EP3440355A1 - Compresseur muni d'un dispositif d'économie d'énergie et procédé de décharge du compresseur - Google Patents

Compresseur muni d'un dispositif d'économie d'énergie et procédé de décharge du compresseur

Info

Publication number
EP3440355A1
EP3440355A1 EP17715924.1A EP17715924A EP3440355A1 EP 3440355 A1 EP3440355 A1 EP 3440355A1 EP 17715924 A EP17715924 A EP 17715924A EP 3440355 A1 EP3440355 A1 EP 3440355A1
Authority
EP
European Patent Office
Prior art keywords
valve
valve element
compressor
piston chamber
cylinder head
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
Application number
EP17715924.1A
Other languages
German (de)
English (en)
Other versions
EP3440355B1 (fr
Inventor
Frederic Amiot
Jean-Baptiste Marescot
Jörg MELLAR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of EP3440355A1 publication Critical patent/EP3440355A1/fr
Application granted granted Critical
Publication of EP3440355B1 publication Critical patent/EP3440355B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/03—Stopping, starting, unloading or idling control by means of valves
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/002—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for driven by internal combustion engines
    • 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
    • F04B39/08—Actuation of distribution members
    • 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
    • F04B39/12—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
    • F04B39/14—Provisions for readily assembling or disassembling
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/16—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by adjusting the capacity of dead spaces of working chambers
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1095—Valves linked to another valve of another pumping chamber
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/22—Arrangements for enabling ready assembly or disassembly

