WO2011141225A2 - Cylinder head for brake air compressor - Google Patents
Cylinder head for brake air compressor Download PDFInfo
- Publication number
- WO2011141225A2 WO2011141225A2 PCT/EP2011/054970 EP2011054970W WO2011141225A2 WO 2011141225 A2 WO2011141225 A2 WO 2011141225A2 EP 2011054970 W EP2011054970 W EP 2011054970W WO 2011141225 A2 WO2011141225 A2 WO 2011141225A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- section
- cylinder head
- cross
- channel
- heat
- Prior art date
Links
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
- F04B39/064—Cooling by a cooling jacket in the pump casing
-
- 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
Definitions
- the invention relates to a cylinder head for brake air compressor, with a to the pressure valve (e) subsequent, cooled, elongated, extending in the cylinder head heat collector channel with slot-like cross section, which is substantially smaller in one dimension than transverse thereto.
- a disadvantage of this known design is in particular the fact that the usual production of such cylinder heads in the aluminum die-casting process, the feasible channel thickness of the heat collector channel (ie its extension in the smaller dimension the slit-like cross-section) is greatly limited downwards, since depending on the channel height a certain lower limit can not be exceeded, otherwise heat problems occur at these points (the mold can not be sufficiently cooled there), resulting in poor cast structure and shortened life of the mold can lead. For this reason, therefore, the heat transfer from the compressed gas into the cylinder head cooling in the known design can not be further optimized.
- Object of the present invention is to provide a cylinder head of the type mentioned in such a way that the mentioned disadvantages of the known embodiment are avoided and that in particular the cooling effect on the compressed gas can be improved while maintaining a simple production possibility.
- the cross section of the heat-collecting channel is limited in the smaller dimension of two separately manufactured and only during assembly of the heat-collecting channel-forming components.
- the channel thickness (that is, the extension of the slit-like cross section of the heat collector channel in the smaller dimension) can be lowered practically arbitrarily, without this having negative effects in the mold during casting, so that with simple production required for optimum cooling low channel thickness can be realized.
- the cross-section of the heat-collecting channel is smaller than the minimum pressure-valve gap cross-section, wherein between the pressure valve (s) and the inlet of the heat-collecting channel a pressure chamber is provided as a buffer space.
- the cross section of the heat collector channel is usually relatively small under good conditions for heat transfer, because it should be thin and you can not make it excessively high in the cylinder head for reasons of space.
- this cross section is now smaller than the minimum pressure-valve gap cross-section (which is the sum of all open pressure valve flow areas at the narrowest point in open valves to understand) - which in itself for the construction of the cylinder head is generally advantageous - so would the resulting back pressure leading to additional pressure losses upstream of the entrance to the heat-collecting channel, which is prevented or largely avoided by the pressure chamber for intercepting pressure peaks and smoothing the mass flow, so that the power loss due to the smaller channel cross-section can be limited.
- the positive effect by the improved cooling of the compressed gas outweighs a low power loss by far.
- the heat-collecting channel extends substantially annular in the cylinder head, which is simple and uncomplicated way for the production of a corresponding extension of the heat consumer channel allows.
- the cross-section of the heat-collecting channel is folded according to a particularly preferred further embodiment of the invention U-shaped, wherein the inner region and the outer region of this U-shaped cross-section are each bounded by one of the separately manufactured components of the cylinder head.
- the design of the cylinder head with the two separately manufactured and only during assembly the heat consumer channel forming components makes this possible in a very simple manner.
- the component delimiting the inner region of the U-shaped cross-section in a preferred further embodiment of the invention, has a cooling channel, preferably extending into the region of the bottom of the U-shaped cross section, inside the region adjoining the heat-collecting channel.
- the component bounding the outer region of the U-shaped cross-section may have cooling channels extending at least in some areas to near the bottom and / or the side walls of the U-shaped cross section.
- FIG. 1 shows the cylinder head in exploded view in a perspective view from above (ie in the direction of the cylinder to be presented underneath the compressor not shown) and Fig. 2 the same from below
- Fig. 3 shows a side view of the assembled cylinder head
- Fig. 4 shows a section along the line IV-IV in FIG. 3
- FIG. 5 shows a plan view of the cylinder head
- FIG. 6 shows an enlarged partial section along the line VI-VI in FIG. 5.
- the cylinder head shown consists essentially of two components 1, 2, which are pushed together during assembly and are closed at the top of the upper component 1 with a cover 3 and on the lower side of the lower component 2 with a lamella plate 4.
- the cover 3 there is an intake opening 5 via the ambient air into the suction space 6, the suction openings 7 of which are directed downwards (ie not shown). put cylinder space) are covered by the suction plate 8.
- the suction blade 8 is worked out directly from the slat plate 4 and connected on one side with this in one piece, so that they can open when sucking the suction gas down.
- the compressed gas pushed out of the cylinder passes to the pressure valve, not shown here, in the pressure chamber 10, which closes the pressure openings 9 at the top in a manner similar to the suction lamella 8 and releases them only to expel the compressed gas into the pressure chamber 10.
- the pressure space provided between the pressure openings 9 or the pressure valve to be presented there and the inlet of the heat collector channel 11 is designed to be relatively large and serves as a buffer space to compensate for pressure pulsations so that pressurized gas can still escape through the heat-collecting channel 1 during the expansion phase in the cylinder. can be pushed, whereby the pressure loss can be kept limited by the small cross-section of the heat collector channel 1 1. Due to the very thin heat collector channel 1 1 is a large heat transfer area to the cooled components
- the component 2 delimiting the inner region of the U-shaped cross-section of the heat-collecting channel 11 inside the region adjacent to the heat-collecting channel 11 is a cooling channel 14 extending into the region of the bottom of the U-shaped cross section having.
- the outer portion of the U-shaped cross-section limiting member 1 has a reaching into the vicinity of the bottom and the inner side wall of the U-shaped cross-section cooling channel 15, so that the heat-collecting channel 1 1 inside the U-shaped cross-section and on the inside of the cylinder head is connected to the compressor or engine cooling - in the partial area of the floor and on the outside, the cooling takes place via the ambient air.
- the compressor Cooling connected cooling channels are provided. The connections of the illustrated cooling channels to the cooling of the entire compressor or the driving internal combustion engine are not shown here for the sake of simplicity.
- the temperature level of the exiting compressed gas can be influenced in a very simple manner via the actual dimensions of this cross section and also via the intensity of its cooling, so that, for example, for lower tempera ture critical applications, higher outlet temperatures can be permitted, while for more sensitive connected systems also lower outlet temperatures are easily realizable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112011101332T DE112011101332A5 (en) | 2010-04-15 | 2011-03-31 | Cylinder head for brake air compressor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT6152010A AT509082B1 (en) | 2010-04-15 | 2010-04-15 | CYLINDER HEAD FOR BRAKE AIR COMPRESSOR |
ATA615/2010 | 2010-04-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011141225A2 true WO2011141225A2 (en) | 2011-11-17 |
WO2011141225A3 WO2011141225A3 (en) | 2012-09-07 |
Family
ID=44122623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/054970 WO2011141225A2 (en) | 2010-04-15 | 2011-03-31 | Cylinder head for brake air compressor |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT509082B1 (en) |
DE (1) | DE112011101332A5 (en) |
WO (1) | WO2011141225A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104074723A (en) * | 2014-06-04 | 2014-10-01 | 浙江红五环机械股份有限公司 | Cylinder cover for concentric annular valve of air compressor |
WO2020161153A1 (en) * | 2019-02-06 | 2020-08-13 | Hoerbiger Wien Gmbh | Cylinder head for piston compressor |
EP3763941A1 (en) * | 2019-07-10 | 2021-01-13 | WABCO Europe BVBA | Axial piston compressor of an apparatus for supplying pressurized air in automobiles |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013019812A1 (en) * | 2013-11-26 | 2015-05-28 | Wabco Gmbh | Cylinder head for an air compressor |
CN111120330A (en) * | 2018-10-31 | 2020-05-08 | 广东美芝精密制造有限公司 | Cylinder, manufacturing method of cylinder and rotary compressor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10242544B4 (en) | 2002-09-13 | 2006-03-30 | Man Nutzfahrzeuge Ag | Air compressor cylinder head |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2733089A1 (en) * | 1977-07-22 | 1979-02-08 | Bosch Gmbh Robert | Valve plate for reciprocating air compressor - has recesses completing cooling water channels in cylinder head above valve plate |
KR20050024782A (en) * | 2003-09-04 | 2005-03-11 | 대우종합기계 주식회사 | Cylinder head of air compressor |
JP2009209930A (en) * | 2008-02-08 | 2009-09-17 | Sanwa Seiki Co Ltd | Air compressor |
-
2010
- 2010-04-15 AT AT6152010A patent/AT509082B1/en not_active IP Right Cessation
-
2011
- 2011-03-31 DE DE112011101332T patent/DE112011101332A5/en not_active Withdrawn
- 2011-03-31 WO PCT/EP2011/054970 patent/WO2011141225A2/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10242544B4 (en) | 2002-09-13 | 2006-03-30 | Man Nutzfahrzeuge Ag | Air compressor cylinder head |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104074723A (en) * | 2014-06-04 | 2014-10-01 | 浙江红五环机械股份有限公司 | Cylinder cover for concentric annular valve of air compressor |
WO2020161153A1 (en) * | 2019-02-06 | 2020-08-13 | Hoerbiger Wien Gmbh | Cylinder head for piston compressor |
CN113439161A (en) * | 2019-02-06 | 2021-09-24 | 贺尔碧格维恩有限公司 | Cylinder head for piston compressor |
EP3763941A1 (en) * | 2019-07-10 | 2021-01-13 | WABCO Europe BVBA | Axial piston compressor of an apparatus for supplying pressurized air in automobiles |
Also Published As
Publication number | Publication date |
---|---|
AT509082A4 (en) | 2011-06-15 |
AT509082B1 (en) | 2011-06-15 |
DE112011101332A5 (en) | 2013-01-24 |
WO2011141225A3 (en) | 2012-09-07 |
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