US20210180582A1 - Cylinder head for a compressor - Google Patents
Cylinder head for a compressor Download PDFInfo
- Publication number
- US20210180582A1 US20210180582A1 US17/269,031 US201917269031A US2021180582A1 US 20210180582 A1 US20210180582 A1 US 20210180582A1 US 201917269031 A US201917269031 A US 201917269031A US 2021180582 A1 US2021180582 A1 US 2021180582A1
- Authority
- US
- United States
- Prior art keywords
- cylinder head
- chambers
- compressor
- chamber
- 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.)
- Abandoned
Links
- 238000009413 insulation Methods 0.000 claims abstract description 26
- 239000012080 ambient air Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 2
- 239000003570 air Substances 0.000 description 17
- 239000002826 coolant Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 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
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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.
- the reciprocating compressor substantially consists of a main body and/or crankshaft housing or cylinder housing, in which at least one reciprocating piston is arranged, and a cylinder head.
- ambient air is suctioned into the reciprocating piston chamber via an inlet channel, the ambient air is compressed and subsequently passed on via a channel.
- the compressed air is passed on into a further and/or downstream compressor stage and is compressed further therein. The compressed air is subsequently conducted into the compressed air tank via an air treatment unit.
- the object of the invention is to improve the cylinder head construction such that the efficiency of the reciprocating compressor is increased.
- a cylinder head embodiment which is constructed such that an undesired heat transfer between two fluid flows is minimized. Further advantageous features of the embodiment according to the invention are disclosed in the subclaims.
- a cylinder head for a reciprocating compressor for compressing a compressible working medium comprising a cylinder cover and a valve carrier plate, is proposed, said cylinder head being constructed as follows and having the following features.
- An intermediate element is arranged between the cylinder cover and the valve carrier plate, and a plurality a channel sections and/or chambers are arranged between the valve carrier plate and the intermediate element and between the cylinder cover and the intermediate element and/or are formed thereby, through which various media flows can be conducted.
- one or more insulation chambers are provided in the cylinder head, which at least in regions thermally insulate the channel sections and/or chambers from one another.
- an inlet chamber and an outlet chamber are provided, the insulation chamber being arranged therebetween.
- further insulation chambers may also be arranged between the different temperature ranges.
- the insulation chambers contain enclosed ambient air. During assembly, therefore, no additional working step needs to be factored in.
- the insulation chambers may also be filled with an insulating material or contain a vacuum.
- the intermediate element has connection openings which connect together the channel sections and/or chambers in the valve carrier plate and in the cylinder cover. Thus the airflow and/or the cooling medium flow may pass from one plane to another.
- the intermediate element may also be a sealing element.
- FIG. 1 shows the reciprocating compressor with the cylinder head (section B-B)
- FIG. 2 shows a plan view of the cylinder head (section A-A)
- FIG. 1 shows a two-stage reciprocating compressor 1 and/or compressor with a cylinder head 2 in section.
- the section line may be seen in FIG. 2 .
- the cylinder head 2 is composed of the valve carrier plate 5 , the cylinder head cover 7 and an intermediate element 6 arranged therebetween.
- the insulation chambers 9 . 1 and 9 . 2 are arranged such that, in particular, the channel section 10 , through which the hot compressed air of the second compressor stage 18 is conducted to the outlet opening 20 , is insulated from the chambers 14 . 1 , 14 . 2 , 15 . 1 and 15 . 2 . 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 path of the insulation chambers may be seen in FIG. 2 , wherein it may be identified that a complete separation is not necessarily achieved between the hot and cold airflows by means of the insulation chambers. However, the direct heat transfer through the metal partition walls is at least significantly reduced by the partial insulation.
- the insulation chambers 9 . 1 and 9 . 2 are sealed cavities which are formed substantially by recesses in the valve carrier plate 5 and in the cylinder cover 7 and are closed by the intermediate element 6 .
- the insulation chambers 9 . 1 and 9 . 2 are filled with ambient air which has been enclosed during assembly.
- the precompressed air from the first compressor stage 17 is cooled as far as possible before it is suctioned into the second compressor stage 18 via the inlet chamber 14 . 2 .
- the airflow is conducted from the outlet chamber 15 . 1 of the first compressor stage 17 through a connecting channel 19 in the cylinder housing 3 .
- the walls of the connecting channel 19 are in contact at one point with the cooling channel 8 . 2 and additionally have a large cooling surface relative to the ambient air.
- FIG. 3 shows an alternative construction for a cylinder head 1 .
- This cylinder head differs substantially by the arrangement of the channels and chambers.
- the insulation chambers 9 . 3 are arranged between the connecting channel 19 and the compressed air channel 10 .