Definitions

  • the present invention relates to a compressor for generating compressed air for a commercial vehicle and a method for unloading a compressor, wherein the
  • Compressor has a housing with a piston chamber and a dead space and a valve device for separating the dead space of the piston chamber.
  • Auxiliary units of commercial vehicles such as rail vehicles, trucks or buses are often operated with compressed air, which is usually supplied by a compressed air system operated in the vehicle.
  • compressed air systems work with compressors, which are usually driven directly from the drive unit of the vehicle such as an internal combustion engine.
  • the compressor is often driven as long as the drive unit of the commercial vehicle is in operation. In times when there is no need for air or the compressed air reservoirs of the commercial vehicle are completely filled, the compressor can usually be relieved by means of an energy saving device in order to reduce the energy consumption of the compressed air system.
  • Such devices are often activated by means of a pneumatic pressure signal from a downstream air handling unit. Together, such devices have, when activated, permanently open the compression chamber of the compressor to a dead zone in the cylinder head specially designed for this purpose and / or to the air inlet to accommodate the thermodynamic work being done during a crank revolution to reduce.
  • an energy-saving device which has a valve element which moves in order to relieve the compressor in the direction of the compression chamber of the compressor.
  • Compressor is required. This opening is to be closed after assembly of the valve device, for example by means of a closure plate and seal accordingly. This is complex and expensive and also represents a risk of leakage because of the risk of leakage.
  • the present invention is therefore based on the object to provide an improved compressor and an improved method for relieving a compressor for generating compressed air for a commercial vehicle. This is achieved according to the invention by the teaching of the independent claims. Advantageous embodiments and modifications of the invention are the subject of the dependent claims.
  • a compressor for generating compressed air for a commercial vehicle comprising a housing with a piston chamber in one
  • the compressor further comprises a valve means having a valve member having an actuating portion and a shut-off body for separating the dead space of the piston chamber, wherein the shut-off body for opening the valve means from one to a
  • Valve plate trained valve seat in the direction of the piston chamber can be lifted.
  • the valve element is integrally formed with the actuating portion and the valve plate is formed so that the valve element with the actuating portion through the valve plate towards the cylinder head is feasible until the shut-off valve valve seat and the actuating portion are arranged in the cylinder head.
  • the housing of the compressor has a crankcase, in which at least one piston chamber with a piston extending therein extends, and a Valve plate, which is arranged opposite to the at least one piston chamber finally on the crankcase, a cylinder head, in which at least one
  • Valve element is mounted at least one valve device and in some
  • a dead space extends at least partially in the area of
  • the at least one valve element has a arranged in the cylinder head
  • valve device closed state of the valve device - in particular during the generation of compressed air - on a valve seat arranged in the valve seat, of which the shut-off body by an axial movement of the valve element in the direction of
  • Piston space can be lifted to a flow of air into the dead space too
  • the valve element according to the invention has an actuating portion formed integrally therewith, which has an actuating device which is used to bring about a movement of the valve element along its longitudinal axis with energy
  • valve element is thus by means of the device of the
  • Actuating portion axially movable in the direction of the piston chamber.
  • An additional, known from the prior art actuating element which in particular by an opening of the cylinder head and within the cylinder head, in particular fixedly mounted on the valve element, can be dispensed with.
  • a valve element is considered as one piece, which forms a solid unit before mounting on the compressor, which is not separated for mounting the valve element.
  • Such a valve element has an active device, which is formed integrally with the valve element and serves to actuate the valve device.
  • valve element may, for example, for manufacturing reasons or in a use various materials may be required to construct the valve element of two or more, in particular materially or non-positively connected components which form a unit that already exists prior to assembly of the valve element in the compressor, so that the valve element as a "part" in the compressor is installed.
  • the valve element can form a unit of, for example, welded together, soldered, pressed, bolted or otherwise firmly interconnected components, so that it in the sense of here
  • valve plate and a holding plate of the compressor provided in some embodiments are designed such that the valve element can be guided in the direction of the cylinder head during assembly, in particular through or in openings or recesses respectively arranged in the valve plate and / or optionally in the holding plate, to bring the valve element in its functional position, that is, until the shut-off of the valve element on the valve seat and the
  • valve element extends through the valve plate and, if provided, through the retaining plate, in particular perpendicular to the direction of maximum extent of valve plate or retaining plate.
  • the holding plate is designed in this case suitable to seal against leakage of the compressor.
