DE102015205911A1 - Deep-drawn screw sleeve for a control valve of a camshaft adjuster - Google Patents

Deep-drawn screw sleeve for a control valve of a camshaft adjuster Download PDF

Info

Publication number
DE102015205911A1
DE102015205911A1 DE102015205911.1A DE102015205911A DE102015205911A1 DE 102015205911 A1 DE102015205911 A1 DE 102015205911A1 DE 102015205911 A DE102015205911 A DE 102015205911A DE 102015205911 A1 DE102015205911 A1 DE 102015205911A1
Authority
DE
Germany
Prior art keywords
bead
control valve
central housing
camshaft adjuster
screw
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Withdrawn
Application number
DE102015205911.1A
Other languages
German (de)
Inventor
Josef Janitschek
Jürgen Weber
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Priority to DE102015205911.1A priority Critical patent/DE102015205911A1/en
Publication of DE102015205911A1 publication Critical patent/DE102015205911A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves
    • F01L2001/34433—Location oil control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2303/00—Manufacturing of components used in valve arrangements

Abstract

Vorgeschlagen ist ein Steuerventil für einen Nockenwellenversteller einer Hubkolbenbrennkraftmaschine mit einem Zentralgehäuse (1), wobei das Zentralgehäuse (1) zumindest Arbeitskammeranschlüsse (4) aufweist, mit einem im Zentralgehäuse (1) beweglich geführten federbelasteten Steuerkolben versehen ist, als Schraube mit einem Schraubkopf (3) und Schraubenschaft (2) ausgeführt und mittels Tiefziehverfahren hergestellt ist und wobei der Schraubkopf (3) einen Wulst (5) aufweist, der als Stützanschlag für den Nockenwellenversteller dient.Proposed is a control valve for a camshaft adjuster of a reciprocating internal combustion engine with a central housing (1), wherein the central housing (1) at least working chamber ports (4), with a in the central housing (1) movably guided spring-loaded control piston is provided as a screw with a screw head (3 ) and screw shank (2) is executed and manufactured by deep-drawing process and wherein the screw head (3) has a bead (5), which serves as a support stop for the camshaft adjuster.

Description

Die Erfindung bezieht sich auf ein Steuerventil für einen Nockenwellenversteller einer Hubkolbenbrennkraftmaschine mit einem Zentralgehäuse, wobei das Zentralgehäuse zumindest Arbeitskammeranschlüsse aufweist, mit einem im Zentralgehäuse beweglich geführten federbelasteten Steuerkolben versehen ist, als Schraube mit einem Schraubkopf und Schraubenschaft ausgeführt und mittels Tiefziehverfahren hergestellt ist.The invention relates to a control valve for a camshaft adjuster of a reciprocating internal combustion engine with a central housing, wherein the central housing has at least working chamber connections, is provided with a centrally guided in the housing movable spring-loaded control piston, designed as a screw with a screw head and screw shaft and manufactured by deep drawing process.

Ein derartiges Zentralgehäuse ist aus der DE 10 2012 202 520 A1 bekannt. Das Zentralgehäuse ist dabei als Befestigungsschraube mit Schraubenschaft, Gewinde und einem gebördelten Schraubkopf ausgebildet. Abgesehen davon, dass die Bördelung des Schraubkopfes aufwendig in der Herstellung ist, besteht das Problem, dass der Stützanschlag für den Nockenwellenversteller über Zug und Druck belastete Strecken geführt ist, so dass die Gefahr besteht, dass der Druckanschluss nicht dauerhaft die Belastungen aufnehmen kann. Such a central housing is from the DE 10 2012 202 520 A1 known. The central housing is designed as a fastening screw with screw shank, thread and a flared screw head. Apart from the fact that the flange of the screw head is expensive to manufacture, there is the problem that the support stop for the camshaft adjuster is guided over train and pressure loaded routes, so that there is a risk that the pressure port can not permanently absorb the loads.

Aufgabe der Erfindung ist es, das bekannte Steuerventil bzw. das Zentralgehäuse derart zu verbessern, dass ein dauerhaft belastbarer Stützanschlag gegeben ist. Dies soll mit einfachen kostengünstigen Mitteln erfolgen.The object of the invention is to improve the known control valve or the central housing such that a permanently resilient support stop is given. This should be done with simple inexpensive means.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass der Schraubkopf einen Wulst aufweist, der als Stützanschlag für den Nockenwellenversteller dient. Ein derartiger Wulst lässt sich leicht herstellen und ist in der Lage die Druckkräfte aufzunehmen. Weiterhin wird vorgeschlagen, dass der Wulst im Bereich der Wulstfalte am Auslauf zum Schraubenschaft mittels eines Schweißvorganges verstärkt ist. Die Schweißnaht kann vom Innenmantel des Zentralgehäuses aus angebracht werden. Dadurch wird eine erhöhte Festigkeit erreicht, weil die Wulstfalte in Verlängerung des Schraubenschaftes des Zentralgehäuses verstärkt ist und sich dort nicht öffnen kann.According to the invention the object is achieved in that the screw head has a bead which serves as a support stop for the camshaft adjuster. Such a bead can be easily produced and is able to absorb the pressure forces. Furthermore, it is proposed that the bead is reinforced in the region of the bead fold at the outlet to the screw shaft by means of a welding operation. The weld can be attached from the inner shell of the central housing. As a result, increased strength is achieved because the bead fold is reinforced in the extension of the screw shaft of the central housing and can not open there.

In weiterer Ausgestaltung der Erfindung wird vorgeschlagen, dass die Schenkel der Wulstfalte durch eine Laserschweißung miteinander verbunden sind. Dies kann in vorteilhafter Weise dadurch erfolgen, dass die Laserschweißung von der Außenkehle des Wulstes aus erfolgt und bis zum daneben angeordneten Schenkel der Wulstfalte reicht. Dies ist dann besonders günstig, wenn der Durchmesser des Zentralgehäuses klein gewählt ist und der Zugang von innen zum Schweißen schwierig ist.In a further embodiment of the invention it is proposed that the legs of the bead fold are connected to each other by a laser welding. This can be done in an advantageous manner in that the laser welding takes place from the outer throat of the bead and extends to the adjacent leg of the bead fold. This is particularly favorable if the diameter of the central housing is chosen to be small and access from the inside to the welding is difficult.

Die Erfindung ist in den Zeichnungen beschrieben:The invention is described in the drawings:

1 zeigt einen Längsschnitt durch ein Zentralgehäuse, 1 shows a longitudinal section through a central housing,

2 zeigt einen Wulstabschnitt in vergrößertem Maßstab gemäß einem Kreis Z in 1, 2 shows a bead portion on an enlarged scale according to a circle Z in 1 .

3 zeigt einen Längsschnitt durch das Zentralgehäuse mit modifizierter Verschweißung und 3 shows a longitudinal section through the central housing with modified welding and

4 zeigt einen Wulstabschnitt in vergrößertem Maßstab gemäß den Kreis Z in 3. 4 shows a bead portion on an enlarged scale according to the circle Z in 3 ,

In den 1 bis 4 ist, soweit im Einzelnen dargestellt, mit 1 ein Zentralgehäuse bezeichnet, das einen Schraubenschaft 2 und einen Schraubkopf 3 aufweist. In der Wand des Schraubenschaftes 2 sind Arbeitskammeranschlüsse 4 vorgesehen. Am Rande des Schraubkopfes 3 ist durch Tiefziehen bzw. Stauchen ein Wulst 5 hergestellt, der zur Verstärkung der Wulstfalte 6 im Inneren eine Schweißnaht 7 aufweist, die die Wulstfalte verschließt. In den 3 und 4 ist eine Laserschweißnaht 8 vorgesehen, die von der Außenkehle des Wulstes 5 aus erfolgt ist und eine solche Tiefe aufweist, dass sie bis zum entfernten Schenkel der Wulstfalte 6 reicht.In the 1 to 4 is, as far as shown in detail, with 1 a central housing denotes a screw shaft 2 and a screw head 3 having. In the wall of the screw shaft 2 are working chamber connections 4 intended. At the edge of the screw head 3 is by deep drawing or upsetting a bead 5 made to reinforce the bead fold 6 inside a weld 7 which closes the bead fold. In the 3 and 4 is a laser weld 8th provided by the outer throat of the bead 5 out from and has such a depth that they are up to the distal leg of the bead fold 6 enough.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Zentralgehäuse center housing
22
Schraubenschaft screw shaft
33
Schraubkopf screw head
44
Arbeitskammeranschlüsse Chamber Connections
55
Wulst bead
66
Wulstfalte Wulstfalte
77
Schweißnaht Weld
88th
Laserschweißnaht laser weld

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES 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 of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • DE 102012202520 A1 [0002] DE 102012202520 A1 [0002]

Claims (4)

Steuerventil für einen Nockenwellenversteller einer Hubkolbenbrennkraftmaschine mit einem Zentralgehäuse (1), wobei das Zentralgehäuse (1) zumindest Arbeitskammeranschlüsse (4) aufweist, mit einem im Zentralgehäuse (1) beweglich geführten federbelasteten Steuerkolben versehen ist, als Schraube mit einem Schraubkopf (3) und Schraubenschaft (2) ausgeführt und mittels Tiefziehverfahren hergestellt ist, dadurch gekennzeichnet, dass der Schraubkopf (3) einen Wulst (5) aufweist, der als Stützanschlag für den Nockenwellenversteller dient. Control valve for a camshaft adjuster of a reciprocating internal combustion engine with a central housing ( 1 ), wherein the central housing ( 1 ) at least working chamber connections ( 4 ), with one in the central housing ( 1 ) movably guided spring-loaded control piston is provided as a screw with a screw head ( 3 ) and screw shaft ( 2 ) and manufactured by deep-drawing process, characterized in that the screw head ( 3 ) a bead ( 5 ), which serves as a support stop for the camshaft adjuster. Steuerventil nach Anspruch 1, dadurch gekennzeichnet, dass der Wulst (5) im Bereich einer Wulstfalte (6) mittels einer Schweißnaht (7) verstärkt ist. Control valve according to claim 1, characterized in that the bead ( 5 ) in the region of a bead fold ( 6 ) by means of a weld ( 7 ) is reinforced. Steuerventil nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Schenkel der Wulstfalte (6) durch eine Laserschweißung miteinander verbunden sind.Control valve according to one of claims 1 or 2, characterized in that the legs of the bead fold ( 6 ) are connected to each other by a laser welding. Steuerventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Laserschweißnaht (8) von der Außenkehle des Wulstes (5) aus erfolgt und bis zum abgewandten Schenkel reicht.Control valve according to one of the preceding claims, characterized in that the laser weld seam ( 8th ) from the outer throat of the bead ( 5 ) out and extends to the opposite leg.
DE102015205911.1A 2015-04-01 2015-04-01 Deep-drawn screw sleeve for a control valve of a camshaft adjuster Withdrawn DE102015205911A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102015205911.1A DE102015205911A1 (en) 2015-04-01 2015-04-01 Deep-drawn screw sleeve for a control valve of a camshaft adjuster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015205911.1A DE102015205911A1 (en) 2015-04-01 2015-04-01 Deep-drawn screw sleeve for a control valve of a camshaft adjuster

Publications (1)

Publication Number Publication Date
DE102015205911A1 true DE102015205911A1 (en) 2016-10-06

Family

ID=56937083

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102015205911.1A Withdrawn DE102015205911A1 (en) 2015-04-01 2015-04-01 Deep-drawn screw sleeve for a control valve of a camshaft adjuster

Country Status (1)

Country Link
DE (1) DE102015205911A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012202520A1 (en) 2012-02-20 2013-08-22 Schaeffler Technologies AG & Co. KG Central valve for a camshaft adjuster

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012202520A1 (en) 2012-02-20 2013-08-22 Schaeffler Technologies AG & Co. KG Central valve for a camshaft adjuster

Similar Documents

Publication Publication Date Title
DE102008056203A1 (en) Multi-part piston for an internal combustion engine and method for its production
EP1680256A1 (en) Method for producing a piston for an internal combustion engine
DE102016005352A1 (en) Annular filter element, in particular for gas filtration
DE102015102066A1 (en) Central actuator for a Schwenkmotorversteller a camshaft
DE112015002795T5 (en) Hydraulic cylinder, its manufacturing process and clutch or brake control system with this cylinder
DE102012208591B4 (en) Control valve for a hydraulic control device for the variable adjustment of the timing of gas exchange valves to internal combustion engines
EP2634385B1 (en) Adjustable Camshaft
DE102012220830B4 (en) Control valve for a hydraulic device with a replaceable hydraulic unit
DE102014207194A1 (en) High-pressure fuel pump, with an outlet valve with a valve ball and a valve body
DE102013209926A1 (en) Adjustable damping valve device for vibration damper, has valve portion that is fluid-communicated with between pressurized surfaces which are axially spaced, so that valve poriton is axially pressure-balanced
DE102016214403A1 (en) Central valve for a camshaft adjuster of a reciprocating internal combustion engine
DE102015205911A1 (en) Deep-drawn screw sleeve for a control valve of a camshaft adjuster
DE102015213562A1 (en) Camshaft adjuster with check valves
DE102014214383A1 (en) Hydraulic valve clearance compensation element for internal combustion engines
DE102008060069A1 (en) Hydraulic directional valve
EP2484944A3 (en) Valve housing body
DE102012014192A1 (en) Piston e.g. single-part piston for e.g. diesel engine of passenger car, has cooling passage provided with passage wall adjacent to ring portion, and annular component provided in region of wall and comprising edge that projects into passage
DE102010040329A1 (en) Pump element of piston pump used in vehicle brake system, has valve structure that is pushed on the valve seat by biasing structure that is supported by the valve housing
DE102013222829A1 (en) Valve tappet for a valve train of an internal combustion engine
DE102017119891A1 (en) Piston, consisting of an inner part and an outer part
DE202016100438U1 (en) vibration
DE102010031037A1 (en) Vibration damper, has valves movable by pressure in operating chambers against force of springs in closing position, designed as seat valves and arranged within hollow piston rod, and sleeve fixed within hollow piston rod
DE102015217750A1 (en) Extension for a vibration damper
DE102015214380A1 (en) Anti-rotation bracket for a hydraulic lash adjuster
DE102014210365A1 (en) Central valve for a camshaft adjuster of a reciprocating internal combustion engine

Legal Events

Date Code Title Description
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee