CN2207315Y - Cylinder cover of automobile brake air compressor - Google Patents
Cylinder cover of automobile brake air compressor Download PDFInfo
- Publication number
- CN2207315Y CN2207315Y CN 94221418 CN94221418U CN2207315Y CN 2207315 Y CN2207315 Y CN 2207315Y CN 94221418 CN94221418 CN 94221418 CN 94221418 U CN94221418 U CN 94221418U CN 2207315 Y CN2207315 Y CN 2207315Y
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- Prior art keywords
- exhaust
- housing
- valve
- cylinder cap
- round platform
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- 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
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- 229910000838 Al alloy Inorganic materials 0.000 claims description 8
- 239000000565 sealant Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 239000011324 bead Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 210000002310 elbow joint Anatomy 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 208000002925 dental caries Diseases 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 210000003746 feather Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model provides a car braking air compressor cylinder cap, it includes admission valve guide holder (1), admission valve spring (2), air inlet valve block (3), air inlet disk seat (4), exhaust joint (5), discharge valve spring (6), discharge valve block (7), casing (8), discharge valve seat (9). Exhaust valve seat (9) are inlayed on the casing, and exhaust valve seat (9) centre bore sectional area is the same with current valve block formula cylinder cap, and its height ratio is lower than current valve block formula cylinder cap, and admission valve guide holder lower extreme is equipped with big circular bead, its advantage: reasonable structure, convenient processing, reliable performance and the like.
Description
The utility model is a kind of brake-air compressor cylinder cap, is parts on the EQ140 automobile brake air compressor.
Existing EQ140 automobile brake air compressor cylinder cap has two kinds: a kind of is the valve block formula, and another kind is the feather valve formula.What use at first is the valve block formula, and it has 12 parts in addition.Shell spare is formed by aluminium alloy compression casting, two chambeies about having on the housing.The right is an inlet chamber, communicates with airfilter by admission port, and air inlet valve seat cushion Mi Quan, inlet valve seat, air-intake valve plate, inlet valve spring and air inlet valve guide holder are housed in the chamber successively.Rely on the screw thread on the air inlet valve guide holder cylindrical to screw in housing from bottom to top, inlet valve seat and air inlet valve seat cushion Mi Quan are pressed on the housing.There is big shoulder air inlet valve guide holder bottom, and when cylinder cap was contained on the cylinder body, this shoulder lower plane had sub-fraction to be pressed on the cylinder pad, prevents to fall in the cylinder body after the air inlet valve guide holder from becoming flexible to clash into mutually with piston, and the upper end in this chamber has screw thread to be used to install pressure loosening valve.One chamber, the left side is a discharge chamber on the housing, and the wave mode spring washer is housed in the chamber, exhaust valve spring, exhaust valve plate, blow off valve guide holder, exhaust valve pad Mi Quan and exhaust valve seat.Rely on the screw thread on the exhaust valve seat cylindrical to screw in housing from bottom to top, Mi Quan is pressed on the housing the blow off valve seat cushion.The wave mode spring washer is pressed on the blow off valve guide holder on the exhaust valve seat.Also there is a big shoulder exhaust valve seat bottom, and this shoulder also has and the identical effect of the big shoulder in air inlet valve guide holder bottom except that having the effect that compresses blow off valve seat cushion Mi Quan.The upper end in this chamber is shaped on taper thread, is used for being connected with the exhaust elbow joint, also has four holes to be used for being connected with cylinder body on the housing lower plane.The weak point of this cylinder cap is: 1, because the restriction of structure makes residual volume not do too for a short time, the Air compressor Volumetric efficiency of this cylinder cap and the qualified level that the volume specific energy generally can only reach the industry regulation of classification are housed.2, the empty cutter spacing of two M33 on the housing * 1.5 screw threads is too short, and processing acquires a certain degree of difficulty, and must use special-purpose screw tap, and the screw tap loss is big, so manufacturing cost is higher.3, air inlet valve guide holder and exhaust valve seat all are to screw in housing from bottom to top, and the material of two kinds of valve seats is steel, and the material of housing is an aluminum alloy.Difference of thermal expansion coefficients is bigger, though the bottom all has the part of big shoulder to be pressed on the cylinder pad, can only be anti-fall, and but can not be locking, thus easily loosening in these two kinds of valve seat work, produce fault.
The cylinder cap of feather valve formula occurs later, and this cylinder cap has a block casting iron valve plate, and induction opening and deflation hole are arranged on the valve plate.The air inlet tongue is housed on the valve plate lower plane, and the air inlet tongue covers induction opening, and the exhaust tongue is housed on the plane on the valve plate, and the exhaust tongue covers deflation hole.Be covered with an aluminum_alloy cover on the valve plate, between cover and the valve plate air packing arranged, have a vertical partition plate, aluminum_alloy cover to install in the middle part of the aluminum_alloy cover induction opening on the valve plate and deflation hole are tightly separated with rear bulkhead.Induction opening by valve plate on the aluminum_alloy cover is connected with airfilter on one side, and the deflation hole one side by valve plate is connected with bleeder line.The advantage of this cylinder cap is: the charge efficiency of Air compressor of this cylinder cap and the high-class product level that specific power can reach the industry regulation of classification are housed, but the air-tightness of blow off valve good not as the valve block formula.And complex structure, machinework requires high, and manufacturing cost is more high than valve block formula, and is poor with the interchangeability of the very big valve block formula cylinder cap of social recoverable amount, is difficult to replace for the moment the cylinder cap of valve block formula.
It is good that the purpose of this utility model provides a kind of blow off valve air-tightness, and the number of packages amount is lacked than existing valve block formula in addition, and is simple in structure, the possibility that produces fault is few, low cost of manufacture, and good with the interchangeability of existing valve block formula cylinder cap, can replace the new type compressor cylinder cap that has valve block formula cylinder cap now rapidly.
The utility model achieves the goal by following measure, it is by air inlet valve guide holder (1), inlet valve spring (2), air-intake valve plate (3), inlet valve seat (4), exhaust joint (5), exhaust valve spring (6), exhaust valve plate (7), housing (8), 9 other parts such as exhaust valve seat (9) are formed.Left and right two chambeies are arranged on the housing (8), and left chamber is a discharge chamber, and right chamber is an inlet chamber.The exhaust valve seat (9) of discharge chamber bottom, the left side is embedded on the housing, and the center access hole sectional area of exhaust valve seat (9) keeps with to have valve block formula cylinder cap now identical, but highly reduction, the plane flushes with the housing lower plane under the exhaust valve seat.On housing (8), the exhaust valve seat top is shaped on little cylindrical cavity (B), and this cylindrical cavity is used for laying exhaust valve plate (7), and leads to valve block.Exhaust joint (5) has a little round platform (D) bottom, stretches in exhaust valve spring (6) endoporus, to spring location and guiding.The little round platform (D) of little cylindrical cavity (B) on the housing (8) and exhaust joint (5) lower end matches, and undertakes the effect of blow off valve guide holder.Exhaust joint (5) is gone up also has big round platform (Z).Horizontal uniform four holes communicate with centre hole on this round platform, and the centre hole upper end is shaped on taper thread (Z), are used for installing outside part exhaust elbow joint in addition.There is screw thread (T) the inlet chamber upper end on housing (8) the right, is used for installing outside part pressure loosening valve in addition, and the middle part communicates with admission port (S), the bottom is installed into air valve seat (4), air-intake valve plate (3), inlet valve spring (2), four of air inlet valve guide holders (1) etc. are part in addition.Air inlet valve guide holder bottom does not have big shoulder, the periphery bottom is shaped on connecting thread (R), the less light beam face of one diameter is arranged on the screw thread (R), when air inlet valve guide holder (1) is screwed in the housing (8), the light beam face stretches in the housing thread Pilot hole inlet valve seat (4) is pressed on the housing, and the empty cutter spacing of housing screw thread can be done longerly like this.The specification of the inlet chamber upper end screw thread (T) on exhaust joint (5), centre hole upper end taper thread (Z), the housing (8) keeps with to have valve block formula cylinder cap now identical; The size and the position in 4 holes (V) that are connected with cylinder body on the housing (8), the sectional area and the shape of admission port (S) also keep identical with the corresponding construction of existing valve block formula cylinder cap; The scantling of structure that is used for the flange (W) that is connected with outside part airfilter in addition on the housing (8) also should keep identical with existing valve block formula cylinder cap; More than several identical interchangeabilitys of having protected the utility model and existing valve block formula cylinder cap.Scribble sealant at I, II two places during assembling, seal.Scribble a circle adhesive agent at air inlet valve guide holder (1) outside thread (R) middle part, in case the air inlet valve guide holder gets loose.Inlet and outlet valve block, inlet and outlet spring adopt and have the identical outsourcing piece of valve block formula cylinder cap now.After cylinder cap assembles, the valve port plane that should guarantee inlet valve seat (4) is identical with existing valve block formula cylinder cap with the distance on the last plane of housing (8), also should guarantee the pressure that gives of inlet and outlet spring, the open limit of intake and exhaust valve block is identical with existing valve block cylinder cap.
Good effect of the present utility model is: 1, exhaust valve seat of the present utility model is embedded on the housing, lower plane flushes with the housing plane, under the same case that keeps exhaust valve seat central aisle hole sectional area and existing valve block formula, therefore the length of passage can be done shortlyer, the residual volume that forms little than existing valve block formula cylinder cap; Air inlet valve guide holder lower end does not have big shoulder, and the formed residual volume of recessed housing is also less, so the Grade A level that the utility model cylinder cap Air compressor Volumetric efficiency and volume specific energy can reach the industry regulation of classification is housed.
2, the utility model in addition the part sum have 9, lack 3 than the cylinder cap of existing valve block formula, structure is greatly simplified, the possibility minimizing of et out of order.The empty cutter spacing of two M33 on the housing * 1.5 screw threads is big, does not need special-purpose screw tap, process easier, so the manufacturing cost reduction.3, exhaust valve seat of the present utility model is to be embedded in from the top down on the housing, scribbles adhesive agent during the assembling of air inlet valve guide holder on connecting thread, all is difficult for getting loose, and causes fault.4, the connecting part bit position of the utility model and outside part in addition and scantling of structure keep using so the utility model can exchange with existing valve block formula cylinder cap fully with to have valve block formula cylinder cap now consistent.
The drawing explanation
Fig. 1 is an assembly drowing of the present utility model.
Fig. 2 is the birds-eye view of housing (8).
Fig. 3 is that the C of housing (8) is to view.
Arabic number among the figure are each numberings of part in addition, and capitalization English letter is the code name at other each position of part, and Roman number indication place is the place that is coated with sealant.
Be most preferred embodiment of the present utility model below, housing (8) adopts 108 aluminum alloy die gravitational castings to form (under the situation of sacrificing thermal diffusivity slightly, also can adopt ironcasting, cost can be lower like this).20 millimeters of radiating gill above it (U) height, thick 2.5 millimeters of top.Chamber, left side lower diameter φ 24.7+0.13 millimeter, thick 5 millimeters of bottom surface.Bottom center is the hole of φ 16+0.027, is used for inlaying exhaust valve seat (9).On the exhaust valve seat, form little cylindrical cavity (B), be used to lay exhaust valve plate (7), and supply and exhaust valve block guiding.Be big cylindrical cavity on the little cylindrical cavity, the screw thread of M33 * 1.5 is made on the top in chamber, is used for precession exhaust joint (5).Housing (8) upper right chamber is an inlet chamber, and the upper end in chamber is M24 * 1.5 screw threads, is used for installing outside part pressure loosening valve in addition.Be 26 millimeters cavitys of a φ under the screw thread, its right is connected with free air diffuser (S).It under φ 26 cavitys big cavity, M33 * 1.5 screw threads are made in its underpart, this chamber is used to be installed into air valve seat (4), air-intake valve plate (3), air inlet spring (2), air inlet valve guide holder (1), the diameter that is used for four holes (V) that are connected with outside part cylinder body in addition on the housing (8) is 8.7 millimeters of φ, free air diffuser (S) cross section is high 10 millimeters, and is wide 17 millimeters.
Exhaust valve seat (9) is by 45
#Steel is made, through quenching and sending out blue the processing.Its height overall is 7 millimeters, low 5 millimeters than existing valve block formula, 17 millimeters of valve port external diameter φ are high 2 millimeters.12.6 millimeters of central aisle hole φ, its sectional area is identical with existing valve block formula, and there are 30 ° of chamferings the centre hole upper end, 1.25 millimeters of valve port live widths, valve port and valve block contact level should grind, to guarantee its air-tightness.
Exhaust joint (5) is with 35
#Steel is made, send out blue the processing through quenching, its lower end is a little round platform (D), and 13 millimeters of round platform diameter phi are used to install exhaust valve spring (6), and to spring location and guiding, on the little round platform round platform (E), 21 millimeters of diameters, circumference uniform distribution 4 holes communicate with centre hole, the Z3/8 taper thread is made in centre hole upper end (Z), is used for installing outside part exhaust elbow joint in addition.Be M33 * 1.5 screw threads (F) on the round platform (E), be used for being connected with housing (8).Be shoulder (G) on the screw thread, this shoulder is pressed in when exhaust joint screws in housing fully on the housing on the plane, plays location and sealing function.Be that a square size is 22 millimeters a positive hexahedron (H) on the shoulder (G), be used to lay spanner exhaust joint is tightened.
Inlet valve seat (4) is made by the Y15 steel, handles through cyaniding and Fa Lan.Outstanding 2.8 millimeters of valve port (J), 17 millimeters of external diameter φ, 13 millimeters of centre hole φ, valve port end system chamfering at 45 in the hole, 1.25 millimeters of valve port live widths, valve port should grind, to guarantee its air-tightness.On the valve port big shoulder (K), diameter phi 31.4
-0.12 0.28Millimeter, thick 3 millimeters.On the big shoulder is a less round platform, 25 millimeters of diameter phi, and behind the housing of packing into, this round platform imbeds in the cavity of housing φ 26, and plane flushes with free air diffuser (S) lower collar thread or lower slightly on it.
Air inlet valve guide holder (1) is by 45
#Steel is made, through sending out blue the processing.The difference of the air inlet valve guide holder of it and existing valve block formula cylinder cap is: its underpart does not have shoulder, and cylindrical bottom (R) locates to be M33 * 1.5 screw threads, and top is a light beam face, can put in the bottom outlet of M33 on the housing * 1.5 screw threads.Its inner chamber (N) diameter 24.7+0.14 millimeter is used to be installed into air valve plate (3), and to the air-intake valve plate guiding, center round platform (M) is used to be installed into spring for valve (2), and to spring location and guiding.Hole on the bottom surface (L) is used for ventilation and screws the usefulness of air inlet valve guide holder.
The intake and exhaust valve block, the intake and exhaust spring, general with existing valve block formula cylinder cap, the figure number of intake and exhaust valve block is 3509C-046, the figure number of inlet valve spring is 35090-044, and the figure number of exhaust valve spring is 35090-144, and they can have been bought in professional production producer according to figure number.
Be coated with place's 604 non-drying type sealants in I, II two during installation, prevent seepage, be coated with a circle epoxy adhesive at the middle part of air inlet valve guide holder screw thread (R), in case the air inlet valve guide holder gets loose, sealant and adhesive agent are on sale on the market.
During work, when the Air compressor piston capable from top dead point to bottom dead point, form negative pressure in the cylinder body, exhaust valve plate (7) is in closed condition under the effect of exhaust valve spring (6), air passes through airfilter under bar pressure, inlet channel (S) enters in φ 26 cavitys of housing (8) inlet chamber, overcome the elastic force of inlet valve spring (2), open air-intake valve plate (3), (L) enters cylinder by the hole.When the Air compressor piston capable from bottom dead point to top dead point, cylinder interior pressure raises, air-intake valve plate (3) is closed under the combined action of inlet valve spring (2) and cylinder body internal gas pressure, the cylinder body internal gas pressure continues to raise, common pressure up to elastic force that can overcome exhaust valve spring (6) and the gaseous tension above the exhaust valve plate (7), open blow off valve place sheet (7), enter little cylindrical cavity (B), by horizontal 4 holes on the round platform (E) of exhaust joint (5), enter exhaust joint centre hole and the discharge of outside part exhaust elbow joint in addition, finish a circulation.When Air compressor quit work, exhaust valve plate (7) was closed under the combined action of gaseous tension at exhaust valve spring (6) with above the valve block, prevented that pressurized air in the air tank is through the blow off valve cylinder that bleeds.And then escape in the atmosphere.
Claims (5)
1, a kind of automobile brake air compressor cylinder cap, comprise the air inlet valve guide holder, inlet valve spring, air-intake valve plate, exhaust valve seat, exhaust joint, exhaust valve spring, exhaust valve plate, housing, exhaust valve seat, it is characterized in that: exhaust valve seat (9) is set on the housing (8) from top to bottom, and the lower plane of exhaust valve seat (9) flushes with housing (8) lower plane, and little cylindrical cavity (B) is arranged on exhaust valve seat (9), there is a little round platform (D) to match under the exhaust joint (5) with little cylindrical cavity (B) on the housing (8), one big round platform (E) is arranged on little round platform, have four holes to communicate with the centre hole of exhaust joint (5) on its round platform (E), the upper end of centre hole is shaped on taper thread (Z), the air inlet valve guide holder is no shoulder straight barrel type, and exhaust joint (5) and air inlet valve guide holder (1) are fixed on the housing (8) with sealant and adhesive agent.
2, by the described cylinder cap of claim 1, it is characterized in that: housing (8) adopts aluminum alloy die gravitational casting to form.
3, by the described cylinder cap of claim 1, it is characterized in that: the lower end of exhaust joint (5) is little round platform (D), and the round platform diameter is φ 13, round platform on the little round platform (E), diameter is φ 21, and centre hole upper end (Z) makes taper thread, is M33 * 1.5 screw threads (F) on the round platform (E).
4, by the described cylinder cap of claim 1, it is characterized in that: outstanding 2.8 millimeters of the valve port (J) of inlet valve seat (4), external diameter φ 17, centre hole φ 13 are big shoulder (K) on the valve port, diameter phi 31.4
-0.12 0.28, be a roundlet platform diameter phi 25 on it.
5, by the described cylinder cap of claim 1, it is characterized in that: M33 * 1.5 screw threads are located to be in the cylindrical bottom (R) of air inlet valve guide holder (1), and top is a light beam face, its inner chamber (N) diameter phi 24.7+0.14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94221418 CN2207315Y (en) | 1994-09-20 | 1994-09-20 | Cylinder cover of automobile brake air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94221418 CN2207315Y (en) | 1994-09-20 | 1994-09-20 | Cylinder cover of automobile brake air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2207315Y true CN2207315Y (en) | 1995-09-13 |
Family
ID=33835723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94221418 Expired - Fee Related CN2207315Y (en) | 1994-09-20 | 1994-09-20 | Cylinder cover of automobile brake air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2207315Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871446A (en) * | 2010-07-30 | 2010-10-27 | 丹佛斯制冷设备(天津)有限公司 | Exhaust connector |
| CN105937489A (en) * | 2015-03-03 | 2016-09-14 | 周文三 | Structure of air compressor |
-
1994
- 1994-09-20 CN CN 94221418 patent/CN2207315Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871446A (en) * | 2010-07-30 | 2010-10-27 | 丹佛斯制冷设备(天津)有限公司 | Exhaust connector |
| CN101871446B (en) * | 2010-07-30 | 2012-05-23 | 思科普压缩机(天津)有限公司 | Exhaust connector |
| CN105937489A (en) * | 2015-03-03 | 2016-09-14 | 周文三 | Structure of air compressor |
| CN105937489B (en) * | 2015-03-03 | 2018-06-05 | 周文三 | Structure of air compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |