JP4799380B2 - Compressor - Google Patents

Compressor Download PDF

Info

Publication number
JP4799380B2
JP4799380B2 JP2006323423A JP2006323423A JP4799380B2 JP 4799380 B2 JP4799380 B2 JP 4799380B2 JP 2006323423 A JP2006323423 A JP 2006323423A JP 2006323423 A JP2006323423 A JP 2006323423A JP 4799380 B2 JP4799380 B2 JP 4799380B2
Authority
JP
Japan
Prior art keywords
bearing
shaft
housing
seal device
compression mechanism
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.)
Expired - Fee Related
Application number
JP2006323423A
Other languages
Japanese (ja)
Other versions
JP2008138539A (en
Inventor
安里 榎本
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.)
Sanden Holdings Corp
Original Assignee
Sanden Corp
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 Sanden Corp filed Critical Sanden Corp
Priority to JP2006323423A priority Critical patent/JP4799380B2/en
Publication of JP2008138539A publication Critical patent/JP2008138539A/en
Application granted granted Critical
Publication of JP4799380B2 publication Critical patent/JP4799380B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Description

本発明は、回転軸と、回転軸により駆動される圧縮機構と、回転軸と圧縮機構とを収容するハウジングと、回転軸のハウジング貫通部に配設された軸受と軸封装置とを備え、軸受は軸封装置よりも圧縮機構寄り配設されて回転軸を回転可能に支持し、軸封装置は回転軸のハウジング貫通部をシールし、軸受と軸封装置とに挟まれた空間と軸受よりも圧縮機構寄りの空間との間の連通路がハウジングに形成された圧縮機に関するものである。 The present invention includes a rotating shaft, a compression mechanism driven by the rotating shaft, a housing that accommodates the rotating shaft and the compression mechanism, a bearing and a shaft seal device that are disposed in a housing through portion of the rotating shaft, The bearing is disposed closer to the compression mechanism than the shaft seal device, and rotatably supports the rotating shaft. The shaft seal device seals the housing through portion of the rotating shaft, and the space between the bearing and the shaft seal device and the bearing. The present invention relates to a compressor in which a communication path between a space closer to the compression mechanism is formed in the housing.

回転軸と、回転軸により駆動される圧縮機構と、回転軸と圧縮機構とを収容するハウジングと、回転軸のハウジング貫通部に配設された軸受と軸封装置とを備え、軸受は軸封装置よりも圧縮機構寄り配設されて回転軸を回転可能に支持し、軸封装置は回転軸のハウジング貫通部をシールし、軸受と軸封装置とに挟まれた空間と軸受よりも圧縮機構寄りの空間との間の連通路がハウジングに形成された圧縮機が特許文献１等に開示されている。
上記圧縮機においては、回転軸と軸受との間の隙間、ハウジングに形成された連通路の何れか一方を介して、軸受よりも圧縮機構寄りの空間から軸受と軸封装置とに挟まれた空間に潤滑オイルが供給され、他方を介して軸受よりも圧縮機構寄りの空間へ潤滑オイルが戻される。
特開平１１−１１７８６６号公報 A rotation shaft; a compression mechanism driven by the rotation shaft; a housing that accommodates the rotation shaft and the compression mechanism; a bearing disposed in a housing through portion of the rotation shaft; and a shaft seal device. The rotating shaft is rotatably supported by being arranged closer to the compression mechanism than the device, and the shaft seal device seals the housing through-portion of the rotation shaft, and the compression mechanism rather than the space sandwiched between the bearing and the shaft seal device and the bearing. A compressor in which a communication path between a close space and a housing is formed in a housing is disclosed in Patent Document 1 and the like.
In the above compressor, the bearing is sandwiched between the bearing and the shaft seal device from a space closer to the compression mechanism than the bearing through any one of the clearance between the rotating shaft and the bearing and the communication path formed in the housing. Lubricating oil is supplied to the space, and the lubricating oil is returned to the space closer to the compression mechanism than the bearing through the other.
Japanese Patent Laid-Open No. 11-117866

車輛空調装置用のクラッチレス圧縮機においては、空調停止時でも車輛エンジンが作動している限り、圧縮機の運転は継続される。この場合、冷媒循環量は減少するので圧縮機内の潤滑オイル循環量が減少し、軸受と軸封装置とに挟まれた空間に供給される潤滑オイル量が減少し、軸封装置が潤滑不足となって機能低下する可能性がある。
本発明は上記問題に鑑みてなされたものであり、回転軸と、回転軸により駆動される圧縮機構と、回転軸と圧縮機構とを収容するハウジングと、回転軸のハウジング貫通部に配設された軸受と軸封装置とを備え、軸受は軸封装置よりも圧縮機構寄り配設されて回転軸を回転可能に支持し、軸封装置は回転軸のハウジング貫通部をシールし、軸受と軸封装置とに挟まれた空間と軸受よりも圧縮機構寄りの空間との間の連通路がハウジングに形成された圧縮機であって、軸受と軸封装置とに挟まれた空間に供給される潤滑オイル量が減少しても、軸封装置が潤滑不足となり難い圧縮機を提供することを目的とする。 In a clutchless compressor for a vehicle air conditioner, the operation of the compressor is continued as long as the vehicle engine is operating even when air conditioning is stopped. In this case, the amount of refrigerant circulating decreases, the amount of lubricating oil circulating in the compressor decreases, the amount of lubricating oil supplied to the space between the bearing and the shaft seal device decreases, and the shaft seal device becomes insufficiently lubricated. May be reduced.
The present invention has been made in view of the above-described problems, and is provided in a rotating shaft, a compression mechanism driven by the rotating shaft, a housing that houses the rotating shaft and the compression mechanism, and a housing penetration portion of the rotating shaft. The bearing is disposed closer to the compression mechanism than the shaft seal device, and rotatably supports the rotating shaft. The shaft seal device seals the housing through portion of the rotating shaft, and the bearing and shaft A compressor in which a communication path between a space sandwiched between the sealing device and a space closer to the compression mechanism than the bearing is formed in the housing, is supplied to the space sandwiched between the bearing and the shaft sealing device An object of the present invention is to provide a compressor in which the shaft seal device is less likely to be insufficiently lubricated even when the amount of lubricating oil is reduced.

上記課題を解決するために、本発明においては、回転軸と、回転軸により駆動される圧縮機構と、回転軸と圧縮機構とを収容するハウジングと、回転軸のハウジング貫通部に配設された軸受と軸封装置とを備え、軸受は軸封装置よりも圧縮機構寄り配設されて回転軸を回転可能に支持し、軸封装置は回転軸のハウジング貫通部をシールし、軸受と軸封装置とに挟まれた空間と軸受よりも圧縮機構寄りの空間との間の連通路がハウジングに形成され、回転軸に於ける、軸受と軸封装置とに挟まれた空間内で延在する部位、に周溝が形成され、当該周溝に嵌合して回転軸の前記部位に周壁が立設されていることを特徴とする圧縮機を提供する。
本発明に係る圧縮機においては、回転軸に於ける、軸受と軸封装置とに挟まれた空間内で延在する部位、に周壁が立設されることにより、周壁と軸封装置の間にオイル溜まりが形成される。当該オイル溜まりに潤滑オイルが貯留されるので、軸受と軸封装置とに挟まれた空間に供給される潤滑オイル量が減少しても、軸封装置は潤滑不足となり難い。
In order to solve the above-described problems, in the present invention, a rotating shaft, a compression mechanism driven by the rotating shaft, a housing that accommodates the rotating shaft and the compression mechanism, and a housing penetrating portion of the rotating shaft are disposed. A bearing and a shaft seal device. The bearing is disposed closer to the compression mechanism than the shaft seal device and rotatably supports the rotary shaft. The shaft seal device seals the housing through-portion of the rotary shaft, and the bearing and the shaft seal. A communication path between a space sandwiched between the device and a space closer to the compression mechanism than the bearing is formed in the housing, and extends in the space sandwiched between the bearing and the shaft seal device on the rotating shaft. Provided is a compressor characterized in that a peripheral groove is formed in a part, and a peripheral wall is erected in the part of the rotating shaft by fitting in the peripheral groove.
In the compressor according to the present invention , the peripheral wall is erected in the portion of the rotating shaft that extends in the space between the bearing and the shaft seal device, so that the space between the peripheral wall and the shaft seal device is increased. An oil reservoir is formed on the surface. Since the lubricating oil is stored in the oil reservoir, even if the amount of lubricating oil supplied to the space sandwiched between the bearing and the shaft seal device decreases, the shaft seal device is unlikely to be insufficiently lubricated.

本発明により、軸受と軸封装置とに挟まれた空間に供給される潤滑オイル量が減少しても、軸封装置が潤滑不足となり難い圧縮機が提供される。 According to the present invention, even if the amount of lubricating oil supplied to the space between the bearing and the shaft seal device decreases, the compressor in which the shaft seal device is unlikely to become insufficiently lubricated is provided.

本発明の実施例に係る圧縮機を説明する。
図１に示すように、車輛空調装置用のクラッチレス斜板式圧縮機Ａは、回転軸１と、ロータ２と斜板３とピストン４とを有し回転軸１により駆動される圧縮機構５と、回転軸１と圧縮機構５とを収容するハウジング６とを備えている。ハウジング６内にロータ２と斜板３とを収容するクランク室７が形成されている。
ハウジングのボス部６ａを貫通して回転軸１がハウジング６外へ延びている。回転軸１のハウジング貫通部に、軸受８と軸封装置９とが配設されている。軸受８は軸封装置９よりも圧縮機構５寄り配設されて回転軸１を回転可能に支持し、軸封装置９は回転軸１のハウジング貫通部をシールしている。
軸受８と軸封装置９とに挟まれた空間１０と軸受８よりも圧縮機構５寄りの空間であるクランク室７との間の連通路１１がハウジング６に形成されている。
回転軸１の空間１０内で延在する部位に周壁１２が立設されている。 A compressor according to an embodiment of the present invention will be described.
As shown in FIG. 1, a clutchless swash plate compressor A for a vehicle air conditioner includes a rotary shaft 1, a rotor 2, a swash plate 3, and a piston 4, and a compression mechanism 5 driven by the rotary shaft 1. A housing 6 that accommodates the rotating shaft 1 and the compression mechanism 5 is provided. A crank chamber 7 for accommodating the rotor 2 and the swash plate 3 is formed in the housing 6.
The rotating shaft 1 extends outside the housing 6 through the boss 6a of the housing. A bearing 8 and a shaft seal device 9 are disposed in the housing through portion of the rotary shaft 1. The bearing 8 is disposed closer to the compression mechanism 5 than the shaft seal device 9 and rotatably supports the rotary shaft 1, and the shaft seal device 9 seals the housing penetration portion of the rotary shaft 1.
A communication path 11 is formed in the housing 6 between a space 10 sandwiched between the bearing 8 and the shaft seal device 9 and a crank chamber 7 which is a space closer to the compression mechanism 5 than the bearing 8.
A peripheral wall 12 is erected at a portion extending in the space 10 of the rotating shaft 1.

軸受１３が、ハウジングのボス部６ａに外嵌固定されている。プーリー１４が、軸受１３介してハウジングのボス部６ａにより回転可能に支持されている。プーリー１４は、電磁クラッチを介することなく、トルクリミッター１５を介して、ハウジング外へ延びた回転軸１の端部に連結すると共に、図示しない外部駆動源に作動係合している。 A bearing 13 is fitted and fixed to the boss 6a of the housing. The pulley 14 is rotatably supported by the boss 6a of the housing via the bearing 13. The pulley 14 is connected to the end of the rotary shaft 1 extending outside the housing via a torque limiter 15 without using an electromagnetic clutch, and is operatively engaged with an external drive source (not shown).

クラッチレス斜板式圧縮機Ａにおいては、回転軸１と軸受８との間の隙間、ハウジング６に形成された連通路１１の何れか一方を介して、クランク室７から軸受８と軸封装置９とに挟まれた空間１０に潤滑オイルが供給され、他方を介してクランク室７へ潤滑オイルが戻される。
車輛空調装置用のクラッチレス圧縮機Ａにおいては、空調停止時でも車輛エンジンが作動している限り、圧縮機の運転は継続される。この場合、冷媒循環量は減少するのでクランク室７内の潤滑オイル循環量が減少し、軸受８と軸封装置９とに挟まれた空間１０に供給される潤滑オイル量が減少する。しかし、回転軸１の空間１０内で延在する部位に周壁１２が立設されることにより、周壁１２と軸封装置９との間にオイル溜まりが形成され、当該オイル溜まりに潤滑オイルが貯留されるので、空間１０に供給される潤滑オイル量が減少しても、軸封装置９は潤滑不足となり難い。 In the clutchless swash plate type compressor A, the bearing 8 and the shaft seal device 9 are connected from the crank chamber 7 through any one of the gap between the rotary shaft 1 and the bearing 8 and the communication path 11 formed in the housing 6. Lubricating oil is supplied to the space 10 sandwiched between the two, and the lubricating oil is returned to the crank chamber 7 through the other.
In the clutchless compressor A for the vehicle air conditioner, the operation of the compressor is continued as long as the vehicle engine is operating even when the air conditioning is stopped. In this case, since the refrigerant circulation amount decreases, the lubricating oil circulation amount in the crank chamber 7 decreases, and the amount of lubricating oil supplied to the space 10 sandwiched between the bearing 8 and the shaft seal device 9 decreases. However, the peripheral wall 12 is erected at a portion extending in the space 10 of the rotating shaft 1, whereby an oil reservoir is formed between the peripheral wall 12 and the shaft seal device 9, and lubricating oil is stored in the oil reservoir. Therefore, even if the amount of lubricating oil supplied to the space 10 decreases, the shaft seal device 9 is unlikely to be insufficiently lubricated.

本発明は、クラッチレス斜板式圧縮機のみならず、クラッチレス揺動板式圧縮機等、電磁クラッチを介することなく外部駆動源に直結した種々のクラッチレス圧縮機に広く利用可能である。 The present invention can be widely used not only for a clutchless swash plate type compressor but also for various clutchless compressors directly connected to an external drive source without using an electromagnetic clutch, such as a clutchless swing plate type compressor.

本発明の実施例に係る車輛空調装置用のクラッチレス斜板式圧縮機の断面図である。It is sectional drawing of the clutchless swash plate type compressor for vehicle air conditioners which concerns on the Example of this invention.

符号の説明Explanation of symbols

Ａ クラッチレス斜板式圧縮機
１ 回転軸
２ ロータ
３ 斜板
４ ピストン
５ 圧縮機構
６ ハウジング
７ クランク室
８、１３ 軸受
９ 軸封装置
１０ 空間
１１ 連通路
１２ 周壁
１４ プーリー
１５ トルクリミッター A Clutchless swash plate type compressor 1 Rotating shaft 2 Rotor 3 Swash plate 4 Piston 5 Compression mechanism 6 Housing 7 Crank chamber 8, 13 Bearing 9 Shaft seal device 10 Space 11 Communication path 12 Peripheral wall 14 Pulley 15 Torque limiter

Claims (1)

回転軸と、回転軸により駆動される圧縮機構と、回転軸と圧縮機構とを収容するハウジングと、回転軸のハウジング貫通部に配設された軸受と軸封装置とを備え、軸受は軸封装置よりも圧縮機構寄り配設されて回転軸を回転可能に支持し、軸封装置は回転軸のハウジング貫通部をシールし、軸受と軸封装置とに挟まれた空間と軸受よりも圧縮機構寄りの空間との間の連通路がハウジングに形成され、回転軸に於ける、軸受と軸封装置とに挟まれた空間内で延在する部位、に周溝が形成され、当該周溝に嵌合して回転軸の前記部位に周壁が立設されていることを特徴とする圧縮機。 A rotation shaft; a compression mechanism driven by the rotation shaft; a housing that accommodates the rotation shaft and the compression mechanism; a bearing disposed in a housing through portion of the rotation shaft; and a shaft seal device. The rotating shaft is rotatably supported by being arranged closer to the compression mechanism than the device, and the shaft seal device seals the housing through-portion of the rotation shaft, and the compression mechanism rather than the space sandwiched between the bearing and the shaft seal device and the bearing. A communication path between the adjacent space is formed in the housing , and a circumferential groove is formed in a portion of the rotating shaft that extends in the space between the bearing and the shaft seal device. A compressor characterized in that a peripheral wall is erected at the portion of the rotary shaft that is fitted.
JP2006323423A 2006-11-30 2006-11-30 Compressor Expired - Fee Related JP4799380B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006323423A JP4799380B2 (en) 2006-11-30 2006-11-30 Compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006323423A JP4799380B2 (en) 2006-11-30 2006-11-30 Compressor

Publications (2)

Publication Number Publication Date
JP2008138539A JP2008138539A (en) 2008-06-19
JP4799380B2 true JP4799380B2 (en) 2011-10-26

Family

ID=39600285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006323423A Expired - Fee Related JP4799380B2 (en) 2006-11-30 2006-11-30 Compressor

Country Status (1)

Country Link
JP (1) JP4799380B2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006307700A (en) * 2005-04-27 2006-11-09 Toyota Industries Corp Compressor

Also Published As

Publication number Publication date
JP2008138539A (en) 2008-06-19

Similar Documents

Publication Publication Date Title
JP5197141B2 (en) Two-stage screw compressor and refrigeration system
WO2009119316A1 (en) Reciprocating compressor
EP3418569B1 (en) Open-type refrigerant compressor
EP3276173A1 (en) Refrigerant shaft seal and open refrigerant compressor equipped with refrigerant shaft seal
JP4799380B2 (en) Compressor
JP2000136770A (en) Leaked oil draining structure for rotating machine
JP6633305B2 (en) Scroll compressor
JP2008184926A (en) Reciprocating compressor
JP2010112174A (en) Rotary compressor
JP7325975B2 (en) open compressor
JP2007092710A (en) Gas compressor
JP5478273B2 (en) Oil-free screw compressor
JP2009108747A (en) Hermetic electric compressor
JP5799116B2 (en) Oil-free screw compressor
JP2007024000A (en) Swash plate compressor
JP6961439B2 (en) Open compressor
JP4766928B2 (en) Refrigerant gas compressor
JP2007113430A (en) Swash plate compressor
JP6098265B2 (en) Compressor
JP2005155597A (en) Compressor
JP5308686B2 (en) Swash plate compressor
WO2018030066A1 (en) Fluid machine
JP6963452B2 (en) Open compressor
JP2005307969A (en) Compressor
JP2007113429A (en) Open type compressor

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090325

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110217

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110221

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110418

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110510

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110516

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110623

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110802

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140812

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees