CN114041024A - Valve plate with valve plate - Google Patents
Valve plate with valve plate Download PDFInfo
- Publication number
- CN114041024A CN114041024A CN202080048150.3A CN202080048150A CN114041024A CN 114041024 A CN114041024 A CN 114041024A CN 202080048150 A CN202080048150 A CN 202080048150A CN 114041024 A CN114041024 A CN 114041024A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve plate
- region
- plate
- bending
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1066—Valve plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Check Valves (AREA)
Abstract
The invention relates to a valve plate (1) for installation in a reciprocating piston compressor, comprising a support region (8) and a valve region (2a, 2b), wherein the valve region (2a, 2b) comprises a movable valve plate (5) having a valve seat, by means of which a through-channel (3) for a controlled medium in a valve support plate (9) can be closed, wherein the valve region (2a, 2b) acts on the support region (8) of the valve plate via a web, so that the valve plate (5) is fixed relative to the support region (8). The valve regions (2a, 2b) have a web region (13) which is fixed by means of a web (7) relative to the support region (8), wherein the valve plate (5) is flexibly connected to the web region (13).
Description
The present invention relates to an automatic valve for a reciprocating piston compressor. Such reciprocating piston compressors are sufficiently known in various embodiments of the prior art, for example from DE 102014111526 a1, wherein, for a reciprocating piston compressor, two functional valves, namely a valve which allows air to flow into the working volume and a valve which conveys compressed air out of the working volume (or stroke space), are mainly distinguished.
Reciprocating piston compressors are used in motor vehicles, for example, to provide compressed air for service brakes and/or air suspensions which are operated by compressed air. Ambient air is drawn in by the compressor, compressed and cleaned of foreign elements, such as oil and water, in other components of the compressed air supply before being used in the load.
The invention only considers valves that enable air to flow into the working volume. Valves used for this purpose are basically divided into two configurations. A valve is therefore known, for example, from DE 102008052744B 3, in which the movement of the closure flap is limited by a stop or stop surface. The pumping process can be described as follows:
the pressure difference sets the valve plate into an opening movement, wherein the movable section of the valve plate bends and, upon reaching the stopper, it impinges on the stopper as the lug on the valve plate enters the stopper recess.
Such a collision on the stopper recess is desirable because it is a stroke limitation. However, it has been found that, in particular at higher rotational speeds (and consequently higher air throughputs), greater wear can occur. This wear occurs both on the suction valve and on the stopper recess.
Valves are also known in which the closure flap, as described in EP 0604385 a1, can oscillate freely and no end stop is provided for limiting the movement. In this configuration, the valve plate is free to move downward during suction, and thus the design is relatively critical.
Failure of the valve plate, i.e., breakage at any portion of the valve plate, directly results in compressor failure and the broken portion may damage the compressor.
The object of the invention is to provide a valve plate with a valve plate which is improved over the prior art.
This object is achieved according to the invention by a design corresponding to claim 1. Further advantageous features of the design according to the invention are given in the dependent claims.
According to the invention, a valve plate for installation in a reciprocating piston compressor is proposed, which has a support region and a valve region, wherein the valve region has a movable valve plate, which has a valve seat, by means of which a through-passage for a controlled medium in the valve support plate can be closed, wherein the valve region acts on the support region of the valve plate via a web, so that the valve plate is fixed relative to the support region.
For improvement, it is proposed according to the invention that the valve region has a web region, by means of which the web region is fixed relative to the carrier region, wherein the valve plate is flexibly connected to the web region.
The valve seat is the area on the valve plate that provides the sealing surface by which the through-passage is sealed.
In order to achieve a targeted flexibility, a bending region along the bending axis can be provided between the valve plate and the web region. By the design of the bending zone with respect to the bending axis, the bending behavior and the bending load in the bending zone can be positively influenced.
When the piston is used in a reciprocating piston compressor, a bending load in the bending zone is created in the case of a movement of the piston in the displacement volume and a negative pressure in the displacement volume, as a result of which medium, in particular air, is sucked from the suction space through the inlet opening in the valve plate. The inflowing air acts on the valve flap and bends it into the working volume. Depending on the design of the bending zone, the opening angle can be varied, whereby the passage cross section for the controlled medium is increased and the flow characteristics for the medium are improved in order to reduce the passage resistance of the medium through the valve.
In a preferred embodiment of the valve plate or of the valve region, it can be provided that a web region is provided which has two bending regions along the bending axes (or along a respective bending axis), wherein a valve plate is flexibly connected to each bending region. In this design, the valve plate is preferably designed symmetrically.
Furthermore, it can be provided that the bending region comprises two or more bending sections, by means of which the valve plate is flexibly connected to the web region. The size and position of the bending section can very advantageously influence the bending force in the bending section and thus also determine the bending.
Furthermore, one or more outlet openings for the controlled medium can be provided in the valve region. The compressed air is conveyed out of the working volume again through the outlet opening.
It is also advantageous if the valve plate has a sealing contour on at least one side, by means of which the valve region is separated from the other functional regions. The valve plate can thus perform further functions, such as a fluid-tight connection of the passages leading out of the compressor from the crankcase region to the cylinder head region or a fluid-tight separation of the chambers in the valve carrier plate from the chambers or passages in the crankcase. The sealing contour can be a contour embossed into the valve plate or also a sealing quality applied to the valve plate.
Another design may be a valve plate with two or more valve areas, such as for a two-stage reciprocating piston compressor.
The valve plate as described above can advantageously be used as a suction valve in a compressor, wherein the valve plate in the compressor is clamped between a valve carrier plate having through passages for controlled medium to and from the working volume and a crankcase.
Furthermore, the valve carrier plate and the crankcase have passages and/or spaces, wherein the valve plate has functional areas, by means of which the passages and/or spaces are connected to one another in a fluid-tight manner or are separated from one another in a fluid-tight manner. For example, air and cooling water for cooling the air may flow through the channels and/or spaces.
Further advantageous features of the invention are explained with reference to the figures according to embodiments. The features mentioned can advantageously be implemented not only in the combinations shown but also individually in combination with one another. In the drawings, individually:
FIG. 1 shows a valve plate according to the present invention
Fig. 2 shows a cross-sectional view of a valve plate incorporated into a compressor.
Fig. 1 shows a valve plate 1 with two valve areas 2a, 2b for a two-stage reciprocating piston compressor. The design or contour of the valve regions 2a, 2b is adapted to the requirements of the respective stage by way of example and can also be designed differently.
In this figure the valve plate 1 is shown viewed from the direction of the displacement volume, wherein the first compressor stage can be seen in the upper part and the second compressor stage in the lower part. Furthermore, a kidney-shaped inlet channel 3 (dashed line) is shown in the region of the valve plate 5.
The valve plate 1 is divided into a plurality of regions, namely a carrier region 8, valve regions 2a, 2b and functional regions 15a to 15 d. For the functional area, each part will not be individually explained. The main function of these functional areas is either to connect passages and spaces in the crankcase 10 and/or the valve carrier plate 9 or to separate passages and spaces in the crankcase 10 and/or the valve carrier plate 9 from each other. The individual regions 2a, 2b, 8 or the functional regions 15a to 15d are separated from one another by a sealing contour or also by an applied sealing quality.
Each valve region 2a, 2b can be subdivided into three further regions, namely a web region 13 and two flap regions 14, which are separated by the bending axis 6, wherein the regions lying next to one another along the bending axis are also referred to as bending regions. The main bending of the valve plate 5 takes place in the bending zone, wherein the valve plate 5 forms a bending curve when bent in the bending zone.
In order to adjust the bending force required for forming, the bending area is divided into two or more bending sections, by means of which the valve plate 5 is flexibly connected to the web region 13. The bent section thus forms a flexible web.
The web region 13 is connected to the carrier region 8 via the web 7. Since the valve plate 1 and thus the support region 8 are clamped in a fixed manner in the installed state, the web region 13 with the webs 7 is likewise fixed. This means that the web region remains substantially fixed in its position even when the valve plate 5 is bent.
Furthermore, openings are provided in the valve regions 2a, 2b, which openings form outlet channels 4, through which compressed air can flow out of the working volume 11 again.
Fig. 2 shows a sectional view of the valve plate 1 incorporated in the compressor. In this case, this generally means a solution comprising a suction valve without a stopper, which is connected to the valve plate 1 via a connection point, thus forming a so-called material-mated joint.
The valve plate 1 is clamped between the valve carrier plate 8 and the crankcase 10. Not visible here is the sealing contour, but said sealing contour is applied at the respective point, so that a fluid-tight shielding of the individual functional areas is achieved.
In addition, two valve plate functional states, i.e. suction and compression, are shown. One is a basic state in which the inlet channel 3 is closed by the valve plate 5, and one is an open state in which the valve plate 5 is bent in the direction of the piston by the negative pressure generated by the piston and the pressure difference created thereby.
Other components are not shown or described as they are not important to an understanding of the present invention.
List of reference numerals
1 valve plate
2a, b valve area
3 inlet channel
4 outlet channel
5 valve plate
6 bending axis
7 contact piece
8 region of the Stent
9 valve support plate
10 crankcase
11 working volume
12 sealing profile
13 tab region
14 valve plate area
15a, … functional area
16 channels
17 space (c)
19 inlet space
Claims (10)
1. A valve plate (1) for installation in a reciprocating piston compressor, having a carrier region (8) and a valve region (2a, 2b), wherein the valve region (2a, 2b) has a movable valve plate (5) with a valve seat by means of which a through-channel (3) for a controlled medium in a valve carrier plate (9) can be closed, wherein the valve region (2a, 2b) acts on the carrier region (8) of the valve plate (1) via a web (7) such that the valve plate (5) is fixed relative to the carrier region (8),
it is characterized in that the preparation method is characterized in that,
the valve regions (2a, 2b) have a web region (13) which is fixed by the web (7) relative to the support region (8), wherein the valve plate (5) is flexibly connected to the web region (13).
2. Valve plate (1) according to claim 1,
it is characterized in that the preparation method is characterized in that,
a bending region along the bending axis (6) is provided between the valve plate (5) and the web region (13).
3. The valve plate (1) according to claim 2,
it is characterized in that the preparation method is characterized in that,
a web region (13) is provided which has two bending regions along the bending axis (6), wherein a valve plate (5) is flexibly connected to each bending region.
4. Valve plate (1) according to claim 3,
it is characterized in that the preparation method is characterized in that,
the valve plate (5) is designed symmetrically.
5. Valve plate (1) according to claim 3,
it is characterized in that the preparation method is characterized in that,
the bending region comprises two or more bending sections, by means of which the valve plate (5) is flexibly connected to the web region (13).
6. Valve plate (1) according to claim 1,
it is characterized in that the preparation method is characterized in that,
one or more outlet openings (4) for the controlled medium are provided in the valve regions (2a, 2 b).
7. Valve plate (1) according to claim 1,
it is characterized in that the preparation method is characterized in that,
the valve plate (1) has a sealing contour (12) on at least one side, wherein the valve regions (2a, 2b) are separated from the other functional regions (15a to 15 d).
8. Valve plate (1) according to claim 1,
it is characterized in that the preparation method is characterized in that,
the valve plate (1) has two or more valve regions (2a, 2 b).
9. Compressor with a valve plate (1) according to one of claims 1 to 8 as suction valve,
it is characterized in that the preparation method is characterized in that,
the valve plate (1) is clamped between a valve carrier plate (9) and a crankcase (10), the valve carrier plate having through channels (3, 4) for the controlled medium to enter and to be discharged from a working volume (11).
10. The compressor of claim 9 wherein said compressor further comprises a compressor,
it is characterized in that the preparation method is characterized in that,
the valve carrier plate (9) and the crankcase (10) have passages (16) and/or spaces (17), wherein the valve plate (1) has functional regions (15a to 15d) by means of which the passages (16) and/or spaces (17) are connected to one another or separated from one another in a fluid-tight manner.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019117634.4 | 2019-07-01 | ||
| DE102019117634.4A DE102019117634A1 (en) | 2019-07-01 | 2019-07-01 | Valve plate with valve lamellas |
| PCT/EP2020/066658 WO2021001148A1 (en) | 2019-07-01 | 2020-06-17 | Valve plate having valve lamellae |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114041024A true CN114041024A (en) | 2022-02-11 |
Family
ID=71266617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080048150.3A Pending CN114041024A (en) | 2019-07-01 | 2020-06-17 | Valve plate with valve plate |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20220356872A1 (en) |
| EP (1) | EP3994378A1 (en) |
| JP (1) | JP2022538661A (en) |
| CN (1) | CN114041024A (en) |
| DE (1) | DE102019117634A1 (en) |
| WO (1) | WO2021001148A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4006342B1 (en) * | 2020-09-30 | 2023-11-01 | Anhui Meizhi Compressor Co., Ltd. | Piston assembly, compressor assembly, and refrigeration device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1259158B (en) * | 1962-01-04 | 1968-01-18 | Hoerbiger Ventilwerke Ag | Valve, especially suction or pressure valve for piston compressors |
| US4164238A (en) * | 1975-11-03 | 1979-08-14 | Hoerbiger & Co. | Closing plate for a ring valve |
| CN1096855A (en) * | 1992-12-23 | 1994-12-28 | 霍尔格阀门工厂股份有限公司 | The valve of automatic control |
| KR20050017240A (en) * | 2003-08-11 | 2005-02-22 | 엘지전자 주식회사 | Suction valve open/close control device for reciprocating compressor |
| WO2015000524A1 (en) * | 2013-07-04 | 2015-01-08 | Arcelik Anonim Sirketi | Sealing assembly for reciprocating hermetic compressor |
| WO2018206371A1 (en) * | 2017-05-08 | 2018-11-15 | Voith Patent Gmbh | Reciprocating-piston machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008052744B3 (en) | 2008-10-22 | 2010-04-01 | Voith Patent Gmbh | Method for manufacturing air compressor, involves providing jacket of cylinder of air compressor in area of disk-locating surface with recess |
| DE102014111526A1 (en) | 2014-08-13 | 2016-02-18 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Fully integrated cylinder head for a compressor |
-
2019
- 2019-07-01 DE DE102019117634.4A patent/DE102019117634A1/en active Pending
-
2020
- 2020-06-17 WO PCT/EP2020/066658 patent/WO2021001148A1/en unknown
- 2020-06-17 EP EP20735088.5A patent/EP3994378A1/en not_active Withdrawn
- 2020-06-17 US US17/624,401 patent/US20220356872A1/en not_active Abandoned
- 2020-06-17 JP JP2021578128A patent/JP2022538661A/en not_active Withdrawn
- 2020-06-17 CN CN202080048150.3A patent/CN114041024A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1259158B (en) * | 1962-01-04 | 1968-01-18 | Hoerbiger Ventilwerke Ag | Valve, especially suction or pressure valve for piston compressors |
| US4164238A (en) * | 1975-11-03 | 1979-08-14 | Hoerbiger & Co. | Closing plate for a ring valve |
| CN1096855A (en) * | 1992-12-23 | 1994-12-28 | 霍尔格阀门工厂股份有限公司 | The valve of automatic control |
| KR20050017240A (en) * | 2003-08-11 | 2005-02-22 | 엘지전자 주식회사 | Suction valve open/close control device for reciprocating compressor |
| WO2015000524A1 (en) * | 2013-07-04 | 2015-01-08 | Arcelik Anonim Sirketi | Sealing assembly for reciprocating hermetic compressor |
| WO2018206371A1 (en) * | 2017-05-08 | 2018-11-15 | Voith Patent Gmbh | Reciprocating-piston machine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021001148A1 (en) | 2021-01-07 |
| US20220356872A1 (en) | 2022-11-10 |
| EP3994378A1 (en) | 2022-05-11 |
| DE102019117634A1 (en) | 2021-01-07 |
| JP2022538661A (en) | 2022-09-05 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |