WO2015074656A1 - Kolben-zylindereinheit die eine kunststofffeder enthält - Google Patents
Kolben-zylindereinheit die eine kunststofffeder enthält Download PDFInfo
- Publication number
- WO2015074656A1 WO2015074656A1 PCT/DE2014/200621 DE2014200621W WO2015074656A1 WO 2015074656 A1 WO2015074656 A1 WO 2015074656A1 DE 2014200621 W DE2014200621 W DE 2014200621W WO 2015074656 A1 WO2015074656 A1 WO 2015074656A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- spring
- cylinder
- cylinder unit
- round
- Prior art date
Links
Classifications
-
- 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
- F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
- F15B7/06—Details
- F15B7/08—Input units; Master units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/16—Master control, e.g. master cylinders
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1476—Special return means
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
- F16D2025/081—Hydraulic devices that initiate movement of pistons in slave cylinders for actuating clutches, i.e. master cylinders
-
- 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
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
- F16F1/3665—Wound springs
Definitions
- the invention relates to a piston-cylinder unit, such as a master cylinder or a
- Slave cylinder in particular for a pressure medium actuating device of a motor vehicle.
- Piston-cylinder units are widely used in the art.
- clutches or gears are actuated by means of pressure medium actuation devices, in which a piston-cylinder unit are used as master cylinder or slave cylinder.
- a piston-cylinder unit are used as master cylinder or slave cylinder.
- a piston is arranged axially displaceable manner, where actuated by the varying volume for the pressure medium actuation.
- a spring is provided which acts on the piston in the direction of the starting position.
- a magnetic or inductive sensor is used in the rule. This is located outside the cylinder and detects a magnetic or metallic element on the piston inside the cylinder.
- An embodiment of the invention relates to a piston-cylinder unit having a cylinder with a cylinder chamber and arranged in the cylinder chamber axially displaceable piston, wherein within the cylinder space a spring is arranged, which at an axial end portion of the cylinder and an axial end portion of the piston in axial Supported direction and the piston, wherein the spring consists of a non-magnetic and non-electrically conductive material.
- the spring can be arranged in the cylinder space, wherein a sensor element for detecting the piston position can be provided on the piston, without this being disturbed by a metallic or magnetic spring element.
- the spring is advantageously designed to save space and arranged in a protected space, so that they would not be exposed to external influences.
- the spring consists of a plastic material. As a result, the production is simplified and inexpensive.
- the spring consists of a fiber-reinforced plastic material, such as a glass fiber reinforced or carbon fiber reinforced plastic material.
- a fiber-reinforced plastic material such as a glass fiber reinforced or carbon fiber reinforced plastic material.
- Injection molded part is made. As a result, the production is guaranteed particularly favorable.
- the spring has turns which have a round and / or angular cross section and / or have different cross sections in different regions of the spring. As a result, the spring stiffness of the spring or its spring characteristic can be optimized.
- the spring have at least one of its end regions turns with a round or not round shape, which serve for the positive connection of the spring to the cylinder or the piston.
- the spring can be connected to the piston and / or to the cylinder, which also defines the positioning of the spring during operation, so that the spring is clearly defined by its characteristic.
- the cylinder and / or the piston prefferably have a round or noncircular receptacle in the cut, into which openings of an end region of the spring engage.
- the turns, which engage in the receptacle have a diameter which is smaller than other turns of the spring. This facilitates the assembly of the spring.
- Figure 1 is an illustration of a piston-cylinder unit according to the invention.
- the piston-cylinder unit 1 shows a piston-cylinder unit 1 with a cylinder 2 with a cylinder chamber 3.
- the cylinder chamber 3 is cylindrical and receives a piston 4 axially displaceable.
- the cylinder 2 is formed in two parts and has a first cylinder wall element 5 and a second cylinder wall element 8, which are interconnected.
- the piston 4 is cylindrical and has at its one end a piston rod 6 which is connected to the piston 4 in order to displace the piston 4 by means of an actuator, not shown.
- the actuator can be, for example, a pedal or an electromotive actuator or the like.
- a spring 7 is arranged, which is formed with a plurality of Wnditch 9.
- the turns 9 at the two end regions 10, 11 have a smaller diameter than the walls in the middle region 12.
- the walls in the end region 10, 11 are advantageously not circular in cross-section, but instead have, for example, an oval or angular cross-section.
- the cylinder 2 has a receptacle 13, in which engage the Wnditch in the end portion 10.
- the piston 4 has a receptacle 14, in which the Wnditch in the end region 1 1 engage.
- the receptacles are advantageously also not round in section, so that there is a positive connection between spring and cylinder or spring and piston.
- the spring 7 is made according to the invention of a non-magnetic and non-electrically conductive material.
- the spring is advantageously made of a plastic, in particular made of a glass fiber reinforced and / or carbon fiber reinforced plastic. It is particularly advantageous if the spring is produced in an injection molding or casting process, in particular in an injection molding process. It is also advantageous if the spring has turns which have a round and / or square, such as square or rectangular cross-section.
- the cross section of a turn over the length of the spring may be the same, such as round or square or the cross section may also vary over the length of the spring to cause a modulation of the characteristic.
- the shape of the cross section may change or the diameter of the cross section.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Springs (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112014005364.3T DE112014005364A5 (de) | 2013-11-25 | 2014-11-07 | Kolben-Zylindereinheit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013224019.8 | 2013-11-25 | ||
DE102013224019 | 2013-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015074656A1 true WO2015074656A1 (de) | 2015-05-28 |
Family
ID=52282363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2014/200621 WO2015074656A1 (de) | 2013-11-25 | 2014-11-07 | Kolben-zylindereinheit die eine kunststofffeder enthält |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112014005364A5 (de) |
WO (1) | WO2015074656A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111749995A (zh) * | 2020-07-07 | 2020-10-09 | 东风柳州汽车有限公司 | 一种离合分泵组件、机械式离合分离系统以及汽车 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2125129A (en) * | 1936-02-24 | 1938-07-26 | Detroit Hydrostatic Brake Corp | Hydraulic brake actuator |
EP1338489A1 (de) * | 2002-02-25 | 2003-08-27 | ROBERT BOSCH GmbH | Hauptbremszylinder für elektrohydraulisches Bremssystem |
DE102011082639A1 (de) * | 2010-10-11 | 2012-05-24 | Schaeffler Technologies Gmbh & Co. Kg | Hauptzylinder |
US20120200147A1 (en) * | 2011-02-07 | 2012-08-09 | Mitsuhiro Endo | Booster and brake apparatus using the same |
DE102012217702A1 (de) * | 2011-10-10 | 2013-04-11 | Schaeffler Technologies AG & Co. KG | Hydraulikzylinder mit zumindest einem Federelement |
-
2014
- 2014-11-07 WO PCT/DE2014/200621 patent/WO2015074656A1/de active Application Filing
- 2014-11-07 DE DE112014005364.3T patent/DE112014005364A5/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2125129A (en) * | 1936-02-24 | 1938-07-26 | Detroit Hydrostatic Brake Corp | Hydraulic brake actuator |
EP1338489A1 (de) * | 2002-02-25 | 2003-08-27 | ROBERT BOSCH GmbH | Hauptbremszylinder für elektrohydraulisches Bremssystem |
DE102011082639A1 (de) * | 2010-10-11 | 2012-05-24 | Schaeffler Technologies Gmbh & Co. Kg | Hauptzylinder |
US20120200147A1 (en) * | 2011-02-07 | 2012-08-09 | Mitsuhiro Endo | Booster and brake apparatus using the same |
DE102012217702A1 (de) * | 2011-10-10 | 2013-04-11 | Schaeffler Technologies AG & Co. KG | Hydraulikzylinder mit zumindest einem Federelement |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111749995A (zh) * | 2020-07-07 | 2020-10-09 | 东风柳州汽车有限公司 | 一种离合分泵组件、机械式离合分离系统以及汽车 |
Also Published As
Publication number | Publication date |
---|---|
DE112014005364A5 (de) | 2016-08-11 |
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