US20180135413A1 - Axial piston machine - Google Patents

Axial piston machine Download PDF

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Publication number
US20180135413A1
US20180135413A1 US15/570,354 US201615570354A US2018135413A1 US 20180135413 A1 US20180135413 A1 US 20180135413A1 US 201615570354 A US201615570354 A US 201615570354A US 2018135413 A1 US2018135413 A1 US 2018135413A1
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US
United States
Prior art keywords
chamber
cylinder
housing part
wobble
plate
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
Application number
US15/570,354
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English (en)
Inventor
Michael Bucher
Christoph Fiala
Mirko Guenther
Michael Hoetger
Hannes Marlock
Berthold Repgen
Falk Schneider
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.)
Mahle International GmbH
Original Assignee
Mahle International 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 Mahle International GmbH filed Critical Mahle International GmbH
Publication of US20180135413A1 publication Critical patent/US20180135413A1/en
Assigned to MAHLE INTERNATIONAL GMBH reassignment MAHLE INTERNATIONAL GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Repgen, Berthold, GUENTHER, MIRKO, HOETGER, MICHAEL, BUCHER, MICHAEL, FIALA, CHRISTOPH, SCHNEIDER, FALK, MARLOCK, HANNES
Assigned to MAHLE INTERNATIONAL GMBH reassignment MAHLE INTERNATIONAL GMBH CORRECTIVE ASSIGNMENT TO CORRECT THE 5TH INVENTOR'S LAST NAME PREVIOUSLY RECORDED A T REEL: 046080 FRAME: 0558. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Assignors: Repgen, Berthold, GUENTHER, MIRKO, HOETGER, MICHAEL, BUCHER, MICHAEL, FIALA, CHRISTOPH, SCHNEIDER, FALK, MARLOK, Hannes
Abandoned legal-status Critical Current

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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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0878—Pistons
    • F04B27/0882—Pistons piston shoe retaining means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B17/00—Reciprocating-piston machines or engines characterised by use of uniflow principle
    • F01B17/02—Engines
    • F01B17/04—Steam engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0002—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F01B3/0044—Component parts, details, e.g. valves, sealings, lubrication
    • F01B3/007—Swash plate
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0878—Pistons
    • F04B27/0886—Piston shoes
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • 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
    • F04B39/126—Cylinder liners
    • 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders
    • F04B53/166—Cylinder liners
    • 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders
    • F04B53/166—Cylinder liners
    • F04B53/168—Mounting of cylinder liners in cylinders

