DE900536C - Guide and seal the piston and the piston rod in the cylinder housing, especially in hydraulic vibration dampers in motor vehicles - Google Patents

Guide and seal the piston and the piston rod in the cylinder housing, especially in hydraulic vibration dampers in motor vehicles

Info

Publication number
DE900536C
DE900536C DEH3286A DEH0003286A DE900536C DE 900536 C DE900536 C DE 900536C DE H3286 A DEH3286 A DE H3286A DE H0003286 A DEH0003286 A DE H0003286A DE 900536 C DE900536 C DE 900536C
Authority
DE
Germany
Prior art keywords
piston
piston rod
guide
motor vehicles
seal
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
DEH3286A
Other languages
German (de)
Other versions
DE1618463U (en
Inventor
Wilhelm Zenz
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.)
Hemscheidt Hermann Maschinenfabrik GmbH and Co
Original Assignee
Hemscheidt Hermann Maschinenfabrik GmbH and Co
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 Hemscheidt Hermann Maschinenfabrik GmbH and Co filed Critical Hemscheidt Hermann Maschinenfabrik GmbH and Co
Priority to DEH3286A priority Critical patent/DE900536C/en
Application granted granted Critical
Publication of DE900536C publication Critical patent/DE900536C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
    • F16J10/02—Cylinders designed to receive moving pistons or plungers

Description

Führung und Dichtung des Kolbens und der Kolbenstange im Zylindergehäuse, insbesondere bei hydraulischen Schwingungsdämpfern von Kraftfahrzeugen Die Erfindung betrifft die Führung und Dichtung des Kolbens und der Kolbenstange im Zylindergehäuse bei hydraulischen Schwingungsdämpfern von Kraftfahrzeugen und stellt eine weitere Ausbildung des Gegenstandes des Patents 877 559 zum Patent 868 393 dar. Beim Patent 868 393 ist ein sowohl als Führung wie als Dichtung dienender äußerer Kolbenmantel aus elastischem Stoff und eine in der einen Zylinderstirnwand eingesetzte elastische Büchse für die herausgeführte Kolbenstange vorgesehen. Der große Vorzug dieser Dichtführung besteht darin, daß sie Werkstoff- und Fertigungstoleranzen ausgleicht, ja sogar die im Betriebe unvermeidlichen Seitenkräfte und Durchhiegungen der Kolbenstange aufnimmt. Die gemäß dem Patent 877 559 vorgesehene Maßnahme, d,aß die zwischen dem Kolben und dem Zylinder liegende Dichtführung Ringrillen umschließt, die Luftpolster darstellen, bringt die Dichtung auf eine solche Höhe der Vollkommenheit, daß, wie Versuche festgestellt haben, der Schwingungsdämpfer nicht mehr von kreisförmigem Querschnitt zu sein braucht, was bisher der Rundbearbeitung wegen als selbstverständliche Bedingung für die Fertigung galt. Nach der Erfindung sollen die Querschnitte der aufeinander gleitenden Teile elliptisch sein oder in ähnlicher Weise von der Kreisform abweichen. Eine solche flache Formgebung erweist sich immer mehr als ein dringendes Bedürfnis, weil die Raumverhältnisse im Kraftfahrzeugbau häufig nicht gestatten, Teleskopschwingungsdämpfer von kreisförmigem Querschnitt anzubringen. Ein flacher Querschnitt der Kolbenstange bietet überdies den Vorteil, den auftretenden Seitenkräften größeren Widerstand leisten zu können.Guiding and sealing of the piston and the piston rod in the cylinder housing, in particular in hydraulic vibration dampers for motor vehicles. The invention relates to the guidance and sealing of the piston and the piston rod in the cylinder housing in hydraulic vibration dampers of motor vehicles and represents another Formation of the subject matter of patent 877 559 to patent 868 393. In the patent 868 393 is an outer piston skirt that serves as both a guide and a seal made of elastic material and an elastic material inserted in one of the cylinder front walls Bushing provided for the lead-out piston rod. The great advantage of this sealing guide consists in the fact that it compensates for material and manufacturing tolerances, even the unavoidable lateral forces and sagging of the piston rod in operation records. The measure envisaged under patent 877 559, d, ate that between the Piston and the cylinder lying sealing guide ring grooves surrounds the air cushions represent, brings poetry to such a level of perfection that how Tests have found the vibration damper no longer circular Cross-section needs to be what has been taken for granted so far because of the round machining Condition for the production was valid. According to the invention, the cross sections of the parts sliding on each other be elliptical or similarly circular in shape differ. Such a flat shape turns out to be more and more urgent Need because the space available often in automotive engineering Do not allow telescopic anti-vibration mounts with a circular cross-section. A flat cross section of the piston rod also offers the advantage of preventing the occurrence of To be able to offer greater resistance to lateral forces.

Claims (1)

PATENTANSPRUCH: Führung und Dichtung des Kolbens und der Kolbenstange im Zylindergehäuse mittels eines gleichzeitig als Führung. und Dichtung :dienend-en äußeren Kolbenmantels aus elastischem Stoff und einer in der einen Zylinderstirnwand eingesetzten elastischen Büchse für die herausgeführte Kolbenstange, insbesondere bei hydraulischen Schwingungsdämpfern von Kraftfahrzeugen, nach Patent 877 559, dadurch gekennzeichnet, daß die Querschnitte der aufeinander gleitenden Teile elliptisch sind oder in ähnlicher Weise von der Kreisform abweichen.PATENT CLAIM: Guiding and sealing of the piston and the piston rod in the cylinder housing by means of a guide at the same time. and seal: serving outer piston jacket made of elastic material and an elastic bushing inserted in the one cylinder end wall for the protruding piston rod, especially in hydraulic vibration dampers of motor vehicles, according to patent 877 559, characterized in that the cross-sections of the parts sliding on each other are elliptical or similarly deviate from the circular shape.
DEH3286A 1950-06-06 1950-06-06 Guide and seal the piston and the piston rod in the cylinder housing, especially in hydraulic vibration dampers in motor vehicles Expired DE900536C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH3286A DE900536C (en) 1950-06-06 1950-06-06 Guide and seal the piston and the piston rod in the cylinder housing, especially in hydraulic vibration dampers in motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH3286A DE900536C (en) 1950-06-06 1950-06-06 Guide and seal the piston and the piston rod in the cylinder housing, especially in hydraulic vibration dampers in motor vehicles

Publications (1)

Publication Number Publication Date
DE900536C true DE900536C (en) 1954-05-13

Family

ID=7143526

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH3286A Expired DE900536C (en) 1950-06-06 1950-06-06 Guide and seal the piston and the piston rod in the cylinder housing, especially in hydraulic vibration dampers in motor vehicles

Country Status (1)

Country Link
DE (1) DE900536C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012103619A1 (en) * 2012-04-25 2013-10-31 Druck- und Spritzgußwerk Hettich GmbH & Co. KG damper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012103619A1 (en) * 2012-04-25 2013-10-31 Druck- und Spritzgußwerk Hettich GmbH & Co. KG damper

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