  • the retaining plate may also be arranged, for example, in a suitable recess, in particular between the valve plate and the cylinder head of the compressor, or be arranged in another way in the area between the valve plate and cylinder head to accommodate in particular the valve element and possibly other suitable means for the function the valve device to provide.
  • the described design of the compressor, in particular the valve element, the valve plate and optionally the retaining plate allows a one-piece design the Ventilelennents, without requiring a mounting hole in the cylinder head for mounting components of a multi-part valve element, in particular after placement of the cylinder head, thereby eliminating the closing and sealing of such a mounting hole after assembly of the valve element.
  • the proposed design eliminates the risk of leakage of the seal.
  • the valve element is movably mounted in a valve space in the cylinder head along the axis of the valve element, wherein the valve space is limited on the side facing away from the piston chamber from the cylinder head. Since the valve element passes during assembly of the cylinder head from the side facing the piston chamber in the valve chamber, can on a mounting hole
  • the compressor is designed such that the
  • Valve space is limited on the side facing away from the piston chamber side of an arranged in the cylinder head intermediate plate. Even with such a design can be dispensed with a particularly costly sealed mounting hole on the side facing away from the piston chamber side in the cylinder head, thereby also eliminates a costly closing of the mounting hole as well as the associated risk of leakage.
  • Cylinder head arranged a holding plate through which the valve element extends after its mounting.
  • the holding plate has a
  • the Halteplattenauslangung is designed to be open at the side, so that the valve element by lateral insertion in the
  • the retaining plate can be arranged as a bearing element for a valve element arranged in the region of the valve element, in particular in the area around the valve element, or arranged on the retaining plate in the region of the cross section of the valve element
  • valve element In order to enable insertion and guiding of the valve element together with the actuating section through the valve plate and, if present, also through or to the retaining plate, it is expedient if an opening or a free space is provided in the retaining plate or adjacent thereto, whose cross section is at least as great is, as a possibly inclined cross-section of the actuating element in the region of its greatest extent, so that the actuating element for its mounting in the cylinder head is suitably movable.
  • an opening or a free space is provided in the retaining plate or adjacent thereto, whose cross section is at least as great is, as a possibly inclined cross-section of the actuating element in the region of its greatest extent, so that the actuating element for its mounting in the cylinder head is suitably movable.
  • valve element together with the actuating portion by a
  • Assembly process can be performed in the cylinder head. After placing the cylinder head, the valve element is then mounted together with the actuating portion in the longitudinal and thus already in the functional direction movable in the cylinder head.
  • Valve closing device arranged, by means of which the shut-off body for closing the valve device against the direction of the piston chamber to the valve seat is movable.
  • the valve closing device can be supported on the valve plate or a holding plate provided for this purpose.
  • valve closing devices are at least one suitable spring, for example one or more spiral springs, which are designed in particular as compression springs, disc springs or other suitable devices.
  • valve closing device On the valve element, the valve closing device is supported directly, for example, on at least one projection formed thereon, on which the Valve closing device during assembly on the valve element by means of suitable
  • Facilities can be mounted or fastened. Likewise is a supporting of the
  • Valve closing device on at least one additional holding element possible such as on a after the valve closing device connected to the valve element locking washer or other especially subsequently, for example, on a projection in a groove, in a bore or the like of the valve element in particular form-fitting suitable securing elements.
  • the holding plate in which the valve element with his
  • the Garplattenaus Principleung can be performed, the Garplattenaus Principleung is formed in the holding plate so that a valve closing device can be supported after mounting on the valve element on a sufficiently large area of the holding plate.
  • the valve element with the actuating element which usually has a larger diameter than the region of the valve element which moves in the mounted state and in the operation of the compressor in the region of the holding plate, passes through the valve plate in one region is guided, which is arranged slightly offset from the later operating location of the valve element. The valve element is only then moved into the operating position when larger diameter sections, such as in particular the
  • Valve closing device is supported in the direction of the piston chamber out, is in the
  • the valve closing device is a spring, in particular a spiral spring which, for example, has a conical shape.
  • the spring has a larger diameter in the support region on the valve or retaining plate than on the support on the valve element, whereby a larger support surface on the valve or retaining plate is possible.
  • this spring can be designed so that it surrounds the valve element adjacent to a molded or subsequently mounted projection sufficiently tight.
  • the smallest diameter of a conical spring is smaller than the diameter of the portion of the valve member against which the spring is supported and over which the spring is to be guided during assembly.
