EP2255090A1 - Hubkolbenmaschine - Google Patents
HubkolbenmaschineInfo
- Publication number
- EP2255090A1 EP2255090A1 EP09711880A EP09711880A EP2255090A1 EP 2255090 A1 EP2255090 A1 EP 2255090A1 EP 09711880 A EP09711880 A EP 09711880A EP 09711880 A EP09711880 A EP 09711880A EP 2255090 A1 EP2255090 A1 EP 2255090A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive shaft
- engine according
- guide sleeve
- spring element
- reciprocating
- 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
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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/128—Driving means
-
- 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
- F04B27/1036—Component parts, details, e.g. sealings, lubrication
- F04B27/1054—Actuating elements
- F04B27/1072—Pivot mechanisms
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
Definitions
- the invention relates to a reciprocating engine, in particular for motor vehicles according to the preamble of claim 1.
- Reciprocating engines of the type discussed here are known (US 6,705,841 B2). They are used in particular in motor vehicles as a refrigerant compressor for air conditioning of the vehicle interior. They include a housing, a drive shaft, and a pivot member disposed in the housing, which includes a variable pivot angle with a plane on which the drive shaft is perpendicular, and which is pivotally connected to a driver element.
- the driver element is rotatably connected to the drive shaft, so that upon rotation of the drive shaft also results in a rotation of the driver element and the associated associated pivot member about the axis of the drive shaft.
- Such a reciprocating engine is equipped with at least one piston which is movably mounted in a preferably parallel to the drive shaft extending cylinder and cooperates with the pivot member such that upon rotation of the pivot member results in an axial stroke of the piston.
- the piston stroke is dependent on the pivot angle, that is, the angle that includes the pivot member with a plane perpendicular to the central axis of the drive shaft includes.
- This pivot angle is variable because the pivot member is pivotally connected to the driver element.
- the drive shaft is coupled, for example, to the engine of a motor vehicle; this means that the speed of the reciprocating engine is directly dependent on the engine speed.
- a variation of the swivel angle of the Swivel element and thus the piston stroke of the reciprocating engine is used to adjust the flow rate, that is, the power of the reciprocating engine, regardless of the speed can.
- the flow rate of the reciprocating engine is to be adapted to a changed power requirement.
- the pivoting element is connected by two opposite on the same axis bearing pins with a guide sleeve which is mounted axially displaceable on the drive shaft.
- a spring element By a spring element, the guide sleeve is acted upon by a force which urges the pivot member into a start position in which this is arranged substantially perpendicular to the drive shaft. So that at the start of the reciprocating engine at all a capacity can be achieved, a stop element is provided which causes the pivot member at a standstill of the motor of the motor vehicle has a minimum angle to the plane perpendicular to the central axis of the drive shaft, and at start a minimum piston stroke is present sufficient to build up the pressure needed to further control the swing angle.
- the spring element In reciprocating engines of this type, the spring element is supported on a step of the drive shaft, for which purpose it is designed so that it has a not constant over its axial extent diameter.
- the drive shaft is often provided in the region of the driver element with a larger diameter in order to absorb the forces occurring during the transmission of the rotational movement of the drive shaft to the driver element and the pivot element. In other areas of the axial extent of the drive shaft, the diameter of the shaft can then be reduced.
- Such a construction of the drive shaft has the disadvantage that their production is expensive and time-consuming.
- the object of the invention is therefore to provide a reciprocating engine, which does not have this disadvantage and comprises a simple and inexpensive to be produced drive shaft.
- the Hubkolben- machine has a drive shaft, a rigidly connected to this driver element and a drive shaft surrounding the guide sleeve, also a spring element which is supported on the one hand on the guide sleeve and on the other hand introduces forces into the drive shaft.
- the reciprocating engine is characterized in that the forces of the spring element are indirectly introduced into the drive shaft. In this way it is possible to produce the drive shaft in this area with a constant diameter along its axial extent and to dispense with a step. This makes the production of the drive shaft at the same time easy and inexpensive.
- a preferred embodiment of the reciprocating engine is characterized in that the forces of the spring element are introduced via the driver element in the drive shaft, so that the structure of the machine is very simple.
- Another preferred embodiment of the reciprocating engine is characterized by a support element which receives the force of the spring element. So it is not mandatory that To initiate forces of the spring element directly into the driver element.
- a reciprocating engine which is characterized in that the support element is mounted displaceably on the drive shaft.
- the support element is formed integrally with the driver element.
- a reciprocating engine which is characterized in that the support element has a substantially L-shaped cross-section.
- the spring element is supported on the one leg of the support element, while the other leg comprises the drive shaft.
- a reciprocating engine which is characterized in that the support element has a bearing surface, with which it is supported on the driver element.
- the driver element absorbs the spring forces caused by the spring element.
- a reciprocating engine is preferred, which is characterized in that the support element has a further bearing surface on which the spring element is supported.
- This support surface may be provided, for example, on one of the two legs of the L-shaped support element.
- the support element has a contact surface with which it the drive shaft is applied. Also, this contact surface may be provided on another leg of the L-shaped cross section.
- a reciprocating engine which is characterized in that the support element is formed as a disc. This means a simple production of the support element.
- a reciprocating engine which is characterized in that a disc is provided, which is arranged at one end of the guide sleeve.
- This disc is used to close the guide sleeve, and at the same time have a way to introduce elements such as the spring element and possibly the support element in the guide sleeve.
- at least one end of the guide sleeve such a disc can be arranged.
- the disc forms a cover or closure of the guide sleeve and is axially displaceable with this on the drive shaft.
- a reciprocating engine which is characterized in that the spring element is supported on its side facing away from the support element on the disc.
- a drive shaft 1 and a driver element 3 rigidly connected thereto are shown in the figure, which is a schematic diagram. This is aligned substantially perpendicular to the central axis 5 of the drive shaft 1 and has a spherical coupling area here 7, via which the driver element 3 cooperates with a pivot member of the reciprocating engine, which is not shown here and is generally annular.
- the figure also shows a guide sleeve 9, which surrounds the drive shaft 1, and which is aligned substantially coaxially to the central axis 5.
- the peripheral wall 11 of the guide sleeve 9 has a substantially parallel to the central axis 5 extending slot 13, due to which an axial displacement of the guide sleeve 9 on the drive shaft 1 is possible.
- the side edges of the slot 13 can serve as a guide on the one hand and rest on the driver element, on the other hand as a stop, on the basis of which the maximum axial displaceability of the guide sleeve 9 is limited to the drive shaft 1.
- At the guide sleeve 9 at least one bearing pin, not shown here, is attached to which the pivot member is pivotally mounted.
- the at least one bearing pin extends obliquely or perpendicular to the driver element 3, so that the pivot axis of the pivot member extends obliquely or perpendicular to the image plane of the figure reproduced here.
- the guide sleeve 9 is acted upon in a known manner with actuating forces and thus displaced on the drive shaft 1 in order to pivot the pivoting element, not shown here more or less with respect to a plane perpendicular to the central axis 5 of the drive shaft 1.
- the displacement of the guide sleeve 9 takes place against the force of a spring element 15, which is designed here as a helical spring which surrounds the drive shaft 1. From the figure it is clear that the spring element is arranged entirely within the guide sleeve 9.
- the spring element 15 is supported on the one hand on the guide sleeve 9.
- a disc 19 is provided which is fixedly connected to the guide sleeve 9 and serves as an abutment for the spring element 15 and as a cover of the guide sleeve.
- the spring element 15 conducts forces into the drive shaft 1, ie with its end facing away from the disc 19. From the figure it can be seen that these forces are introduced indirectly into the drive shaft. Compared with the prior art, the following results:
- a pin penetrating the drive shaft 1 can also be introduced into it, so that forces can be introduced indirectly into the drive shaft 1 from the spring element 15. It is possible to choose a pin that is longer than the diameter of the drive shaft 1. However, it can also be provided over the circumferential surface distributed shorter pins shorter, which are inserted into the drive shaft and anchored there. These pins are then preferably located on a circumferential line which is arranged in a plane on which the central axis 5 of the drive shaft 1 is perpendicular.
- a support member 25 is provided which between the disk 19 facing away from the end of the spring element 15 and the driving pin. 3 is arranged. It absorbs the forces emanating from the spring element 15 and is preferably of annular design, so that punctiform forces introduced into the driver element 3 and thus overloading of the spring element 15 are avoided.
- the support member 25 is seen in cross-section L-shaped and has a first leg 27 which is aligned substantially perpendicular to the central axis 5, and a second leg 29 which annularly surrounds the drive shaft 1, wherein the center axis of the through Leg 29 formed ring coincides with the central axis 5 of the drive shaft 1.
- the ring formed by the second leg 29 of the support member 25 has an outer diameter which is smaller than the inner diameter of the here designed as a helical spring element 15. This thus engages over the leg 29 of the support element 25.
- the drive shaft 1 facing the inside of Leg 29 serves as a contact surface 31.
- the support member 25 is formed so that it is displaceable on the drive shaft 1 in the direction of the central axis 5.
- the first leg 27 of the support element has a support surface 33 facing away from the spring element 15, with which the support element 25 bears against the driver element 3.
- the leg 27 of the support element has a further, the spring element 15 facing support surface 35, with which the support member 25 rests against the spring element 15.
- the support element 25 can also be designed as a simple disk whose thickness is so is selected, that the spring element 15 rests on a side facing away from the driver element 3 side surface.
- the support element 25 it is also possible to design the support element 25 as a ring and to provide it with at least one recess that crosses through its wall, through which the driver element 3 protrudes and can be fastened in the drive shaft 1.
- the spring element 15 can be supported on a side surface of the sleeve-shaped support member 25 and indirectly introduce forces into the drive shaft 1.
- a first further spring element can cooperate in order to improve the starting behavior of the reciprocating piston pump.
- a second additional spring element can be selected to pivot the pivoting element during operation of the reciprocating piston in such a way that, when the pump is at a standstill, it assumes a minimum pivoting angle in order to allow the reciprocating piston to start.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
- Transmission Devices (AREA)
- Valve Device For Special Equipments (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008011486 | 2008-02-21 | ||
PCT/EP2009/001222 WO2009103546A1 (de) | 2008-02-21 | 2009-02-20 | Hubkolbenmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2255090A1 true EP2255090A1 (de) | 2010-12-01 |
EP2255090B1 EP2255090B1 (de) | 2012-02-08 |
Family
ID=40459240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09711880A Not-in-force EP2255090B1 (de) | 2008-02-21 | 2009-02-20 | Hubkolbenmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US8747077B2 (de) |
EP (1) | EP2255090B1 (de) |
JP (1) | JP5722047B2 (de) |
AT (1) | ATE544951T1 (de) |
DE (1) | DE112009000090A5 (de) |
WO (1) | WO2009103546A1 (de) |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4234907A (en) * | 1979-01-29 | 1980-11-18 | Maurice Daniel | Light emitting fabric |
US4466697A (en) * | 1981-11-12 | 1984-08-21 | Maurice Daniel | Light dispersive optical lightpipes and method of making the same |
JP2626292B2 (ja) * | 1991-03-30 | 1997-07-02 | 株式会社豊田自動織機製作所 | 容量可変型斜板式圧縮機 |
US5226105A (en) * | 1991-06-27 | 1993-07-06 | Poly-Optical Products, Inc. | Fiber optic backlighting panel and dot process for making same |
DE19749727C2 (de) * | 1997-11-11 | 2001-03-08 | Obrist Engineering Gmbh Lusten | Hubkolbenmaschine mit Schwenkscheibengetriebe |
US6519401B1 (en) * | 1998-10-28 | 2003-02-11 | 3M Innovative Properties Company | Light fibers and methods for producing the same |
JP2001295757A (ja) * | 2000-04-11 | 2001-10-26 | Toyota Industries Corp | 可変容量圧縮機 |
US20050074216A1 (en) * | 2000-12-21 | 2005-04-07 | Shinichi Irie | Side-illumination type optical fiber |
DE10124033B4 (de) * | 2001-05-16 | 2009-08-20 | Daimler Ag | Hubkolbenmaschine mit einer Schiebehülse |
JP3960117B2 (ja) | 2001-08-02 | 2007-08-15 | 株式会社豊田自動織機 | 可変容量型圧縮機及び異音抑制方法 |
US6810184B2 (en) * | 2002-01-09 | 2004-10-26 | Ceram Optec Industries Inc. | Device and method to scatter optical fiber output |
US6705841B2 (en) * | 2002-03-01 | 2004-03-16 | Visteon Global Technologies, Inc. | Variable displacement compressor with stepped shaft |
DE102004041645A1 (de) | 2004-08-27 | 2006-03-16 | Zexel Valeo Compressor Europe Gmbh | Axialkolbenverdichter |
JP2006144966A (ja) | 2004-11-22 | 2006-06-08 | Jtekt Corp | 転がり軸受装置 |
US20060285981A1 (en) * | 2005-06-21 | 2006-12-21 | Visteon Global Technologies, Inc. | Swash ring compressor with spherical bearing |
US7466896B2 (en) * | 2005-10-26 | 2008-12-16 | The Hong Kong Polytechnic University | Photonic fabric display with controlled pattern, color, luminescence intensity, scattering intensity and light self-amplification |
US20080019659A1 (en) * | 2005-10-26 | 2008-01-24 | Xiaoming Tao | Photonic fabric display with controlled graphic pattern, color, luminescence intensity, and light self-amplification |
-
2009
- 2009-02-20 US US12/864,735 patent/US8747077B2/en not_active Expired - Fee Related
- 2009-02-20 DE DE112009000090T patent/DE112009000090A5/de not_active Withdrawn
- 2009-02-20 EP EP09711880A patent/EP2255090B1/de not_active Not-in-force
- 2009-02-20 AT AT09711880T patent/ATE544951T1/de active
- 2009-02-20 WO PCT/EP2009/001222 patent/WO2009103546A1/de active Application Filing
- 2009-02-20 JP JP2010547113A patent/JP5722047B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2009103546A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20100316510A1 (en) | 2010-12-16 |
JP2011512482A (ja) | 2011-04-21 |
JP5722047B2 (ja) | 2015-05-20 |
ATE544951T1 (de) | 2012-02-15 |
US8747077B2 (en) | 2014-06-10 |
EP2255090B1 (de) | 2012-02-08 |
DE112009000090A5 (de) | 2011-04-21 |
WO2009103546A1 (de) | 2009-08-27 |
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