C
Authority
DE
Germany
Prior art keywords
slide
piston
control device
spring
bezw
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.)
Active
Application number
DENDAT129348D
Other languages
German (de)
Publication of DE129348C publication Critical patent/DE129348C/de
Active legal-status Critical Current

Links

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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F04B39/0016—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons with valve arranged in the piston
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/005—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 changing the phase relationship of two working pistons in one working chamber or the phase-relationship of a piston and a driven distribution member

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Der Erfindungsgegenstand zeichnet sich gegenüber den bis jetzt angewendeten Druckausgleichvorrichtungen für Kompressoren und dergl. durch grofse Einfachheit aus bei gleichzeitiger Gewährleistung für möglichst vollständige Druckausgleichung der schädlichen Räume.The subject matter of the invention is distinguished from the pressure equalization devices used up to now for compressors and the like by great simplicity with simultaneous guarantee for the most complete possible Pressure equalization of the harmful spaces.

In dem getheilten cylindrischen Hohlschieber s, dessen eine Hälfte im Kolben k befestigt, während die andere Hälfte parallel zu seiner Achse verschiebbar ist, liegt eine Feder f, deren Druck etwas gröfser ist als der höchst zulässige, auf den Kolben kommende Flächendruck.In the divided cylindrical hollow slide s, one half of which is fastened in the piston k , while the other half can be displaced parallel to its axis, there is a spring f, the pressure of which is somewhat greater than the maximum permissible surface pressure on the piston.

Preist der Kolben k die Luft im Cylinder C zusammen und hat der Kolben dabei die Todtpunktstellung erreicht, so bewegt die Daumenscheibe D die Steuervorrichtung h derart, dafs der Druckbolzen d die verschiebbare Hälfte des Schiebers s einen Augenblick nach der Seite im Cylinder schiebt, auf welcher sich angesaugte Luft, also kein Ueberdruck befindet.If the piston k compresses the air in the cylinder C and the piston has reached the dead center position, the thumb disk D moves the control device h in such a way that the pressure pin d pushes the sliding half of the slide s for an instant to the side in the cylinder on which sucked in air, so there is no overpressure.

Die Luft vor dem Kolben wird deshalb durch den so geschaffenen Kanal nach der anderen Seite des Kolbens entweichen. Da jedoch die Steuerung die Schieberhälfte nur eine kurze Zeit zurückdrückt, so wird der Schieber s sofort durch die Feder f, die durch die zwangsweise Eröffnung zusammengeprefst worden ist, geschlossen und die Steuervorrichtung h durch die Feder fl in ihre alte Lage zurückgezogen. Inzwischen erreicht der Kolben die andere Todtpunktstellung und jetzt bewegt die Daumenscheibe D die Steuervorrichtung Zz1, wodurch der Druckbolzen ^1 die verschiebbare Hälfte des Schiebers nach der der früheren Bewegung entgegengesetzten Seite verschieb). Dadurch entsteht wieder ein Durchgangskanal, der den Druck aus dem schädlichen Raum vor den Kolben gelangen läfst.The air in front of the piston will therefore escape through the channel created in this way to the other side of the piston. However, since the control only pushes the slide half back for a short time, the slide s is immediately closed by the spring f, which has been compressed by the forced opening, and the control device h is retracted into its old position by the spring f l. In the meantime the piston has reached the other dead point position and now the thumb disk D moves the control device Zz 1 , whereby the pressure pin ^ 1 moves the sliding half of the slide to the side opposite to the previous movement). This creates a through-channel that allows the pressure to escape from the harmful space in front of the piston.

Claims (1)

Patent-Anspruch :
Druckausgleichvorrichtung für Kompressoren, Luftpumpen und dergl., bestehend in der Anordnung eines getheilten cylindrischen Hohlschiebers (s) im Kompressor- bezw. Luftpumpenkolben, dadurch gekennzeichnet, dafs der in seinem Hohlraum mit einer Feder (f) versehene Hohlschieber (s) bei Todtpunktstellung des Kolbens (k) durch eine von einer Steuervorrichtung (dh bezw. d1 h1j auf die verschiebbare Hälfte des Schiebers (s) in seiner Längsrichtung eingeleitete Bewegung geöffnet wird, wobei die bei der Eröffnung des Schiebers zusammengedrückte Feder den Schieber wieder schliefst, sobald die Steuervorrichtung (dh bezw. άλ hjj nicht mehr auf die verschiebbare Hälfte des Schiebers (s) einwirkt.Patent claim:
Pressure compensation device for compressors, air pumps and the like. Consisting of the arrangement of a divided cylindrical hollow slide (s) in the compressor respectively. Air pump piston, characterized in, that the in its cavity with a spring (f) provided with a hollow slide (s) at the dead point position of the piston (k) by a d by a control device (ie BEZW. 1 h 1 j to the movable half of the slide (s ) is opened in its longitudinal direction initiated movement, wherein the compressed at the opening of the slider spring Sleeping the slide as soon as the control device (ie BEZW. ά λ hjj no longer on the displaceable half of the slide (s) is applied. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT129348D Active DE129348C (en)

Publications (1)

Publication Number Publication Date
DE129348C true DE129348C (en)

Family

ID=397813

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT129348D Active DE129348C (en)

Country Status (1)

Country Link
DE (1) DE129348C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2855608A1 (en) * 1978-12-22 1980-06-26 Pierburg Gmbh & Co Kg DOUBLE ACTING VACUUM PUMP

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2855608A1 (en) * 1978-12-22 1980-06-26 Pierburg Gmbh & Co Kg DOUBLE ACTING VACUUM PUMP

Similar Documents

Publication Publication Date Title
DE19746241C2 (en) Device for closing an opening
DE2222686A1 (en) PNEUMATIC OR HYDRAULIC TOGGLE CLAMPING DEVICE, ESPECIALLY FOR CLAMPING BODY PARTS OR SIMILAR WELDABLE SHEET METAL CONSTRUCTIONS
DE1627852A1 (en) Hydropneumatic clamping cylinder
DE2228302C3 (en) Telescopic gas spring
DE3329790A1 (en) Valve support for piston compressors
DE762584C (en) Four-way valve controlled by an auxiliary valve
DE2144672A1 (en) Fluid motor
DE4027848A1 (en) PISTON PUMP
DE129348C (en)
DE2823667C2 (en) Air motor
DE2334413A1 (en) PNEUMATIC ACTUATOR
EP2728226B1 (en) Vacuum valve
DE891496C (en) Control of reciprocating machine parts driven by pressure medium, in particular of pistons in pumps operated by compressed air
DE2605758B1 (en) CONTROL VALVE FOR HYDRAULICALLY STEPPING STRUCTURE
DE1634298C3 (en) Hydraulic pile hammer
DE598406C (en) Device for buffering the impacts of impact cylinders
DE19547187C2 (en) Pneumatically actuated reciprocating machine
DE2031790A1 (en) Pneumatic actuator, in particular for opening and closing, changing and determining the opening width of windows, skylights, light domes or similar cover elements
DE77550C (en) Quadruple acting piston pump with controlled round slides
DE1301633B (en) Valve control for reversible compressed gas engines, especially rotary piston engines
DE2234986C3 (en) Pneumatic sequential control device for controlling several servomotors
DE2457092A1 (en) Rotary machine with radial vane in rotor - has single vane sealed to rotor on one side only
DE144172C (en)
DE1285322B (en) high pressure pump
DE270095C (en)