DE477092C - Cylinder for air pump - Google Patents

Cylinder for air pump

Info

Publication number
DE477092C
DE477092C DEH118760D DEH0118760D DE477092C DE 477092 C DE477092 C DE 477092C DE H118760 D DEH118760 D DE H118760D DE H0118760 D DEH0118760 D DE H0118760D DE 477092 C DE477092 C DE 477092C
Authority
DE
Germany
Prior art keywords
cylinder
air pump
piston
sealant
pump
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.)
Expired
Application number
DEH118760D
Other languages
German (de)
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.)
MARGARETE HEINZE GEB JANDER
Original Assignee
MARGARETE HEINZE GEB JANDER
Publication date
Priority to DEH118760D priority Critical patent/DE477092C/en
Application granted granted Critical
Publication of DE477092C publication Critical patent/DE477092C/en
Expired 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
    • F04B33/00—Pumps actuated by muscle power, e.g. for inflating
    • F04B33/005—Pumps actuated by muscle power, e.g. for inflating specially adapted for inflating tyres of non-motorised vehicles, e.g. cycles, tricycles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Description

Zylinder für Luftpumpe Ein stark empfundener Übelstand bei der Benutzung von Pumpen, z. B. Kraftwagen- und Fahrradluftpumpen, besteht darin, daß das Kolbenleder oder anderer Dichtungsstoff, welcher zur Erzielung ausreichender Dichtigkeit eng an die Zylinderwand angedrückt sein muß, auch bei Nichtbenutzung der Pumpe in gleicher Lage gehalten wird. Der in neuem Zustande elastische Stoff ermüdet dadurch allmählich, der Druck gegen die Zylinderwand läßt nach, und der Kolben wird schließlich undicht.Cylinder for air pump A very perceived drawback when using it of pumps, e.g. B. car and bicycle air pumps, consists in the fact that the piston leather or other sealant, which is tight to achieve sufficient tightness must be pressed against the cylinder wall, even when the pump is not in use Location is held. The fabric, which is elastic in its new condition, gradually tires, the pressure against the cylinder wall decreases and the piston eventually leaks.

Die Erfindung bezweckt, den nachgiebigen Dichtungsstoff des Kolbens im Ruhezustande der Pumpe vom Druck gegen die Zylinderwand zu entlasten und demselben (Leder, Gummi o. dgl.) Gelegenheit zu geben, sich ungehindert etwas ausdehnen zu können. Hierdurch wird erreicht, daß er sich bei Benutzung stets in gut dichtendem Zustande befindet.The invention aims at the resilient sealant of the piston to relieve the pressure against the cylinder wall in the idle state of the pump and the same (Leather, rubber, etc.) To give the opportunity to expand something unhindered can. This ensures that it is always in good sealing condition when in use Conditions.

Um dies herbeizuführen, erhält der Zylinder gemäß der Erfindung an der Stelle, an welcher sich der Kolben im Ruhezustande befindet, eine Ausbuchtung nach außen. Diese kann so ausgeführt sein, daß der Dichtungsstoff, im Bestreben, seine natürliche ebene Lage einzunehmen, auch in der Ausbuchtung noch dichtend anliegt. In der Zeichnung ist die Erfindung schematisch dargestellt.In order to bring about this, the cylinder according to the invention receives on the point at which the piston is at rest, a bulge outward. This can be designed in such a way that the sealant, in an effort to to take its natural level position, still tightly fitting in the bulge. The invention is shown schematically in the drawing.

Abb. r zeigt den Dichtungsstoff des Kolbens in enger Anlehnung an die Zylinderwand b, während aus der Abb. 2 die Lage zu entnehmen ist, in der sich der Dichtungsstoff befindet, wenn er sich zur Entspannung lose in die Ausbuchtung a des Zylinders b hineinlegt.Fig.r shows the sealant of the piston closely related to the cylinder wall b, while Fig. 2 shows the position in which the sealant is when it is loosely inserted into the bulge a of the cylinder b for relaxation.

Als Wirkung der Erfindung bleibt der Dichtungsstoff, welcher bei Nichtbenutzung der Pumpe nur wenig gespannt ist, für die Benutzung gut dichtend, wodurch die Betriebsbereitschaft der Pumpe erhalten und ihre Lebensdauer wesentlich erhöht wird. Die Erfindung stellt also eine erhebliche Verbesserung der bisher gebräuchlichen Pumpen dar.As an effect of the invention, the sealant remains, which when not in use the pump is only slightly tensioned, sealing well for use, which means that it is ready for operation of the pump and its service life is significantly increased. The invention represents So it represents a considerable improvement of the pumps that have been used up to now.

Claims (1)

PATENTANSPRUCH: Zylinder für Pumpen, insbesondere für Kraftwagen- und Fahrradluftpumpen, dadurch gekennzeichnet, daß der Pumpenzylinder an der Stelle, an der sich der Kolben bei Nichtbenutzung befindet, eine Ausbuchtung nach außen besitzt, in die sich der nachgiebige Kolbendichtungsstoff zum Entspannen lose hineinlegt.PATENT CLAIM: Cylinders for pumps, especially for motor vehicle and bicycle air pumps, characterized in that the pump cylinder at the point on which the piston is when not in use, a bulge to the outside in which the resilient piston sealant is loosely placed to relax.
DEH118760D Cylinder for air pump Expired DE477092C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH118760D DE477092C (en) Cylinder for air pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH118760D DE477092C (en) Cylinder for air pump

Publications (1)

Publication Number Publication Date
DE477092C true DE477092C (en) 1929-05-31

Family

ID=7173167

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH118760D Expired DE477092C (en) Cylinder for air pump

Country Status (1)

Country Link
DE (1) DE477092C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2985359A (en) * 1956-06-29 1961-05-23 Robert H Hunter Hand pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2985359A (en) * 1956-06-29 1961-05-23 Robert H Hunter Hand pump

Similar Documents

Publication Publication Date Title
DE477092C (en) Cylinder for air pump
DE716359C (en) Composite flexible skin for the elastic closure of rooms, especially acid pumps
DE838980C (en) Ring sleeve of larger diameter, especially for hydraulic brakes
AT122355B (en) Rotary valve seal for internal combustion engines, pumps, compressors, etc. like
DE869739C (en) Bottom valve for master pressure cylinder, especially for vehicle brakes
DE503859C (en) Packing ring
DE640965C (en) Bathing cap
AT129465B (en) Sealing between two adjacent machine parts oscillating around a common axis.
DE705756C (en) Pleated sleeve made of rubber, preferably for sealing the swinging semi-axles of motor vehicles against the drive housing
DE637361C (en) Device for inflating the pneumatic tires of bicycles
DE416364C (en) Valve device for inflating pneumatic tires
DE646450C (en) Valve for an air hose or the like.
DE633590C (en) Piston with sealing sleeve for hydraulic devices of all kinds
DE1953040U (en) SEALING DEVICE, IN PARTICULAR FOR BALL JOINTS.
DE1854437U (en) FILTERS SWITCHED ON IN A LIQUID CIRCUIT.
DE485873C (en) Tubeless air pump for bicycles
AT106286B (en) Air pumps for automobiles.
AT236421B (en) Filter that can be switched into a liquid circuit
DE2700366A1 (en) Compression loss tester for IC engines - applies smoke-charged air through sparking plug hole
DE821006C (en) Air hose for bicycles and motorcycles
DE893718C (en) Method and device for determining leaks in the cylinders of piston engines
DE518467C (en) High pressure piston for gas pumps
DE270075C (en)
AT203303B (en)
DE464619C (en) Automatic air pump