US20010006602A1 - Compressor - Google Patents

Compressor Download PDF

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Publication number
US20010006602A1
US20010006602A1 US09/742,959 US74295900A US2001006602A1 US 20010006602 A1 US20010006602 A1 US 20010006602A1 US 74295900 A US74295900 A US 74295900A US 2001006602 A1 US2001006602 A1 US 2001006602A1
Authority
US
United States
Prior art keywords
sub
mounting portion
housing
sub mounting
compressor according
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
US09/742,959
Other languages
English (en)
Inventor
Masahiko Okada
Hiroaki Kayukawa
Kazushige Murao
Shigeyuki Hidaka
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.)
Toyota Industries Corp
Original Assignee
Toyoda Jidoshokki Seisakusho KK
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 Toyoda Jidoshokki Seisakusho KK filed Critical Toyoda Jidoshokki Seisakusho KK
Assigned to KABUSHIKI KAISHA TOYODA JIDOSHOKKI SEISAKUSHO reassignment KABUSHIKI KAISHA TOYODA JIDOSHOKKI SEISAKUSHO ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HIDAKA, SHIGEYUKI, KAYUKAWA, HIROAKI, MURAO, KAZUSHIGE, OKADA, MASAHIKO
Publication of US20010006602A1 publication Critical patent/US20010006602A1/en
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
    • F04B27/10—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
    • F04B27/1081—Casings, housings
    • 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
    • F04B39/121—Casings

Definitions

  • This invention relates to a compressor which has a peculiar mounting construction to a mounted body.
  • a compressor is mounted to a mounted body such an engine in a vehicle by various types of mounting constructions. On example of them is disclosed in Japanese U.M. Laid-Open No. 2-43478.
  • a compressor has a mounting portion having a fitting hole, and an engaging pin provided below the fitting hole, while a mounted body has a screw hole into which a bolt is inserted, and a pin hole into which the engaging pin is inserted.
  • the engaging pin is engaged with the pin hole for a provisional fixing.
  • This mounting construction can make the mounting of the compressor to the mounted body easy, and reduce load of workers required for a mounting work.
  • Japanese U.M. Laid-Open No. 7-14178 discloses an another type of mounting construction of a compressor.
  • This compressor includes a first mounting portion having a fitting hole, and a second mounting portion of U-shape. When the compressor is mounted to a mounted body, the second mounting portion is engaged with a bolt provided for fixing the compressor to the mounted body.
  • This mounting construction can also render the same advantage as the above.
  • a special apparatus such as a fuel injection control device or an ignite timing control device is set in an engine room, which limits the space for setting an apparatus driven by the engine such as the compressor.
  • an engine room is small. This is also limits the setting space for the compressor.
  • a compactness of the mounting portion corresponding to the limited setting space weakens the mounting portion, deforming a housing, and causing troubles of the compressor.
  • a main body of the compressor can be hardly made small excessively.
  • a radial dimension of the compressor may be shortened by positioning the mounting portion near to a cylinder bore in a radial direction of the housing.
  • the cylinder bore may be deformed by a fastening force applied to the mounting portion upon the mounting of the compressor to the mounted body.
  • the present invention has been made to provide a compressor having a mounting construction which can be mounted to the mounted body even in a limited setting space in the vehicle, and which hardly causes a bad sliding of the piston.
  • inventors of the present invention have hit upon to mount the compressor to the mounted body strongly by a main mounting portion at a point remote from the piston, and weakly by a sub mounting portion at a point near to the piston.
  • the compressor is comprised of a bore housing including plural cylinder chambers spaced in a circumferential direction thereof, plural pistons each being slidably inserted into the cylinder chamber, a driving shaft disposed coaxialy with the bore housing and a side housing including a driving means driven by the driving shaft to drive the pistons.
  • the side housing has, on an outer peripheral surface thereof, at least two main mounting portions each having a fitting portion which extends in a tangential direction of the side housing and into which a main fixing bolt means is inserted; and the bore housing has, on an outer peripheral surface thereof, at least one sub mounting portions having a fitting portion which extends in a tangential direction of the bore housing and into which a sub fixing bolt means is inserted.
  • the compressor of the present invention is mounted to the mounted body strongly by the at least two main mounting portions formed on the side housing, and is weakly mounted thereto by the at least one sub mounting portion formed on the bore housing.
  • the compressor can be fixed to the mounted body by the main mounting portions with being held by the sub mounting portion, without being tilted or swayed even in the limited setting space. Even in the compressor in which the sub mounting portion is disposed near to the cylinder bore in the radial direction thereof, the sub mounting portion is mounted to the mounted body by the sufficiently small fastening force. As a result, the deformation of the bore housing upon the mounting can be prevented.
  • the present invention can have various embodying modes to be explained below.
  • the bore housing of the compressor can have a cylindrical shape, and the side housing to be connected therewith can have a cap or container shape.
  • a driving shaft rotatably supported by the both housings etc. is rotated by a driving source provided outside the housings.
  • plural pistons are provided via shoe connecting portions. The pistons reciprocately slide in cylinder chambers formed in the cylinder block to compressor the refrigerant gas in the bore housing.
  • two main mounting portions can be provided on the side housing at two positions facing to the mounted body and separated by a predetermined distance. They can be positioned at the same position or at the different position in an axial direction of the side housing, and can be disposed to be parallel or to make a predetermined angle (eg. right angle) in a circumferential direction thereof.
  • the main mounting portion together with the main fixing bolt means such as bolts, fixes the compressor to the mounted body strongly.
  • the side housing of cap shape having large rigidity does not deform even when large fastening force is applied to the main mounting portions by the main fixing bolt means.
  • one main mounting portion can be provided on the bore housing at an upper portion or a lower portion facing to the mounted body.
  • Two sub mounting portions can be provided at the upper and lower portions of the bore housing. They can be disposed at the same position or the different positions in the axial direction of the bore housing, and can be disposed to be parallel or to make a predetermined angle in the circumferential direction thereof. In the circumferential direction, the main mounting portions and the sub mounting portion can be disposed at the same position or the different position.
  • One or two sub mounting portion(s) fixes, together with the sub fixing bolt means such as a bolt, the compressor to the mounted body weakly. Small fastening force applied to the sub mounting portion by the sub fixing bolt means does not deform the bore housing even if it has the small rigidity.
  • the sub mounting portion protrudes radially outwardly from an outer peripheral surface of the bore housing, having a predetermined width in the axial direction thereof. It can have a small dimension or large dimension in a tangential direction of the bore housing, to respectively have a thin-plate shape or a rod shape.
  • the thin-plate shape mounting portion can be preferably shifted form a top portion of the bore housing in the circumferential direction thereof, and can have a thickness smaller than the fitting portion (inserting hole or fitting groove). Due to the orientation of the fitting portion, the sub mouning portion may be deformed by the sub fixing bolt means, but the bore housing may not be deformed.