  • suitable mounting means can be used during assembly, by means of which the windings of the spring, which have a diameter which is smaller than the diameter of the portion of the valve element against which the spring is supported after assembly, expanded and passed through this section.
  • Valve device to open. For example, when using
  • Compressed air for actuating the valve element can flow.
  • the actuating portion of the valve element has the shape of a pneumatic piston, the
  • a suitable electromagnet is arranged on the valve chamber, for example, with which a magnetic field in the valve chamber is inducible, which applies an axial force to a conductor arranged therein.
  • the actuating portion of the valve element is mounted in the valve chamber and has a conductor as an acting device.
  • Actuation of the actuating portion with an electromagnetic field leads to an axial movement of the actuating portion and thus of the valve element, whereby the valve device apparently and thus a connection between
  • Piston space and dead space can be produced.
  • Operating portion may be made in this embodiment of a different material than the other portions of the valve device.
  • the valve element forms a unit in this case, even before mounting on
  • Compressor present, such a valve element, as already stated above, considered in the context of the invention described herein as one piece.
  • the actuating portion has a form of acting as a device, via which by means of positive mechanical energy in the direction of the actuating axis to the operating portion is transferable. It can the
  • the actuating portion in the cylinder head with a device in contact, which transmits mechanical energy to the active device of the actuating portion to move the shut-off of the valve element from the valve seat in the direction of the piston chamber.
  • the actuating portion as an active device on a projection in the form of a paragraph, via which by means of positive mechanical energy to the operating portion is transferable.
  • the actuating portion has a spindle groove as the acting device.
  • mechanical energy can be transmitted to the valve element in the direction of the actuation axis via a drive element connected to a spindle drive. Since the valve element is integrally formed with the actuating element even in these designs, such a valve element is considered in the context of the invention described herein as one piece.
  • shut-off does not extend beyond the valve plate in the piston chamber in the open state of the valve element.
  • the upper reversal point of the piston may be provided in the piston chamber in close proximity to the valve plate.
  • the compressor has at least one further valve device with at least one further valve element and at least one further piston chamber.
  • the compressor has at least one further valve device with at least one further valve element and at least one further piston chamber.
  • Cylinders are used, each with a further valve device with
  • At least one further valve element and at least one further dead space may be provided to relieve the compressor.
  • the piston chamber and the at least one further piston chamber are connected to one another via at least one dead space when the valve device and the at least one further valve device are open.
  • a further dead space may be provided, which is connectable via the further valve means with the other piston chamber.
  • Another dead space allows independent relief of the piston chambers.
  • one or more dead spaces may be provided, which are coupled via the suction line of the compressor with the atmosphere. By coupling with the atmosphere, a further reduction of the peak pressures occurring in unloaded operation can be achieved, whereby the energy consumption of the compressor can be further reduced.
  • the invention relates to a commercial vehicle with an inventive
  • the invention further relates to a method for relieving a compressor for generating compressed air for a commercial vehicle, comprising a compressor having a housing with a piston chamber in a crankcase and a dead space, which is at least partially formed in a cylinder head.
  • the compressor further comprises a valve device with a valve element which is integral with a
  • the method comprises the step of, during operation of the compressor, opening the valve means by applying pneumatic, electromagnetic or mechanical energy directly to the actuating portion of the valve member to relieve the compressor.
  • Valve device the air flowed into the piston chamber during the
  • Compression phase of the piston can flow at least partially into at least one dead space, which reduces the compression of the air in the piston chamber and this can flow back into the compression chamber during the intake phase of the piston, whereby thermodynamic work can be recovered. This relieves the compressor and reduces its energy consumption.
  • the valve element is formed integrally with the actuating element, no assembly of a particular additional actuating element through an opening of the cylinder head on the valve element is required.
  • FIG. 1 shows a sectional view through an exemplary compressor according to the invention.
  • FIGS. 2a and 2b each show a three-dimensional view of two
  • Figures 3a to 3d show a sequence of an exemplary inventive
  • FIGS. 4a to 4c show a sequence of an exemplary inventive
  • Fig. 4d shows a representation of the exemplary spring according to the invention from the
  • FIG. 5 shows a further exemplary valve device according to the invention
  • FIG. 6 shows a further exemplary valve device according to the invention, which is actuated by means of electromagnetic energy.
  • Fig. 7 shows a sectional view through another exemplary compressor according to the invention.
  • Fig. 8 shows a sectional view of a section of another exemplary compressor according to the invention.
  • Fig. 9 shows a sectional view of a section of another exemplary compressor according to the invention.
  • Fig. 1 shows a sectional view through an exemplary inventive
  • Compressor 10 This has a housing 1 1 with a piston chamber 16 in a crankcase 15, in which a in the piston chamber 16 movable piston 30th is arranged, which is driven via a connecting rod 34 by a crankshaft, not shown.
  • the housing 1 1 further includes a valve plate 12, as a
  • Dead space 18 extends in the holding plate 13, the valve plate 12 and the
  • the compressor 10 further includes a valve device 20 having a valve element 21 which extends through the holding plate 13 and is formed integrally with a shut-off body 22 and an operating portion 23.
  • the actuating portion 23 is designed so that it supports the valve element 21 axially movable in the cylinder head.
  • the valve device also has a valve seat 24, which is formed in a recess 26 of the valve plate 12 connected to the piston chamber 16.
  • the piston 30 of the compressor 10 is in the illustration shown just at the upper reversal point in the piston chamber 16, to which it rests almost on the valve plate 12.
  • the valve element 21 is movably mounted in a valve space 17 formed in the cylinder head 14 along the axis A of the valve element 21.
  • the valve chamber 17 is limited to the side facing away from the piston chamber 16 side of the cylinder head 14, without having a mounting hole or the like.
  • the valve space 17 of the exemplary embodiment has a supply port 19 for compressed air.
  • Embodiment has the shape of a pneumatic piston and is designed to seal the wall of the valve chamber 17.
  • compressed air is supplied to the valve space 17 through the supply opening 19.
  • valve element 21 is actuated directly and moved along its axis A against the restoring force of the resting on the support plate 13 spring 27 in the direction of the piston chamber 16 out, whereby the shut-off 22 lifts from the valve seat 24.
  • a connection between the dead space 18 and the piston chamber 16 can be released, through which the air from the piston chamber 16 can flow into the dead space 18.
  • 2a shows a three-dimensional view of an exemplary holding plate 13 according to the invention.
  • the holding plate has a holding plate opening 13a, through which the dead space 18 extends in the mounted state in the compressor 10 of the embodiment of FIG. Further, the holding plate opening 13 a is formed such that the valve element 21 together with the actuating portion 23 during assembly by the
  • Retaining plate 13 can be performed.
  • the holding plate opening 13a is formed such that sufficient in the area around the valve element 21 located in the operating position after assembly (indicated here by the axis A)
  • Operating portion 23 is guided inclined by the region of the holding plate opening 13 a with a large opening cross-section. In the later, in Fig. 1 vertical
  • valve element 21 When position, the valve element 21 extends in a section through the holding plate in which it has a small diameter. This small-diameter portion is in the operating position in a recess 13b at the edge of the holding plate opening 13a, so that the spring 27 rests on the holding plate 13 in a large area around the valve element 21.
  • Fig. 2b shows a three-dimensional view of another exemplary
  • the holding plate 13 has, compared to the holding plate 13 of Fig. 2a only a small extension and is arranged in a recess between the valve plate 12 and the cylinder head 14.
  • the holding plate 13 is formed so that it has no holding plate opening 13a, through which the valve element 21 would be to lead during assembly.
  • the holding plate 13 has a
  • FIGS. 3a to 3d show a sequence of an exemplary mounting of an exemplary valve element 21 according to the invention on the valve plate 12 and the holding plate 13, which is designed in the form of an intermediate plate.
  • valve member 21 Operating portion 23 of the valve member 21 is protected by a mounting cap 25 during this assembly.
  • the valve element 21 with the fastening section 23 is guided in an inclined manner relative to the later operating position through the recess 26 in the valve plate 12 to the retaining plate opening 13a (FIG. 3a). Subsequently, the upper portion of the valve element is replaced by the
  • Valve plate 12 and the holding plate opening 13 a guided (Fig. 3b), until the
  • valve element 21 can also have other regions of increased diameter, depending on the type of actuation and mounting of the valve element 21. Subsequently, the valve element 21 is brought into its operating position, in which the shut-off body 22 rests against the valve seat 24.
  • valve element 21 is in the operating position in which it extends in the valve plate 12 and the holding plate 13 and the shut-off element 22 rests against the valve seat 24.
  • valve element is in the same position as in Fig. 3c, but here already the spring 27 between a shoulder 21 a on the valve element 21 and the holding plate 13 is mounted. As can be seen, is in the valve element 21, the mounting cap 25, which during assembly the
  • Operating portion 23 protects, has been removed from the mounting portion 23.
  • FIGS 4a to 4c show a sequence of an exemplary mounting of a spring 27 on the valve element 21 in its operating position.
  • mounting cap 25 is located at its lower end to the shoulder 21 a on the valve element 21 and points in this area at least the same outer diameter as the paragraph 21 a.
  • the mounting cap 25 has a conical portion on which in the illustration in Fig. 4a, the also conical spring 27 is seated.
  • a mounting tool 40 can be placed on the mounting cap 25, by means of which by axial pressure, the spring on the
  • Mounting cap 25 is pushed.
  • the diameter of the turns of the spring 27, which is originally smaller than the outer diameter of the shoulder 21 a, is extended when the spring is pushed onto the mounting cap 25.
  • Fig. 4b the completion of the mounting situation is shown, in which the spring 27 has already been pushed with the aid of the mounting tool 40 on the mounting cap 25 and the shoulder 21 a of the valve element 21.
  • Fig. 4c take the upper turns of the spring 27 after crossing the mounting cap 25 back to their original smaller diameter and can be supported on the shoulder 21 a on the valve element 21.
  • the lower turns of the spring 27 are supported on the holding plate 13, so that due to a longitudinal compression of the spring between the shoulder 21 a and the holding plate 13, an axial force F acts on the valve element 21. In this way, the shoulder 21 a is acted upon by the holding plate 13 away and the shut-off 22 held on the valve seat 24.
  • FIGS. 4a to 4c shows a representation of the exemplary spring 27 according to the invention from FIGS. 4a to 4c. It can be clearly seen that the spring is conical. The upper turns, which are supported on the shoulder 21 a after assembly, thus have a smaller diameter than the lower turns, which are supported on the mounting plate 13 after assembly. Since the recess 13 b is opened at the edge of the holding plate opening 13 a only in a region which for the lateral
  • Fig. 5 shows another exemplary valve device 20 according to the invention with a cylindrically shaped spring 28 and a lock washer 29, the Valve element 21 is attached.
  • the Ventileinhchtung 20 shown in Fig. 5 20 differs from the valve device 20, which is shown in the previous figures, essentially in that the valve element 21 instead of the shoulder 21 a, a groove 29 a is formed for receiving a lock washer.
  • a groove 29 a is formed for receiving a lock washer.
  • Embodiment is after the passage of the valve element 21 through the
  • FIG. 6 shows a further exemplary valve device 20 according to the invention which can be actuated by means of electromagnetic energy.
  • the valve element 21 has an actuating portion 23 with a magnetically conductive active device which is mounted in the region of an electromagnet 35 arranged on the cylinder head 24 and movable in the direction of the axis A of the valve element 21 by application of electromagnetic energy.
  • the illustrated embodiment the
  • Valve device 20 by applying the actuating portion 23 of the
  • Valve element 21 is opened and closed in the absence of electromagnetic energy by the restoring force of the spring 27.
  • the valve element 21 from FIG. 6 has, in addition to the actuation section 23, a bearing section 21 b, by means of which the valve element 21 is mounted in the cylinder head 14 in the valve chamber 17.
  • Fig. 7 shows a sectional view through another exemplary compressor 10 according to the invention.
  • the compressor 10 shown in Fig. 7 differs from the compressor 10 shown in Fig. 1 in that the valve plate 12 is made planar, so that the dead space 18 does not extend into the valve plate 12.
  • This embodiment of the compressor 10 has a so-called supercooling plate as an intermediate plate, which also serves as a holding plate 13.
  • the dead space 18 is in this embodiment in the holding plate 13 and the cylinder head 14th
  • FIG. 7 shows a sectional view of a section of another exemplary compressor 10 according to the invention.
  • the holding plate 13 of this compressor 10 has a U-shape and is arranged in recesses in a flat valve plate 12.
  • the valve element 21 is inclined relative to the later functional position (shown in Fig. 8) through the valve plate 12 and the holding plate opening 13 a of the holding plate 13 and then tilted into the illustrated functional position, wherein the valve element 21 in the
  • Actuator 32 is guided.
  • the actuating element 32 is mounted in the valve chamber 17 of the cylinder head 12 and formed so that the actuating portion 23 of the valve element is centered therein receivable and storable. It can do that
  • Actuator 32 loosely rest on the actuating portion 23 (as shown in Fig. 8) and transmitted by a positive connection with the valve end or the shoulder 21 a on the valve member 21 as a mechanical effect energy to the valve element 21. It is also possible that the valve element is screwed inserted into a trained in the actuator 31 thread, in which case
  • Actuating portion 23 of the valve element 21 is provided a corresponding external thread as an acting device.
  • the actuating element 32 By acting on the valve chamber 17 with compressed air, the actuating element 32 is accelerated in the direction of the piston chamber 16, whereby the actuating portion 23 of the valve element 21 is acted upon by mechanical energy. In this way, the valve element 21 is actuated and lifted off the valve seat 24 as a result of the shut-off body 22.
  • the actuating element 32 By acting on the valve chamber 17 with compressed air, the actuating element 32 is accelerated in the direction of the piston chamber 16, whereby the actuating portion 23 of the valve element 21 is acted upon by mechanical energy. In this way, the valve element 21 is actuated and lifted off the valve seat 24 as a result of the shut-off body 22.
  • due to the enlarged surface of the actuating element 32 By acting on the valve chamber 17 with compressed air, the actuating element 32 is accelerated in the direction of the piston chamber 16, whereby the actuating portion 23 of the valve element
  • FIG. 9 shows a sectional view of a detail of another exemplary compressor 10 according to the invention.
  • the compressor 10 from FIG. 9 differs from the compressor 10 from FIG. 8 only in that no holding plate 13 is provided thereon is provided.
  • the spring 27 is supported directly on the valve plate 12 in this exemplary embodiment.
  • valve element 21 is guided along its axis A to the actuating portion 23 and optionally with a bearing portion 21 b in the formed in the cylinder head 14 valve chamber 17. Since the valve device 20 is already mounted prior to fitting of the cylinder head 14, there is no need for a mounting opening on the cylinder head 14, via which the valve device 20 is accessible from the outside.
  • the valve chamber 17 may therefore be formed limited on the side facing away from the piston chamber 16 side, so the outside of the cylinder head 14 from the cylinder head.
  • valve element 21 a paragraph on the valve element

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

L'invention concerne un compresseur servant à générer de l'air comprimé pour un véhicule utilitaire, présentant un carter comprenant une chambre de piston dans un carter de vilebrequin et un espace mort qui est réalisé au moins dans la tête de cylindre. Le compresseur présente par ailleurs un système de soupape comportant un élément soupape qui présente une partie actionnement et un corps d'obturation séparant l'espace mort de la chambre de piston, le corps d'obturation pouvant être soulevé d'un siège de soupape en direction de la chambre de piston pour l'ouverture du système de soupape. L'élément soupape est réalisé d'un seul tenant avec la partie actionnement.
EP17715924.1A 2016-04-07 2017-04-06 Compresseur muni d'un dispositif d'économie d'énergie et procédé de décharge du compresseur Active EP3440355B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016106332.0A DE102016106332A1 (de) 2016-04-07 2016-04-07 Kompressor mit Energiesparvorrichtung und Verfahren zum Entlasten des Kompressors
PCT/EP2017/058246 WO2017174717A1 (fr) 2016-04-07 2017-04-06 Compresseur muni d'un dispositif d'économie d'énergie et procédé de décharge du compresseur

Publications (2)

Publication Number Publication Date
EP3440355A1 true EP3440355A1 (fr) 2019-02-13
EP3440355B1 EP3440355B1 (fr) 2020-01-22

Family

ID=58489678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17715924.1A Active EP3440355B1 (fr) 2016-04-07 2017-04-06 Compresseur muni d'un dispositif d'économie d'énergie et procédé de décharge du compresseur

Country Status (8)

Country Link
US (1) US10670007B2 (fr)
EP (1) EP3440355B1 (fr)
JP (1) JP6671505B2 (fr)
KR (1) KR20180127487A (fr)
CN (1) CN109312732B (fr)
BR (1) BR112018070294A2 (fr)
DE (1) DE102016106332A1 (fr)
WO (1) WO2017174717A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018002755A1 (de) * 2018-04-06 2019-10-10 Peter Rausch Stufenlos regelbares Kompressorventil
AT525119B1 (de) * 2021-05-10 2023-04-15 Hoerbiger Wien Gmbh Kolbenkompressor mit variabler Kapazitätsregelung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972652A (en) * 1975-05-14 1976-08-03 Dresser Industries, Inc. Variable volume clearance chamber for compressors
DE3211598A1 (de) 1982-03-30 1983-11-03 Daimler-Benz Ag, 7000 Stuttgart Hubkolben-luftpresser
US4685489A (en) * 1984-04-13 1987-08-11 Copeland Corporation Valve assembly and compressor modulation apparatus
DE3446096A1 (de) * 1984-12-18 1986-06-19 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Sitzventileinrichtung
GB8618155D0 (en) * 1986-07-25 1986-09-03 Bendix Ltd Gas compressor apparatus
JPH109141A (ja) * 1996-06-27 1998-01-13 Zexel Corp エアーコンプレッサ
DE102008005435A1 (de) 2008-01-22 2009-07-23 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Kompressor mit einer Energiesparvorrichtung und Verfahren zum energiesparenden Betreiben eines Kompressors
DE102008053998A1 (de) * 2008-10-30 2010-05-06 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Kompressor zur Drucklufterzeugung für ein Kraftfahrzeug
CN103375391B (zh) * 2013-07-15 2016-03-02 上海酷风汽车部件有限公司 压缩机能量调节机构及其工作流程

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Publication number Publication date
EP3440355B1 (fr) 2020-01-22
US20190040855A1 (en) 2019-02-07
US10670007B2 (en) 2020-06-02
JP2019510925A (ja) 2019-04-18
KR20180127487A (ko) 2018-11-28
BR112018070294A2 (pt) 2019-01-29
JP6671505B2 (ja) 2020-03-25
CN109312732A (zh) 2019-02-05
WO2017174717A1 (fr) 2017-10-12
CN109312732B (zh) 2020-02-14
DE102016106332A1 (de) 2017-10-12

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