CN102003434B - Be with the hydraulic unit of at least two pressure zoness of different and at least one functional element - Google Patents
Be with the hydraulic unit of at least two pressure zoness of different and at least one functional element Download PDFInfo
- Publication number
- CN102003434B CN102003434B CN201010267705.1A CN201010267705A CN102003434B CN 102003434 B CN102003434 B CN 102003434B CN 201010267705 A CN201010267705 A CN 201010267705A CN 102003434 B CN102003434 B CN 102003434B
- Authority
- CN
- China
- Prior art keywords
- section
- hydraulic unit
- functional element
- pressure
- groove
- 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 - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 239000002131 composite material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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
- F15B5/00—Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0672—Leakage or rupture protection or detection
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
- G01L19/147—Details about the mounting of the sensor to support or covering means
Abstract
The present invention relates to the hydraulic unit of a kind of band at least two pressure zoness of different and at least one functional element.Hydraulic unit (10) has the different region (12 of at least two pressure, 14) and at least one functional element (18), this functional element is passed described at least two regions (12, 14) the gauge section (16) separated, wherein said gauge section (16) comprises sealing section (20), sealing section utilize around surface of contact (34) abut in described functional element (18), wherein in described surface of contact (34), there is at least one groove (40), this groove is by these two regions (12, 14) connect.
Description
Technical field
The present invention relates to a kind of by claim 1 hydraulic unit as described in the preamble.
Background technique
The hydraulic unit with two pressure zoness of different is open by market.DE102006045162A1 describes a kind of hydraulic manifold block for automatic gearbox, in the region of valve seat, wherein arrange the lip ring that at least one surrounds valve body.
In addition, known by market, pressure transducer is integrated in hydraulic unit.The gauge section of hydraulic unit has boring for this reason, and columniform element such as pressure sensor tube is directed through this boring.At this, pressure sensor tube does not need the cross section filling up boring completely, but allows annular space open wide.Hydraulic unit can be ventilated by this annular space.
Summary of the invention
Technical problem of the present invention is solved by hydraulic unit according to claim 1 by a kind of.Favourable expansion design provides in the dependent claims.In addition, the feature wanted of overstating to invention is arranged in following explanation and accompanying drawing, and no matter these features are individualisms or become various combination, all most important to the present invention, without the need to again explicitly pointing out.
The advantage had by parts of the present invention is, the leakage of the hydraulic oil undesirably occurred when running is dropped to bottom line.Reduce the energy ezpenditure of the oil hydraulic pump producing pressure texture thus.Pressure sensor tube and the diameter tolerance of boring in gauge section are also reduced causing the impact of the cross section ventilating and thus leak or eliminate completely.In addition, groove size and thus leak all temperature independent.
The present invention is based on such understanding, that is, the sealing of hydraulic unit (continues) requirement that ventilation possibility is two contradictions with automatically.Although there is the viscosity that the manufacturing tolerances of related elements, temperature fluctuation or hydraulic oil change, especially itself inevitably leaks and keeps very little by this.For this reason, the present invention advises a kind of sealing section, it with around surface of contact abut in functional element.At this, have at least one groove in surface of contact, described groove connects the different region of two pressure.According to the present invention, replace the simple annular space of sealing function and ventilation function being joined together, these functions are separated.At this, by by around surface of contact abut in hermetically in functional element and realize sealing.In addition, at least one groove for ventilation purpose by two of hydraulic unit regions with predetermined and irrelevant mode couples together with multiple external boundary conditions.
One expansion design in suggestion, exist multiple around surface of contact on distribute arrange groove.First the advantage of multiple groove is, each groove can have a less cross section, therefore in this position, the sealing intensity of section, rigidity and thus sealing be only subject to impact slightly.
A kind of design proposal regulation of the present invention, groove has rectangle or semicircular cross section.Limit the cross section of groove thus especially well, and Operational Limits is corresponding less on the impact of leaking.Equally, when sealing section and being expanded by functional element, a little distortion is produced with rectangle or semicircular cross section.
A kind of specially suitable embodiment of the present invention is, sealing section be designed to pipe joint shape and be formed in gauge section base portion place and with utilizing surface of contact spring (federelastisch) abut in functional element.Sealing section thus can by simply and manufacture well while excellent sealing.
When sealing section and having in the end in its distally than it at the material thickness that proximal end place is less, better by device effect of the present invention.Sealing section can be manufactured simply in this way, the such as demoulding from die casting mould, and on its extension, have adaptive rigidity or elasticity respectively.This is also applicable to be applied to the possible moment of flexure on sealing section.Functional element is accurately guided thus in sealing section, thus realizes good sealing function.
Subproposal, sealing section extend in the higher region of pressure.Sealing is improved by being additionally pressed in functional element by on-load pressure by sealing section.
Particularly advantageously, sealing section composite is made in the present invention.With Metal Phase ratio, composite is usually more cheap, and can manufacture more simply.In addition, the general elasticity of composite material components is larger.
One application regulation of the present invention, functional element is made with metal at least partly, especially pressure transducer.Metallic surface can especially evenly and with lower surface roughness manufacture.Therefore, it is possible to together with sealing section of the present invention, reach extra high sealing.
Accompanying drawing explanation
Following reference accompanying drawing illustrates exemplary implementation of the present invention.In accompanying drawing:
Fig. 1 is the sectional drawing of the first form of implementation of the hydraulic unit of band pressure transducer;
Fig. 2 is the second form of implementation, sectional drawing along the line II-II in Fig. 1; And
Fig. 3 is the sectional drawing of the third form of implementation similar with Fig. 2.
Embodiment
Even if the element that function is suitable and parameter also use identical reference character in all of the figs in different forms of implementation.
Fig. 1 partial cross sectional views (longitudinal section) shows hydraulic unit 10.It mainly comprises first area 12, second area 14 and is in the gauge section 16 between these two regions 12 and 14, there is different pressure in described two regions.Functional element 18 passes gauge section 16 along the Vertical direction in accompanying drawing.For this reason, gauge section 16 has a sealed department section 20, in sealing portion section 20 lower half portion in its accompanying drawing, surround functional element 18 along its circumference.Gauge section 16 is fixed in a unspecified housing department section 22, wherein, may be formed at the gap between gauge section 16 and housing department section 22 and seal by the second area 14 of O shape ring 24 opposing hydraulic parts 10.Arrow 26 represents pressure direction, and wherein, the pressure in current second area 14 is higher than the pressure in first area 12.
Functional element 18 comprises the pressure transducer 28 of band pressure sensor tube 30.The first area 12 of the outside confining pressure sensor 28 of the lid 32 shown in accompanying drawing top, hydraulic unit 10 and gauge section 16.Substantially be all rotational symmetric to the vital element of function of the present invention in Fig. 1.
Can see, functional element 18 enters second area 14 from first area 12 through gauge section 16, wherein, is designed with a surface of contact 34 in the region of sealing section 20.Described surface of contact flatly abuts on pressure sensor tube 30.Be arranged in top in the accompanying drawings and the conical groove 36 extended simplifies the installation of pressure sensor tube 30 at gauge section 16.Low groove 38 is supplied to the profile of sealing section 20 pipe joint shape.
Can see a passage shape groove 40 extended vertically in surface of contact 34, the cross section of described groove is current rectangular.Form the connection between first area 12 and second area 14 by groove 40, the second area 14 with elevated pressures can be ventilated by this connection.Can see in addition, sealing section 20 has than material thickness less in its proximal end 44 in its distal end 42.Gauge section 16 is made with composite in the present example.
The sealing section 20 of pipe joint shape is formed in base portion (the not marking reference character) place of gauge section 16.When not yet introducing pressure sensor tube 30, sealing section 20 has one slightly than the internal diameter little at proximal end place at distal end place.When importing pressure sensor tube 30, distal end elasticity expands.Surface of contact 34 is in this way to radially towards pressure sensor tube 30 pretension, and this causes good sealing.As shown in Figure 2, sealing section 20 stretches into second area 14, and the low groove 38 of ring cavity shape belongs to second area.Therefore in groove 38, have higher hydraulic pressure equally, sealing section 20 thus additional geocentric vertical is applied on pressure sensor tube 30 inwardly.This enhance sealing effect.
Fig. 2 shows the axial section along Fig. 1 center line II-II, but is another kind of form of implementation.Can see, in the form of implementation shown in Fig. 2, no longer only having one, but altogether be provided with four and be evenly distributed in the axial notch 40 placed in surface of contact 34, these grooves also have semicircular cross section.
Fig. 3 shows the form of implementation that again change the same with Fig. 2, and wherein, be with the difference of Fig. 2, axial notch 40 has the cross section of rectangle.
Claims (8)
1. a hydraulic unit (10), there is the region (12 that at least two pressure is different, 14) and at least one functional element (18), this functional element is passed described at least two regions (12, 14) the gauge section (16) separated, it is characterized by, described gauge section (16) comprises sealing section (20), sealing section utilize around surface of contact (34) abut in described functional element (18), wherein, at least one groove (40) is there is in described surface of contact (34), this groove is by these two regions (12, 14) connect, wherein said sealing section (20) is designed to pipe joint shape and is formed in the base portion place of described gauge section (16) and abuts in described functional element (18) with utilizing described surface of contact (34) spring.
2. by hydraulic unit according to claim 1 (10), it is characterized by, there is multiple groove (40) that upper distribution is arranged around described surface of contact (34).
3., by the hydraulic unit (10) that one of aforementioned claim is described, it is characterized by, described groove (40) has rectangle or semicircular cross section.
4., by hydraulic unit according to claim 1 (10), it is characterized by, described sealing section (20) has than the material thickness less at its proximal end (44) place at its distal end (42) place.
5., by the hydraulic unit (10) described in claim 1 or 4, it is characterized by, described sealing section (20) extend in the higher region of pressure (14).
6., by hydraulic unit according to claim 1 (10), it is characterized by, described sealing section (20) is made with composite.
7., by hydraulic unit according to claim 1 (10), it is characterized by, described functional element (18) at least part of metal is made.
8., by hydraulic unit according to claim 7 (10), it is characterized by, described functional element (18) is pressure transducer (28; 30).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910028999 DE102009028999A1 (en) | 2009-08-28 | 2009-08-28 | Hydraulic component for automatic gearbox of motor vehicle, has sealing sector including peripheral contact surface supported against functional element in elastic manner, where surface has recess that connects different pressure zones |
| DE102009028999.2 | 2009-08-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102003434A CN102003434A (en) | 2011-04-06 |
| CN102003434B true CN102003434B (en) | 2016-02-17 |
Family
ID=43524803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010267705.1A Expired - Fee Related CN102003434B (en) | 2009-08-28 | 2010-08-27 | Be with the hydraulic unit of at least two pressure zoness of different and at least one functional element |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102003434B (en) |
| DE (1) | DE102009028999A1 (en) |
| FR (1) | FR2949519B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015226610A1 (en) * | 2015-12-23 | 2017-06-29 | Robert Bosch Gmbh | Housing component with a hydraulic line |
| DE102015226608A1 (en) * | 2015-12-23 | 2017-06-29 | Robert Bosch Gmbh | Housing component with a hydraulic line |
| DE102021118601A1 (en) | 2021-07-19 | 2023-01-19 | Fte Automotive Gmbh | Pistons, gear selectors and gear shifting |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2228153Y (en) * | 1995-03-31 | 1996-05-29 | 詹丽华 | Structure-improved oil regulator of damping hydraulic cylinder |
| CN2232505Y (en) * | 1995-02-24 | 1996-08-07 | 王增江 | Air-liquid damping cylinder |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209285A (en) * | 1977-11-09 | 1980-06-24 | The Richardson Company | Unitary pump packing |
| US5299917A (en) * | 1993-02-16 | 1994-04-05 | Pioneering Concepts Incorporated | Evacuation pump system with check valves for both rigid and flexible containers |
| US5449278A (en) * | 1994-11-14 | 1995-09-12 | Lin; Chi-So | Double action piston having plural annular check valves |
| DE19612964A1 (en) * | 1996-04-01 | 1997-10-02 | Bosch Gmbh Robert | Pressure sensor and method for manufacturing a pressure sensor |
| US5681154A (en) * | 1997-01-06 | 1997-10-28 | Yang; Hsi-Kung | Air pump with dual air intakes |
| CN2410455Y (en) * | 2000-01-24 | 2000-12-13 | 詹丽华 | Damping hydraulic cylinder |
| CN2481889Y (en) * | 2001-06-05 | 2002-03-13 | 陈颖锋 | Three-stroke two-stage buffer hydraulic cylinder |
| US20040028545A1 (en) * | 2002-08-06 | 2004-02-12 | Ta-Chin Wang | Cylinder assembly for a mini air compressor |
| CN2851679Y (en) * | 2005-09-30 | 2006-12-27 | 北京市液压技术研究所 | Hydraulic cylinder with mechanical lock |
| CN2900887Y (en) * | 2006-04-27 | 2007-05-16 | 中冶连铸技术工程股份有限公司 | Static pressure oil film guide hydraulic cylinder |
| CN100373059C (en) * | 2006-04-27 | 2008-03-05 | 中冶连铸技术工程股份有限公司 | Hydraulic cylinder with static pressure support guide |
| DE102006045162A1 (en) | 2006-09-25 | 2008-04-03 | Robert Bosch Gmbh | hydraulic block |
| TWM315778U (en) * | 2007-02-08 | 2007-07-21 | Ying-Je Huang | Air pump |
-
2009
- 2009-08-28 DE DE200910028999 patent/DE102009028999A1/en not_active Withdrawn
-
2010
- 2010-08-26 FR FR1056779A patent/FR2949519B1/en not_active Expired - Fee Related
- 2010-08-27 CN CN201010267705.1A patent/CN102003434B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2232505Y (en) * | 1995-02-24 | 1996-08-07 | 王增江 | Air-liquid damping cylinder |
| CN2228153Y (en) * | 1995-03-31 | 1996-05-29 | 詹丽华 | Structure-improved oil regulator of damping hydraulic cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2949519A1 (en) | 2011-03-04 |
| FR2949519B1 (en) | 2015-08-14 |
| CN102003434A (en) | 2011-04-06 |
| DE102009028999A1 (en) | 2011-03-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20170827 |