  • the sub mounting portion is preferably disposed, relative to a contacted point between the fitting portion extending tangentially and the bore housing, to be separated by the distance as small as possible. Such relative position can shorten the distance between the sub mounting portion and the mounted body, so that the compressor can be mounted to the mounted body even in the limited setting space such as the engine room.
  • the sub fixing bolt means can be made of a metal such as a steel having a large rigidity, and can be comprised of a bushing and a bolt.
  • the bushing abuts at one portion thereof to the sub mounting portion and abuts to the outer peripheral surface of the cylinder block at other portion thereof.
  • the bolt is fitted into an axial hole of the bushing and the fitting portion of the sub mounting portion.
  • the bushing can be comprised of, for example, a main body and one flange or two flanges provided at one end or both ends thereof to have a L shape or a U shape.
  • a portion of the main body facing to the outer peripheral surface of the bore housing is notched.
  • the notch portion allows the bushing to be come closer to the outer peripheral surface of the bore housing, whereby the setting space can be utilized effectively.
  • the mounting work can be easily carried out by merely fastening the bolt by a fastening tool.
  • the sub fixing bolt means can be comprised of a bolt having a taped female screw and a tapered male screw to be screwed thereinto.
  • the tapered female screw is formed on an inner peripheral surface of a hollow portion formed in a head portion. With screwing of the tapered male screw into the tapered female screw, an outer diameter of the head portion increases to be abutted to the inserting hole by pressure.
  • the tapered male screw is inserted into the tapered female screw which is inserted into the inserting hole. For this reason, the bolt does not protrude from the sub mounting portion in the thickness direction thereof, which makes the mounting work in the limited setting space easier.
  • the sub fixing bolt means can be comprised of a bolt attached to the mounted body by screwing etc. and extended therefrom to be fitted into the fitting hole.
  • the compressor can be fixed to the mounted body by merely engaging or latching the sub mounting portion with the sub fixing bolt means having been provisionally fixed to the mounting body in advance.
  • the sub fixing bolt means can be comprised of a stud bolt extended from the mounted body and fitted into the fitting groove, and a nut to be screwed thereinto. This sub fixing bolt means can omit the bolt to be fitted into the fitting groove.
  • the rod-shaped sub mounting portion can be comprised of a protruded portion and a fixed cylinder body.
  • the protruded portion protrudes radially outwardly from the outer periphery of the bore housing and extending in the tangential direction, and has a sliding hole extending in a longitudinal direction thereof.
  • the fixed cylinder body is inserted into the sliding hole slidably in the axial direction.
  • the sub fixing bolt means is inserted into the fixed cylinder body to be fixed to the mounted body. Upon the fixing, the fixing force by the sub fixing bolt means is mainly applied to the fixed cylinder body not to deform the bore housing.
  • FIG. 1 is a longitudinal sectional view of a compressor according to an embodiment 1 ;
  • FIG. 2 is a view observed along a line II-II in FIG. 1, and shows a main mounting portion of the compressor;
  • FIG. 3 is a view observed along a line III-III in FIG. 1, and shows a sub mounting portion of the compressor;
  • FIG. 4 is a cross sectional view showing a sub mounting portion of a compressor according to an embodiment 2;
  • FIG. 5 is a front view of a compressor according to an embodiment 3;
  • FIG. 6 is a cross sectional view of a the sub mounting portion according to the embodiment 3.
  • FIG. 7 is a front view of a compressor according to an embodiment 4.
  • FIG. 8 is a cross sectional view of a sub mounting portion according to the embodiment 4.
  • FIG. 9 is a cross sectional view showing a sub mounting portion of a compressor according to the embodiment 5;
  • FIG. 10 is cross sectional view showing a sub mounting portion of a compressor according to the embodiment 6;
  • FIG. 11 is cross sectional view showing a sub mounting portion of a compressor according to the embodiment 7.
  • a cylinder block (bore housing) 10 has therein plural cylinder bores (cylinder chambers) 1 and an axial hole 2 .
  • a cap-shaped front housing (side housing) 20 is joined.
  • a rear housing 30 is joined via a sucking valves, valve plate, discharge valves and a retainer (not shown).
  • the front housing 20 is formed an axial hole 21 .
  • a driving shaft 12 is disposed in a containing chamber 22 formed by the front end of the cylinder block 10 and the front housing 20 .
  • the driving shaft 12 is rotatably supported by the axial hole 21 via a seal 23 and a radial bearing 24 , and by the axial hole 2 via a radial bearing 3 .
  • a swash plate 16 is mounted on the driving shaft 12 at a throughhole 18 .
  • a lug plate 26 is fixed to the driving shaft 12 and supported by the front housing 20 via a thrust bearing 25 .
  • Each of a pair of arms 27 protruded from the lug plate 26 rearwardly is formed a guiding hole 26 having a cylindrical inner surface.
  • a pair of guiding pins 29 protrude toward each of the arms 27 .
  • Each of the guiding pins 29 is provided, at a tip end thereof, a guiding portion 11 having a spherical outer surface which rotates with sliding in the guiding hole 28 .
  • plural pistons 19 are disposed via a shoes 15 engaging with an outer periphery of the swash plate 16 , being contained within each of the cylinder bore 1 .
  • a pulley 41 is fixed to the driving shaft 12 via a bolt 42 and is rotatably supported by the front housing via a bearing 43 .
  • a belt 44 is wound on the pulley 41 .
  • main mounting portions 50 and a sub mounting portion 60 are formed on an outer peripheral surface of the housing. As shown in FIGS. 1 and 2, the main mounting portions 50 protrude radially outwardly from an outer peripheral surface of the cap-shaped front housing 20 at a boundary area between a cylinder portion 20 a and a lid portion 20 b .
  • One (upper) main mounting portion 50 is formed at a top portion 20 c and other (lower) main mounting portion 50 is formed at a bottom portion 20 d of the front housing 20 .
  • Each main mounting portion 50 has a rod shape of rectangular cross-section, and extends tangentially by a predetermined length, to be parallel each other.
  • Each main mounting portion 50 has a inserting hole 51 having a circular shape in cross-section and extending in an axial direction thereof (tangential direction of the front housing 20 ).