- the insulation chamber 9 . 3 is incorporated in the valve carrier 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
- 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 and/or compressors or air compressors serve for the compression of gases, for example air, which is used as a working medium for operating various systems in a motor vehicle.
- The reciprocating compressor substantially consists of a main body and/or crankshaft housing or cylinder housing, in which at least one reciprocating piston is arranged, and a cylinder head. During operation, ambient air is suctioned into the reciprocating piston chamber via an inlet channel, the ambient air is compressed and subsequently passed on via a channel. In the case of a multi-stage reciprocating compressor, the compressed air is passed on into a further and/or downstream compressor stage and is compressed further therein. The compressed air is subsequently conducted into the compressed air tank via an air treatment unit.
- Such a cylinder head is disclosed, for example, in DE 10 2015 225 069 A1 and is composed of a plurality of components which are arranged in layers one on top of the other. The components form various channels or chambers through which air or a cooling medium, in particular cooling water, flows. For cooling the compressed air, the guidance of the channel through the cylinder head and/or through the individual components of the cylinder head is selected such that the channel is as long as possible and is guided as closely as possible past the cooling medium channel. Due to the compact design of the cylinder head, however, it is not possible to avoid that a heat exchange takes place between the airflows which are guided through the cylinder head and which have different temperatures.
- In this case, the heat transfer between the airflows which are at different temperatures takes place via the partition walls of the channels. Due to the metal design of these partition walls the thermal conductivity is very good. A drawback is that this heat transfer negatively influences the efficiency of the reciprocating compressor.
- The object of the invention is to improve the cylinder head construction such that the efficiency of the reciprocating compressor is increased.
- The object is achieved according to the invention by a cylinder head embodiment which is constructed such that an undesired heat transfer between two fluid flows is minimized. Further advantageous features of the embodiment according to the invention are disclosed in the subclaims.
- A cylinder head for a reciprocating compressor for compressing a compressible working medium, comprising a cylinder cover and a valve carrier plate, is proposed, said cylinder head being constructed as follows and having the following features.
- An intermediate element is arranged between the cylinder cover and the valve carrier plate, and a plurality a channel sections and/or chambers are arranged between the valve carrier plate and the intermediate element and between the cylinder cover and the intermediate element and/or are formed thereby, through which various media flows can be conducted. In order to improve the efficiency of the reciprocating compressor, one or more insulation chambers are provided in the cylinder head, which at least in regions thermally insulate the channel sections and/or chambers from one another.
- In a preferred embodiment, for example in a single-stage reciprocating compressor, an inlet chamber and an outlet chamber are provided, the insulation chamber being arranged therebetween. In the case of multi-piston compressors or even multi-stage compressors, further insulation chambers may also be arranged between the different temperature ranges.
- Moreover, an outlet channel may be provided in the cylinder head, wherein the insulation chamber at least in regions thermally insulates the inlet chamber and the outlet chamber relative to the outlet channel.
- The insulation chambers may be substantially formed by recesses in the valve carrier plate and/or in the cylinder cover. In this case, therefore, the recesses are closed by means of the intermediate element.
- Preferably, the insulation chambers contain enclosed ambient air. During assembly, therefore, no additional working step needs to be factored in. Alternatively, however, the insulation chambers may also be filled with an insulating material or contain a vacuum.
- It may also be provided that the intermediate element has connection openings which connect together the channel sections and/or chambers in the valve carrier plate and in the cylinder cover. Thus the airflow and/or the cooling medium flow may pass from one plane to another. The intermediate element may also be a sealing element.
- In one embodiment, the cylinder head may be a cylinder head for a multi-stage reciprocating compressor, wherein the inlet chambers of the compressor stages are arranged between the outlet chambers of the compressor stages.
- Moreover, an insulation chamber may 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.
- By means of exemplary embodiments, further advantageous features of the invention are described with reference to the drawings. The cited features may not only be used advantageously in the combination shown but may also be individually combined together. The figures show in detail:
-
FIG. 1 shows the reciprocating compressor with the cylinder head (section B-B) -
FIG. 2 shows a plan view of the cylinder head (section A-A) -
FIG. 3 shows an alternative construction for a cylinder head -
FIG. 1 shows a two-stage reciprocating compressor 1 and/or compressor with acylinder head 2 in section. The section line may be seen inFIG. 2 . Thecylinder head 2 is composed of thevalve carrier plate 5, thecylinder head cover 7 and anintermediate element 6 arranged therebetween. -
FIG. 2 shows a plan view of thecylinder head 2, wherein the section line A-A ofFIG. 1 may be seen. - The reciprocating compressor 1 has a water cooling system which runs through the cylinder housing 3 and through the
cylinder head 2. The exact path of the cooling medium channels 8.1 and 8.2, which are connected together so that a flow of cooling medium may flow through the two regions, is not able to be identified. - As may also be seen in
FIGS. 1 and 2 , a plurality of channel sections 8.1, 10 run between thevalve carrier plate 5 and theintermediate element 6 and between thecylinder cover 7 and theintermediate element 6 and a plurality of chambers 14.1, 14.2, 15.1 and 15.2 are present. Moreover, a plurality of insulation chambers 9.1, 9.2 are arranged in thecylinder head 2. - In this exemplary embodiment the insulation chambers 9.1 and 9.2 are arranged such that, in particular, the
channel section 10, through which the hot compressed air of thesecond compressor stage 18 is conducted to the outlet opening 20, is insulated from the chambers 14.1, 14.2, 15.1 and 15.2. This prevents undesired heating of the intake air, in particular the cool ambient air, and the precompressed air which is conducted from thefirst compressor stage 17 to thesecond compressor stage 18. - The path of the insulation chambers may be seen in
FIG. 2 , wherein it may be identified that a complete separation is not necessarily achieved between the hot and cold airflows by means of the insulation chambers. However, the direct heat transfer through the metal partition walls is at least significantly reduced by the partial insulation. - As may be identified, the insulation chambers 9.1 and 9.2 are sealed cavities which are formed substantially by recesses in the
valve carrier plate 5 and in thecylinder cover 7 and are closed by theintermediate element 6. The insulation chambers 9.1 and 9.2 are filled with ambient air which has been enclosed during assembly. - In the case of two-stage reciprocating compressors 1 it is essential that the precompressed air from the
first compressor stage 17 is cooled as far as possible before it is suctioned into thesecond compressor stage 18 via the inlet chamber 14.2. In order to achieve this, the airflow is conducted from the outlet chamber 15.1 of thefirst compressor stage 17 through a connectingchannel 19 in the cylinder housing 3. The walls of the connectingchannel 19 are in contact at one point with the cooling channel 8.2 and additionally have a large cooling surface relative to the ambient air. -
FIG. 3 shows an alternative construction for a cylinder head 1. This cylinder head differs substantially by the arrangement of the channels and chambers. Thus in this case the insulation chambers 9.3 are arranged between the connectingchannel 19 and thecompressed air channel 10. The insulation chamber 9.3 is incorporated in thevalve carrier plate 5 and is closed by thesealing element 4. -
- 1 Compressor
- 2 Cylinder head
- 3 Cylinder housing
- 4 Sealing element
- 5 Valve carrier plate
- 6 Intermediate element
- 7 Cylinder cover
- 8 Cooling medium channel
- 9.1 . . . 9.3 Insulation chamber
- 10 Compressed air channel
- 11 Intake air channel second stage
- 12 Outlet valve
- 13 Inlet valve
- 14.1, 14.2 Inlet chamber
- 15.1, 15.2 Outlet chamber
- 16 Reciprocating piston chamber
- 17 First compressor stage
- 18 Second compressor stage
- 19 Connecting channel
- 20 Outlet opening
Claims (11)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018120027.7 | 2018-08-17 | ||
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 (1)
Publication Number | Publication Date |
---|---|
US20210180582A1 true US20210180582A1 (en) | 2021-06-17 |
Family
ID=67439208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/269,031 Abandoned US20210180582A1 (en) | 2018-08-17 | 2019-07-23 | Cylinder head for a 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 |
Citations (4)
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 |
US6276338B1 (en) * | 1998-12-17 | 2001-08-21 | Sanshin Kogyo Kabushiki Kaisha | Direct fuel injection for 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 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11218079A (en) * | 1998-01-30 | 1999-08-10 | Sanwa Seiki Co Ltd | 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 CN CN201980052617.9A patent/CN112567134B/en active Active
- 2019-07-23 US US17/269,031 patent/US20210180582A1/en not_active Abandoned
- 2019-07-23 WO PCT/EP2019/069726 patent/WO2020035265A1/en unknown
- 2019-07-23 EP EP19744669.3A patent/EP3837440B1/en active Active
Patent Citations (4)
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 |
US6276338B1 (en) * | 1998-12-17 | 2001-08-21 | Sanshin Kogyo Kabushiki Kaisha | Direct fuel injection for 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 |
Non-Patent Citations (1)
Title |
---|
Machine Translation of CN-102536746-A * |
Also Published As
Publication number | Publication date |
---|---|
WO2020035265A1 (en) | 2020-02-20 |
EP3837440A1 (en) | 2021-06-23 |
CN112567134A (en) | 2021-03-26 |
EP3837440B1 (en) | 2023-09-06 |
CN112567134B (en) | 2023-03-03 |
DE102018120027A1 (en) | 2020-02-20 |
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