Definitions

  • the present invention relates to an axial piston machine comprising a housing, in which a vapor chamber, a cylinder chamber and a wobble-plate chamber are provided. Moreover, the invention relates to a heat recovery system in a motor vehicle comprising at least one such axial piston machine.
  • a plurality of generic axial piston machines comprising a housing is known from the prior art, in which a vapor chamber, a cylinder chamber as well as a wobble-plate chamber are provided.
  • a rotor comprising a shaft as well as the wobble plate arranged thereon in a rotationally fixed manner and a valve disk, which is also connected to the shaft in a rotationally fixed manner, are also arranged in the housing.
  • the wobble plate which is in each case coupled to one of the pistons via a cup and ball bearing and which is coupled to the shaft in a rotationally fixed manner, is arranged in the wobble-plate chamber itself.
  • Such axial piston machines are in particular used in so-called heat recovery systems in motor vehicles, in which they convert thermal energy into mechanical energy.
  • the invention at hand thus deals with the problem of specifying an improved or at least an alternative embodiment for an axial piston machine of the generic type, which is characterized in particular by a structurally simple and cost-efficient production.
  • the present invention is based on the general idea of now embodying a housing of an axial piston machine, which is comparatively extensive and thus expensive to produce until now, in several parts and to thus disentangle the extremely complex production process.
  • the axial piston machine according to the invention thereby has a housing, in which a vapor chamber, a cylinder chamber and a wobble-plate chamber are arranged.
  • Cylinders, in which pistons are arranged in a translationally movable manner, are provided annularly around a shaft in the cylinder chamber.
  • a valve disk which is connected to the shaft in a rotationally fixed manner and which connects the vapor chamber so as to communicate with one of the cylinders or separates it therefrom, depending on the rotational position of the vapor chamber, is arranged in the vapor chamber itself.
  • a wobble plate which is connected to one of the pistons via a cup and ball bearing each and which is coupled to the shaft in a rotationally fixed manner, is arranged in the wobble-plate chamber.
  • the housing now has a steam-chamber housing part, a cylinder housing part and a wobble-plate housing part, which are connected to one another.
  • a cylinder sleeve comprising a radially protruding collar is provided in at least one cylinder, wherein the cylinder sleeve is retained by means of its collar in a cut-out in the cylinder housing part, which adjoins a parting plane between the vapor-chamber housing part and the cylinder housing part.
  • the vapor chamber itself is closed by means of a first cover, which is connected to the vapor-chamber housing part and which is designed as a shaped sheet-metal part.
  • the individual housing parts can be produced in a simpler and more lightweight manner, wherein an insertion of the cylinder sleeve into the cylinder is additionally possible from the vapor-chamber housing part.
  • the load capacity of the axial piston machine according to the invention can be increased significantly and the production effort thereof can be reduced significantly, because an individual post-processing of the cylinder tracks, which can only be accomplished with difficulties in the case of the housings, which have been provided to date, can now be forgone completely.
  • a cover which has been formed integrally with the vapor-chamber housing part until now, can also be forgone, whereby the production can be simplified, in turn.
  • this cover can moreover not only be designed in a more cost-efficient manner, but also thinner, because such a shaped sheet-metal part is able to reliably bear higher forces, as compared to a cover, for example, which is designed as a cast part.
  • the cylinder sleeve is made of stainless steel.
  • a cylinder sleeve made of stainless steel is in particular wear- and corrosion-resistant, whereby a permanent use in an axial piston machine, which is driven by means of steam, is feasible without any problems.
  • the cylinder sleeve can also be made of a steel alloy with the following components, 3.20-3.50% by weight of C, 1.60-2.10% by weight of Si, 0.60-0.80% by weight of Mn, 0.35-0.50% by weight of P, maximally 0.06% by weight of S, 0.20-0.40% by weight of Cr, 0.30-0.50% by weight of Mo and iron for the remainder.
  • the wobble-plate chamber is closed off by a second cover, which is designed as shaped sheet-metal part.
  • the wobble-plate chamber can thus also be closed off by means of such a cover on the axially opposite side, which also contributes to designing the wobble-plate housing part more cost-efficiently and more easily here.
  • the cup and ball bearing via which the individual pistons of the axial piston machine are connected to the wobble plate, has a collar, which protrudes radially outwards.
  • the cylinder sleeve in turn, has a cut-out, which is open towards the front side and into which the cut-out of the cup and ball bearing, which protrudes radially outwards, can dip. Provision is moreover made on the cup and ball bearing itself for two sliding feet, which are arranged adjacent to the cut-out and which are supported on the guide bushing.
  • a power reduction of the axial piston machine according to the invention can hereby in particular be attained in a comparatively simple manner, because not all cylinders are used to generate power any longer, but only those, which are not closed by such a blind plug.
  • the respectively desired power of the axial piston machine can thus be influenced individually.
  • the first cover has projections, which are embossed in the direction of the vapor chamber, which reduce the volume of the vapor chamber.
  • the volume in the vapor chamber itself can be dimensioned exactly via these projections, which can also be used as reinforcement for the cover, whereby tests have shown that in particular a coordination, for example of the volume of the vapor chamber, of a displaced volume of a cylinder, as well as of a cross section of an inlet into the vapor chamber, has a significant influence on the efficiency of the axial piston machine.
  • the volume of the vapor chamber is thereby between 30 cm 3 and 100 cm 3
  • a cross section of an inlet into the vapor chamber is between 78 mm 2 and 200 mm 2
  • the displaced volume of the cylinder is between 25 cm 3 and 75 cm 3 .
  • the inlet needs to be chosen to be correspondingly large.
  • the quick provision of steam thereby also has a positive effect on a quick response behavior of the axial piston machine.
  • the displaced volume of a cylinder thereby determines the required amount of steam per actuation.
  • the volume of the vapor chamber is also linked to the speed of the rotor, which determines the number of actuations per time. Optimal conditions both with regard to the response behavior and also with regard to the efficiency can be obtained thereby within the above-mentioned ranges of the volume of the vapor chamber, of the cross section of the inlet, and of the displaced volume of the cylinder.
  • the first cover has at least two connections for connecting in particular a pressure sensor or a temperature sensor, which are attached to a flat front surface of the first cover.
  • a small sealing surface and a comparatively simple mounting can be obtained by arranging the connections on the flat surface of the first cover.
  • partial ribs are arranged on the wobble-plate housing, wherein these ribs, for example together with the wobble-plate housing part, can be designed as integral cast part.
  • the ribs themselves can thereby serve as reinforcement or also to enlarge the surface, whereby an improved cooling can be obtained. This cooling effect is in particular desired in the area of the wobble-plate housing, all the way to the discharge channels.
  • At least one of the housing parts has a corrosion-protection layer on an inner side.
  • a corrosion-protection layer in particular a corrosion process, triggered by the vapor used in the axial piston machine to drive the latter, can at least be reduced.
  • an insulating element in particular a so-called insulating plate, which surrounds at least the vapor chamber, preferably also the cylinder chamber all the way to the outlets, by forming an air gap.
  • FIG. 1 shows a sectional illustration through an axial piston machine according to the invention
  • FIG. 2 shows a sectional illustration along the sectional plane A-A
  • FIG. 3 shows a sectional illustration through the axial piston machine comprising passage openings arranged at different heights
  • FIG. 4 shows a sectional illustration through the axial piston machine comprising an inclined valve disk opening
  • FIG. 5 shows a sectional illustration through a horizontal axial piston machine comprising a lubrication line in a high-pressure area
  • FIG. 6 shows a sectional illustration through a horizontal axial piston machine comprising a lubrication line in a low-pressure area.
  • an axial piston machine 1 which can for example be part of a heat recovery system 2 in a motor vehicle, which is not illustrated in detail, has a housing 3 , in which a vapor chamber 4 , a cylinder chamber 5 and a wobble-plate chamber 6 are provided.
  • Cylinders 8 in which pistons 9 are arranged in a translationally movable manner, are provided annularly around a shaft 7 in the cylinder chamber 5 .
  • a valve disk 10 which is connected to the shaft 7 in a rotationally fixed manner, is arranged in turn in the vapor chamber 4 , comprising a valve disk opening 11 , which, in the illustration shown according to FIG.
  • a wobble plate 14 which is connected to one of the pistons 9 via a cup and ball bearing 13 each and which is coupled to the shaft 7 in a rotationally fixed manner, is arranged in the wobble-plate chamber 6 .
  • Each cup and ball bearing 13 thereby has a sliding block, which has two sliding block halves.
  • the housing 3 now has a vapor-chamber housing part 15 , a cylinder housing part 16 and a wobble-plate housing part 17 , which are connected to one another and, together, form the housing 3 .
  • a cylinder sleeve 18 comprising a radially protruding collar 19 is provided in at least one of the cylinders 8 , wherein the cylinder sleeve 18 is retained by means of its collar 19 in a cut-out 21 in the cylinder housing part 16 , which adjoins a parting plane 20 between the vapor-chamber housing part 15 and the cylinder housing part 16 .
  • the vapor chamber 4 is closed off by means of a first cover 24 , which is connected to the vapor-chamber housing part 15 , for example screwed together, and which is designed as a shaped sheet-metal part.
  • a first cover 24 which is connected to the vapor-chamber housing part 15 , for example screwed together, and which is designed as a shaped sheet-metal part.
  • the cylinder sleeve 18 can thereby be made of stainless steel and can thus not only have a comparatively high wear resistance, but also an insensitivity to corrosion, which is highly advantageous in particular for the axial piston machine 1 , which is operated by means of steam.
  • the cylinder sleeve 18 can also be provided with a coating, in particular a polymer coating or a DLC coating, which reduces the wear and/or the friction.
  • the cylinder sleeve 18 can be designed in such a way that an at least partial immersion of the wobble plate 14 is made possible. In particular a more compact design can be obtained through this.
  • the latter has at least two passage openings 22 and 22 ′ in the area of a lower dead center of the piston 9 , via which steam can be discharged.
  • the passage openings 22 , 22 ′ thereby communicate with a respectively corresponding discharge channel 23 , 23 ′, lead into the wobble-disk chamber 6 and are defined by the cylinder housing part 16 on the one side and the cylinder sleeve 18 on the other side.
  • the cylinder sleeve 18 preferably has at least a third passage opening 38 , which serves as auxiliary outlet and vents the cylinder 8 in response to a movement of the piston 9 to the upper dead center (OT).
  • the wobble-plate chamber 6 Downwards, the wobble-plate chamber 6 is closed off by a second cover 24 ′, which is designed as shaped sheet-metal part and which is illustrated in FIG. 2 .
  • the cup and ball bearing 13 has a cut-off 25 , which protrudes radially outwards
  • the cylinder sleeve 18 has a cut-out 26 , which is open towards the front side, that is, towards the bottom in the following example, into which the cut-out 25 can dip.
  • two sliding feet 27 , 27 ′ which are arranged adjacent to the cut-out 25 and which are supported on the guide bushing 33 , are arranged on the cup and ball bearing 13 , as can be seen from FIG. 2 .
  • the cut-out 26 in the cylinder sleeve 18 is thereby preferably arranged in the area of the discharge channel 23 and can also be guided therein.
  • the guide sleeve 18 can also be designed in such a way that the wobble plate 14 can dip in.
  • the cut-outs 26 , the passage openings as well as further areas of the cylinder sleeve 18 can be rounded in a hydro-erosive manner.
  • the efficiency of the axial piston machine 1 can be regulated via the variation of the number of the blind plugs 28 in a comparatively simple manner.
  • the latter is embodied so as to be substantially flat and has projections 29 embossed in the direction of the vapor chamber 4 , which reduce the volume of the vapor chamber 4 and effect an additional reinforcement of the first cover 24 .
  • the volume of the vapor chamber 4 can also be determined exactly by means of a simple design of the first cover 24 .
  • a volume of the vapor chamber 4 of between 30 cm 3 and 100 cm 3 , a cross section of an inlet 30 of between 78 mm 2 and 200 mm 2 as well as a displaced volume of a cylinder 8 of between 25 cm 3 and 75 cm 3 has proven to be particularly advantageous.
  • the three above-mentioned variables, that is, the volume of the vapor chamber 4 , the cross section of the inlet 30 and the displacement volume of the cylinder 8 are thereby dependent on one another and thus determine the response behavior of the axial piston machine 1 as well as the efficiency thereof significantly.
  • the working chamber should thereby have as little dead volume as possible, in order to improve the response behavior.
  • the inlet needs to be chosen correspondingly large. It goes without saying that the volume of the travel of the piston 9 then determines the required amount per actuation. In addition, this is then also linked to the speed, which determines the number of actuations per time. A large vapor chamber 4 would be ideal for a quick actuation, because sufficient steam is then always present and because pressure fluctuations do not result.
  • ribs 32 are arranged on the wobble-plate housing part 17 , wherein the wobble-plate housing part 17 together with the ribs 32 could for example be designed as integral cast part.
  • the ribs 32 thereby do not only reinforce the wobble-plate housing part 17 , but also enlarge the surface thereof to the outside and thus effect an improved cooling.
  • the integral embodiment of the ribs 32 with the wobble-plate housing part 17 allows for the cost-efficient production thereof.
  • a guide bushing 33 comprising a cut-out 26 ′, which is open only between the cylinder housing part 16 and the wobble-plate housing part 17 and into which the cut-out 25 dips.
  • the guide bushing 33 can thereby also be made of stainless steel and can thus be designed to be wear-resistant as well as corrosion resistant. Particularly advantageously, it can also be provided with a friction and/or wear-reducing coating.
  • the cut-out 26 ′ of the guide bushing 33 is thereby aligned with the cut-out 26 of the cylinder bushing 18 and thus forms a guide track for the cut-out 25 of the cup and ball bearing 13 , which protrudes radially outwards.
  • said guide bushing 33 has a radially protruding collar 19 ′, via which it is retained in a separating plane 20 ′ between the cylinder housing part 16 and the wobble-plate housing part 17 .
  • the guide bushing 33 is thereby inserted into the wobble-plate housing 17 from the top (based on FIG. 1 ), until it comes to rest in the separating plane 20 ′ with its collar 19 ′.
  • At least one of the housing parts 15 , 16 , 17 can additionally have a corrosion protection layer 34 , by means of which the corrosion resistance can also be increased.
  • an insulating element 35 in particular an insulating plate, can be seen, which surrounds and thus insulates at least the vapor chamber 4 and, in the case at hand, additionally also the cylinder chamber 5 by forming an air gap 36 . Cooling down the steam too quickly in the vapor chamber 4 connected with the loss of efficiency associated therewith can be prevented through this.
  • the insulating element 35 can be fixed to the housing 3 , in particular to the cover 24 , for example by means of a screw connection.
  • At least two connections 37 and 37 ′ for connecting a measuring sensor system, in particular for connecting a pressure sensor and/or a temperature sensor, which are in particular arranged in the area of a flat front surface of the first cover 24 , can moreover be arranged on the first cover 24 .
  • a flat sealing surface, which can be sealed simply or easily, can be provided through this.
  • the passage openings 22 , 22 ′ thereof are arranged at different heights.
  • Discharge channels 23 comprising subsequent lubricating points 42 can preferably be opened by means of the different height arrangement of the outlet slots (passage openings) and can thus be provided with more exhaust steam with oil.
  • the inner right passage opening 22 ′ opens a little earlier, so that the exhaust steam with oil preferably flows inwards and for example the cup and ball bearing 13 as well as the wobble disk 14 can be lubricated.
  • FIG. 4 shows a sectional illustration through the axial piston machine 1 comprising an inclined valve disk opening 11 , by means of which it can be obtained that oil flowing to the outside as a result of the centrifugal force (arrow) accumulates in the collecting area 44 , can be directed onto the underside of the valve disk 10 , and thus reaches the contact surfaces to the inlet valve seat.
  • One or a plurality of holes can thereby be arranged in the valve disk 10 .
  • the valve disk opening 11 can also take over the function of cut-out 39 , which can be seen on the left, for the mass balancing.
  • FIG. 5 shows a sectional illustration through a horizontal axial piston machine 1 comprising a lubrication line 40 in a high pressure area 41 .
  • the lubrication line 40 needs to be installed in such a way that it leads from the collecting area 44 , in which the oil drops collect, to the lubricating points 42 , here a sealing sleeve 43 .
  • the lubrication line 40 is thereby drawn so as to lead through the inlet opening 12 , which is to only serve to clarify the line routing. It goes without saying that, in reality, the lubrication line 40 does not cross the inlet opening 12 .
  • the pressure difference from the vapor chamber 4 to the surface above the sealing sleeve 41 is the driving force.
  • the lubrication line 40 can be designed as bead in the vapor-chamber housing part 15 .
  • the collection areas 44 for oil drops are thereby positioned in such a way that it can flow from there through the lubrication line 40 to locations 42 in the high-pressure area 41 , which are to be lubricated and/or sealed.
  • FIG. 6 shows a sectional illustration through an axial piston machine 1 , which is also horizontal, comprising a lubrication line 40 in a low-pressure area 45 .
  • the collection areas 44 for oil drops (by means of centrifugal force and or gravity) are thereby positioned in such a way that that it can flow from there through the lubrication line 40 to locations 42 in the low-pressure area 45 , which are to be lubricated and/or sealed.
  • the lubrication line 40 needs to be installed in such a way that it leads from the collecting area 44 , in which the oil drops collect, to the lubricating points 42 in the low-pressure area 45 .
  • the pressure difference from the vapor chamber 4 to the evaporation area is the driving force.
  • a flow restrictor 46 can be installed in order to prevent steam from flowing through the lubrication line 40 , when no oil is located therein.
  • a particularly simple and thus also cost-efficiently constructed axial piston machine 1 can be realized by means of the axial piston machine 1 according to the invention, which, due to the housing, which is designed in several parts, is also extremely flexible, in particular with regard to a possible adaptation. Moreover, it is a large advantage that, by means of the first cover 24 , which is designed as cast part, the vapor-chamber housing part 15 can also be designed more easily and more cost-efficiently as compared to common housing parts installed therein.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Reciprocating Pumps (AREA)
US15/570,354 2015-04-29 2016-04-29 Axial piston machine Abandoned US20180135413A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102015207909.0 2015-04-29
DE102015207909.0A DE102015207909A1 (de) 2015-04-29 2015-04-29 Axialkolbenmaschine
PCT/EP2016/059693 WO2016174246A1 (fr) 2015-04-29 2016-04-29 Machine à pistons axiaux

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US20180135413A1 true US20180135413A1 (en) 2018-05-17

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US15/570,354 Abandoned US20180135413A1 (en) 2015-04-29 2016-04-29 Axial piston machine

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US (1) US20180135413A1 (fr)
EP (1) EP3289218A1 (fr)
DE (1) DE102015207909A1 (fr)
WO (1) WO2016174246A1 (fr)

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Publication number Priority date Publication date Assignee Title
FR3061756B1 (fr) * 2017-01-11 2019-05-10 H.E.F. Piston pour machine thermique, machine thermique comprenant un tel piston, et procedes
DE102018202716A1 (de) * 2018-02-22 2019-08-22 Mahle International Gmbh Axialkolbenmaschine mit einem verdrehbaren Steuerscheibensitz

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