  • a bolt 53 is inserted into the inserting hole 51 via a washer 52 to be screwed into an engine (mounted body) EG at a tip end thereof.
  • two main mounting portions 50 fix the front housing 20 to the engine EG strongly.
  • the sub mounting portion 60 protruding radially outwardly is formed on an outer peripheral surface of the cylinder block 10 , at a position near to the rear housing 30 in the axial direction. As shown in FIG. 3, the sub mounting portion 60 is sligtly shifted or offset from a top portion 10 a , protruding upwardly up to a same level (height) as an upper end of the main mounting portion 50 (refer to FIG. 1).
  • the sub mounting portion 60 has a width in the axial direction of the cylinder block 10 same as that of the main mounting portion 50 , and has small length (thickness) in the tangential direction thereof to have a plate shape.
  • the sub mounting portion 60 is formed at a position corresponding to one end of the main mounting portion 50 .
  • the thickness direction of the sub mounting portion 60 coincides with the longitudinal direction of the main mounting portion 50 .
  • a inserting hole 61 of circular shape in cross-section is formed in the sub mounting portion 60 .
  • a bushing 62 made of an iron and having a L-shape longitudinal section is disposed between one end surface of the sub mounting portion 60 and the outer peripheral surface of the cylinder block 10 . It is comprised of a main portion 62 a of semi-circular in cross section, and a bent portion 6 2 b extended from one end of the main body 62 a by the right angle and is provided with a circular throughhole.
  • the other end of the main body 62 a abuts to one end surface of the sub mounting portion 60
  • the main body 62 faces to the outer peripheral surface of the cylinder block 10
  • a tip end of the bent portion 62 b abuts to the outer surface of the cylinder block 10 .
  • a bolt 63 inserted into the bent portion 62 b via a washer 64 to be parallel to the main portion 62 a is screwed into the engine EG at a tip end thereof.
  • embodiment 2 to embodiment 7 of the present invention will be explained. They differ from the embodiment 1 only in a construction of the sub mounting portion.
  • a sub mounting portion 60 has a construction substantially same as that of the embodiment 1.
  • a bushing 62 is comprised of a plate-shaped main body 62 a , and a pair of flange portions 62 b 1 and 62 b 2 bent by the right angle at both ends of the main body 62 a , to have a U-shape in longitudinal section.
  • One flange portion 62 b 1 abuts to the outer peripheral surface of the cylinder block 10 at a position remote from the sub mounting portion 60
  • other flange portion 62 b 2 abuts to the side surface of the sub mounting portion 60 and the outer peripheral surface of the cylinder block 10 .
  • the cylinder block 10 is fixed to the engine EG by the bushing 62 and the bolt 63 in the same way as the embodiment 1.
  • the sub mounting portion 60 can render advantages same as that of the embodiment 1, and is excellent in simple construction of the bushing 62 .
  • a sub mounting portion 70 is slightly shifted on a peripheral surface of the cylinder block 10 from a top portion 10 a in a circumferential direction. It protrudes radially outwardly, having a predetermined width in an axial direction, and being thin in a tangential direction.
  • the sub mounting portion 70 has a U-shaped groove 71 extended in the thickness direction thereof (tangential direction of the cylinder block 10 ).
  • a bolt 73 fitted into the fitting groove 71 via a washer 72 is screwed into an engine EG at a tip end thereof.
  • the cylinder block 10 is fixed to the engine EG.
  • a head portion of the bolt 73 is contained within a space of triangle shape in cross-section formed by the cylinder 10 and the sub mounting portion 70 , which is convenient for the effective utilization of the space.
  • a sub mounting portion 60 same as the above sub mounting portion 60 is provided, while near to a bottom portion 10 b a sub mounting portion 70 same as the above sub mounting portion 70 is provided.
  • a bolt 73 is fitted via a washer 72 to be screwed into an engine EG at a tip end thereof.
  • the sub mounting portion 60 not having been fixed to the engine EG in this embodiment 4 can be fixed therewith as ocassion demands.
  • the sub mounting portion 70 can, in addition to the advantages of the embodiment 3, use the space below the cylinder block 10 effectively.
  • a bolt 81 having a head portion and a leg portion is fitted into an fitting groove 61 of a sub mounting portion 60 same as the sub mounting portion 60 of the embodiment 1.
  • the head portion is formed a hollow hole with an axial slit to form a tapered female screw 80 on an inner peripheral surface thereof.
  • the leg portion is screwed into the engine EG. Screwing a tapered male screw 82 with the female screw 80 expands the female 80 radially outwardly to be abutted to the fitting groove 61 of the sub mounting portion 60 with pressure.
  • the male screw 82 is screwed into the female screw 80 which is in turn screwed into the fitting groove.
  • the cylinder block 10 is fixed to the engine EG by the sub mounting portion 60 .
  • the tapered male screw 82 and the female screw 80 do not protrude axially from the sub mounting portion 60 in the thickness direction thereof.
  • a stud bolt 90 extends from an engine EG. With a tip end of the bolt 90 protruded from the fitting groove 91 , a nut 91 is screwed via a washer 92 .
  • the sub mounting portion 60 can fix the cylinder block 10 to the engine EG even in the narrow setting space, and can omit the bolt.
  • a rod-shaped sub mounting portion 95 is provided around a top portion 10 a of a cylinder block 10 .
  • the sub mounting portion 95 protrudes radially outwardly from an outer peripheral surface of the cylinder block 10 , having a predetermined width in an axial direction, and extending in a tangential direction.
  • a sleeve (fixed cylindrical body) 97 is slidably inserted in a sliding hole 96 penetrating the sub mounting portion 95 in the axial direction thereof (tangential direction of the cylinder block 10 ).
  • the sleeve 97 made of an iron has a cylindrical shape and is provided with a flange portion 97 a at one end thereof.
  • the elongated sleeve 97 is inserted into the sliding hole 96 elongated in the tangential direction of the cylinder block 10 . Due to such construction, the fastening force to the sub mounting portion 95 by the bolt 99 is hardly applied to the cylinder bore 10 . For this reason, there is no or only small fear for deformation of the cylinder block 10 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
US09/742,959 1999-12-27 2000-12-20 Compressor Abandoned US20010006602A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11-369258 1999-12-27
JP36925899A JP2001182650A (ja) 1999-12-27 1999-12-27 圧縮機

Publications (1)

Publication Number Publication Date
US20010006602A1 true US20010006602A1 (en) 2001-07-05

Family

ID=18493974

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/742,959 Abandoned US20010006602A1 (en) 1999-12-27 2000-12-20 Compressor

Country Status (3)

Country Link
US (1) US20010006602A1 (ja)
EP (1) EP1113172A3 (ja)
JP (1) JP2001182650A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060275148A1 (en) * 2003-02-21 2006-12-07 Satoshi Watanabe Reciprocating compressor
CN103362773A (zh) * 2012-03-27 2013-10-23 株式会社丰田自动织机 压缩机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003172266A (ja) * 2001-12-05 2003-06-20 Zexel Valeo Climate Control Corp 冷媒圧縮機
JP4595942B2 (ja) * 2004-12-06 2010-12-08 ダイキン工業株式会社 圧縮機
CN101072945B (zh) 2004-12-06 2011-06-15 大金工业株式会社 压缩机
EP2390503B1 (en) 2010-05-26 2013-07-10 Valeo Thermal Systems Japan Corporation Compressor for vehicle air-conditioners
JP5637035B2 (ja) * 2011-03-25 2014-12-10 株式会社豊田自動織機 ポンプ

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5783790A (en) * 1980-11-10 1982-05-25 Sankyo Denki Co Ltd Compressor for cooling vehicles
EP0307851B1 (en) * 1987-09-14 1992-03-25 Sanden Corporation Mounting mechanism for an automotive air conditioning compressor
JP3512857B2 (ja) * 1994-06-10 2004-03-31 株式会社デンソー スクロール型圧縮機及びそのマウント方法
US5795139A (en) * 1995-03-17 1998-08-18 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Swash plate type refrigerant compressor with improved internal lubricating system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060275148A1 (en) * 2003-02-21 2006-12-07 Satoshi Watanabe Reciprocating compressor
CN103362773A (zh) * 2012-03-27 2013-10-23 株式会社丰田自动织机 压缩机

Also Published As

Publication number Publication date
EP1113172A3 (en) 2001-10-24
EP1113172A2 (en) 2001-07-04
JP2001182650A (ja) 2001-07-06

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Legal Events

Date Code Title Description
AS Assignment

Owner name: KABUSHIKI KAISHA TOYODA JIDOSHOKKI SEISAKUSHO, JAP

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OKADA, MASAHIKO;KAYUKAWA, HIROAKI;MURAO, KAZUSHIGE;AND OTHERS;REEL/FRAME:011405/0668

Effective date: 20001205

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION