EP2488731A1 - Volume accumulator - Google Patents
Volume accumulatorInfo
- Publication number
- EP2488731A1 EP2488731A1 EP10781450A EP10781450A EP2488731A1 EP 2488731 A1 EP2488731 A1 EP 2488731A1 EP 10781450 A EP10781450 A EP 10781450A EP 10781450 A EP10781450 A EP 10781450A EP 2488731 A1 EP2488731 A1 EP 2488731A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide housing
- indentation
- separating element
- camshaft
- guide
- 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.)
- Granted
Links
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
-
- 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
-
- 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
- F01L2001/34446—Fluid accumulators for the feeding circuit
-
- 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
- F15B2201/30—Accumulator separating means
- F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
-
- 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
- F15B2201/405—Housings
-
- 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
- F15B2201/60—Assembling or methods for making accumulators
- F15B2201/605—Assembling or methods for making housings therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7781—With separate connected fluid reactor surface
- Y10T137/7784—Responsive to change in rate of fluid flow
- Y10T137/7792—Movable deflector or choke
Definitions
- the indentation can take a variety of forms. Conceivable, for example, embodiments in which a slot is introduced into the guide housing, which is arranged completely in a plane perpendicular to the direction of displacement of the piston. Subsequently, the indentation is introduced in the region of the slot in the guide housing.
- the spring element 35 is supported on the one hand on a spring bearing 39 (FIG. 4), which is formed on the end of the guide housing 33 remote from the camshaft adjuster 11, and on the other hand on the bottom 25 of the separating element 34.
- the spring bearing 39 is formed as a radial indentation 47 of the guide housing 33.
- a first slot 40 is inserted into the cylindrical guide housing 33, which extends in the circumferential direction of the guide housing 33.
- the guide housing 33 is deformed radially inwardly in the region between the first slot 40 and the end remote from the camshaft.
- the depth of the indentation 47 produced thereby is selected so that the spring element 35 bears against the open end of the spring bearing 39 even at maximum spring eccentricity, which has been separated from the guide housing 33 by the first slot 40.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009049459A DE102009049459A1 (en) | 2009-10-15 | 2009-10-15 | volume storage |
PCT/EP2010/065402 WO2011045369A1 (en) | 2009-10-15 | 2010-10-14 | Volume accumulator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2488731A1 true EP2488731A1 (en) | 2012-08-22 |
EP2488731B1 EP2488731B1 (en) | 2014-09-03 |
Family
ID=43500227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20100781450 Not-in-force EP2488731B1 (en) | 2009-10-15 | 2010-10-14 | Volume accumulator |
Country Status (5)
Country | Link |
---|---|
US (1) | US8707998B2 (en) |
EP (1) | EP2488731B1 (en) |
CN (1) | CN102549242B (en) |
DE (1) | DE102009049459A1 (en) |
WO (1) | WO2011045369A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010018203A1 (en) | 2010-04-26 | 2011-10-27 | Schaeffler Technologies Gmbh & Co. Kg | Pressure accumulator arrangement for a camshaft adjusting system |
DE102011075537A1 (en) * | 2011-05-10 | 2012-11-15 | Schaeffler Technologies AG & Co. KG | Reciprocating internal combustion engine with camshaft adjusting device |
DE102012201558B4 (en) * | 2012-02-02 | 2017-09-07 | Schaeffler Technologies AG & Co. KG | Design of a tank connection in a camshaft adjuster with volume memory |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8430562D0 (en) | 1984-12-04 | 1985-01-09 | Carpenter & Paterson Ltd | Spring support device |
DE3705642A1 (en) | 1986-07-02 | 1988-01-14 | Man Nutzfahrzeuge Gmbh | ENERGY STORAGE AND DELIVERY DEVICE |
DE3633836C1 (en) * | 1986-10-04 | 1988-03-31 | Ford Werke Ag | Temperature-compensated control valve, in particular an accumulator valve for hydraulic control of motor vehicle transmissions |
DE3941241C2 (en) * | 1989-12-14 | 2002-03-21 | Continental Teves Ag & Co Ohg | Piston pressure accumulator, in particular for brake systems controlled by drive slip, and a switching arrangement therefor |
DE4234217C2 (en) | 1992-10-10 | 1996-07-11 | Hemscheidt Fahrwerktech Gmbh | Hydropneumatic suspension system |
JP3212384B2 (en) * | 1992-11-11 | 2001-09-25 | 株式会社ニチリン | accumulator |
DE19529277A1 (en) | 1995-08-09 | 1997-02-13 | Bayerische Motoren Werke Ag | Method for operating a hydraulically controlled / regulated camshaft adjusting device for internal combustion engines |
FR2740528B1 (en) | 1995-10-30 | 1999-09-17 | Bernard Claude Andre Francois | ASSEMBLY DEVICE FOR ELASTIC MOBILE LOAD SUPPORTS |
EP2320037B8 (en) | 1996-03-28 | 2013-11-13 | Aisin Seiki Kabushiki Kaisha | Camshaft phasing device |
DE19725240A1 (en) | 1997-06-14 | 1998-12-17 | Itt Mfg Enterprises Inc | Pressure medium storage for hydraulic sets of vehicle electronic braking systems |
US5996632A (en) * | 1998-12-14 | 1999-12-07 | Aeroquip Corporation | Pressure relief adapter |
DE102005015262A1 (en) * | 2005-04-04 | 2006-10-05 | Robert Bosch Gmbh | Pressurized medium accumulator for electronically slip-regulated vehicle brake assembly, has piston with gasket that divides accumulator into separate chambers, where piston is single-piece chipless component made of sheet metal material |
DE102007041552A1 (en) | 2007-08-31 | 2009-03-05 | Schaeffler Kg | Device for the variable adjustment of the timing of gas exchange valves of an internal combustion engine |
US9038668B2 (en) * | 2010-03-16 | 2015-05-26 | Gm Global Technology Operations, Llc | Accumulator assembly |
-
2009
- 2009-10-15 DE DE102009049459A patent/DE102009049459A1/en not_active Withdrawn
-
2010
- 2010-10-14 CN CN201080046222.7A patent/CN102549242B/en not_active Expired - Fee Related
- 2010-10-14 WO PCT/EP2010/065402 patent/WO2011045369A1/en active Application Filing
- 2010-10-14 EP EP20100781450 patent/EP2488731B1/en not_active Not-in-force
- 2010-10-14 US US13/501,319 patent/US8707998B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2011045369A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN102549242B (en) | 2014-04-09 |
US20120199230A1 (en) | 2012-08-09 |
EP2488731B1 (en) | 2014-09-03 |
DE102009049459A1 (en) | 2011-04-21 |
WO2011045369A1 (en) | 2011-04-21 |
US8707998B2 (en) | 2014-04-29 |
CN102549242A (en) | 2012-07-04 |
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