EP3837440A1 - Cylinder head for a compressor - Google Patents
Cylinder head for a compressorInfo
- Publication number
- EP3837440A1 EP3837440A1 EP19744669.3A EP19744669A EP3837440A1 EP 3837440 A1 EP3837440 A1 EP 3837440A1 EP 19744669 A EP19744669 A EP 19744669A EP 3837440 A1 EP3837440 A1 EP 3837440A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder head
- chambers
- chamber
- compressor
- head according
- 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
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 238000002955 isolation Methods 0.000 claims description 7
- 239000012080 ambient air Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 2
- 108090000623 proteins and genes Proteins 0.000 claims 1
- 239000003570 air Substances 0.000 description 22
- 239000002826 coolant Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
-
- 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
Definitions
- the invention relates to a cylinder head for a compressor, in particular a reciprocating compressor for use in motor vehicles, which is suitable for compressing a compressible working medium, in particular air, for use in a compressed air supply device of a motor vehicle.
- Reciprocating compressors or compressors or air compressors are used to compress gases, e.g. B. air, which is used as a working medium for operating various units in a motor vehicle.
- the reciprocating compressor essentially consists of a main body, or crankshaft housing or cylinder housing, in which at least one reciprocating piston is arranged, and a cylinder head.
- ambient air is sucked into the piston chamber via an inlet duct, compressed and then passed on via a duct.
- the compressed air is passed on to a further or subsequent compressor stage, where it is compressed further.
- the compressed air is then fed into the compressed air tank via an air treatment unit.
- a cylinder head is known, for example, from DE 10 2015 225 069 A1 and is composed of several components which are arranged one above the other in layers. The components form different channels or chambers through which air or a cooling medium, in particular cooling water, flows.
- the channel guide through the cylinder head or through the individual components of the cylinder head is selected such that the channel is as long as possible and passes as close as possible to the coolant channel. Due to the compact design of the cylinder head, however, it cannot be avoided that heat exchange takes place between the air flows that are led through the cylinder head and have different temperatures. The heat transfer between the air flows at different temperatures takes place via the partition walls of the ducts. Due to the metallic design of these partitions, the thermal conductivity is very good. The disadvantage is that this heat transfer negatively affects the efficiency of the reciprocating compressor.
- the object of the invention is to improve the cylinder head structure in such a way that the efficiency of the reciprocating compressor is increased.
- a cylinder head for a reciprocating piston compressor for compressing a compressible working medium comprising a cylinder cover and a valve carrier plate, is proposed, which is constructed as follows and has the following features.
- An intermediate element is arranged between the cylinder cover and the valve support plate and a plurality of channel sections and / or chambers are arranged or formed by the valve support plate and the intermediate element and between the cylinder cover and the intermediate element, through which different media flows can be conducted.
- one or more insulating chambers are provided in the cylinder head, which thermally isolate the duct sections and / or karmers from one another at least in regions.
- an inlet space and an outlet space are provided, between which the insulating chamber is arranged.
- further insulation chambers can also be arranged between different temperature ranges.
- an exhaust port can be provided in the cylinder head, the insulating port thermally insulating the intake space and the exhaust space at least in regions from the exhaust port.
- the insulating chambers can essentially be formed by depressions in the valve carrier plate and / or in the cylinder cover. The depressions are then closed by means of the intermediate element.
- the isolation chambers preferably contain enclosed ambient air. No additional work step needs to be planned for assembly.
- the insulation chambers can also be filled with an insulation material or contain a vacuum.
- the intermediate element has connection openings which connect the channel sections and / or chambers in the valve carrier plate and in the cylinder cover to one another.
- the air flow and / or the cooling medium flow can thus move from one level to another.
- the intermediate element can also be a sealing element.
- the cylinder head can be a cylinder head for a multi-stage reciprocating compressor, the inlet chambers of the compressor stages being arranged between the outlet chambers of the compressor stages.
- an insulating chamber can be arranged between the outlet chamber and the inlet chamber of the second compressor stage and / or between the inlet chamber of the second compressor stage and the inlet chamber of the first compressor stage.
- FIG. 2 top view of the cylinder head (section A-A)
- FIG. 3 Alternative structure for a cylinder head
- Figure 1 shows a two-stage reciprocating compressor 1 or compressor with Zylin derkopf 2 in section. The course of the cut can be seen in FIG. 2.
- the cylinder head 2 is composed of the valve support plate 5, the cylinder head cover 7 and an intermediate element 6 arranged between them.
- FIG. 2 shows a plan view of the cylinder head 2, the section A-A being shown in FIG.
- the reciprocating compressor 1 has water cooling which runs through the cylinder housing 3 and through the cylinder head 2.
- FIGS. 1 and 2 As can also be seen from FIGS. 1 and 2, several channel sections 8.1, 10 and several chambers 14.1, 14.2, 15.1 and 15.2 are present between valve carrier plate 5 and intermediate element 6 and between cylinder cover 7 and intermediate element 6. Furthermore, there are several insulating chambers in the cylinder head 2
- the insulating chambers 9.1 and 9.2 are arranged such that, in particular, the duct section 10, through which the hot compressed air of the second compressor stage 18 is directed to the outlet opening 20, from the chambers
- 14.1, 14.2, 15.1 and 15.2 is isolated. This prevents undesired heating of the intake air, in particular the cool ambient air, and the precompressed air which is conducted from the first compressor stage 17 to the second compressor stage 18.
- the isolation chambers 9.1 and 9.2 are closed cavities which are essentially formed by depressions in the valve carrier plate 5 and in the cylinder cover 7 and are closed by the intermediate element 6.
- the insulating chambers 9.1 and 9.2 are filled with ambient air that was enclosed during assembly
- Connection channel 19 are once in contact with the cooling channel 8.2 and also have a large cooling surface with respect to the ambient air.
- Figure 3 shows an alternative structure for a cylinder head 1. This differs essentially in the arrangement of the channels and chambers.
- the insulating chambers 9.3 are arranged here between the connecting duct 19 and the compressed air duct 10.
- the insulating chamber 9.3 is incorporated in the valve support plate 5 and is closed by the sealing element 4.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018120027.7A DE102018120027A1 (en) | 2018-08-17 | 2018-08-17 | Cylinder head for a compressor |
PCT/EP2019/069726 WO2020035265A1 (en) | 2018-08-17 | 2019-07-23 | Cylinder head for a compressor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3837440A1 true EP3837440A1 (en) | 2021-06-23 |
EP3837440B1 EP3837440B1 (en) | 2023-09-06 |
Family
ID=67439208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19744669.3A Active EP3837440B1 (en) | 2018-08-17 | 2019-07-23 | Cylinder head for compressor |
Country Status (5)
Country | Link |
---|---|
US (1) | US20210180582A1 (en) |
EP (1) | EP3837440B1 (en) |
CN (1) | CN112567134B (en) |
DE (1) | DE102018120027A1 (en) |
WO (1) | WO2020035265A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110043450A (en) * | 2019-05-20 | 2019-07-23 | 浙江万安其弗汽车零部件有限公司 | Air compression plant and air compressor |
CN115263723B (en) * | 2022-08-25 | 2024-01-30 | 瑞立集团瑞安汽车零部件有限公司 | Cylinder body, air compressor and commercial vehicle |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2315011A (en) * | 1940-11-12 | 1943-03-30 | Quiroz Francisco Angel | Internal combustion engine |
US2443502A (en) * | 1941-02-08 | 1948-06-15 | Constantine N Guerasimoff | Engine construction |
JPH11218079A (en) * | 1998-01-30 | 1999-08-10 | Sanwa Seiki Co Ltd | Air compressor |
JP4049344B2 (en) * | 1998-12-17 | 2008-02-20 | ヤマハマリン株式会社 | In-cylinder fuel injection engine |
CN102536746A (en) * | 2010-12-22 | 2012-07-04 | 苏州鸿本机械制造有限公司 | Cylinder cover for air-cooled reciprocating piston air compressor |
DE102013019812A1 (en) * | 2013-11-26 | 2015-05-28 | Wabco Gmbh | Cylinder head for an air compressor |
US10125756B2 (en) * | 2014-12-22 | 2018-11-13 | Bendix Commercial Vehicle Systems Llc | System and method for reducing at least one of airflow turbulence and pressure fluctuation proximate a valve |
DE102015225069B4 (en) * | 2015-12-14 | 2017-11-30 | Voith Patent Gmbh | Cylinder head for multi-stage reciprocating compressor |
US10174755B2 (en) * | 2016-05-06 | 2019-01-08 | Bendix Commercial Vehicle Systems Llc | Compressor head assembly with discharge valve |
-
2018
- 2018-08-17 DE DE102018120027.7A patent/DE102018120027A1/en active Pending
-
2019
- 2019-07-23 WO PCT/EP2019/069726 patent/WO2020035265A1/en unknown
- 2019-07-23 CN CN201980052617.9A patent/CN112567134B/en active Active
- 2019-07-23 EP EP19744669.3A patent/EP3837440B1/en active Active
- 2019-07-23 US US17/269,031 patent/US20210180582A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20210180582A1 (en) | 2021-06-17 |
CN112567134B (en) | 2023-03-03 |
WO2020035265A1 (en) | 2020-02-20 |
DE102018120027A1 (en) | 2020-02-20 |
EP3837440B1 (en) | 2023-09-06 |
CN112567134A (en) | 2021-03-26 |
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