US20170114782A1 - Constructive Arrangement Introduced in a Reciprocating Compressor Including a Lubricant Oil Pump - Google Patents

Constructive Arrangement Introduced in a Reciprocating Compressor Including a Lubricant Oil Pump Download PDF

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Publication number
US20170114782A1
US20170114782A1 US15/297,277 US201615297277A US2017114782A1 US 20170114782 A1 US20170114782 A1 US 20170114782A1 US 201615297277 A US201615297277 A US 201615297277A US 2017114782 A1 US2017114782 A1 US 2017114782A1
Authority
US
United States
Prior art keywords
rotating shaft
region
lubricating oil
reciprocating compressor
rotor
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
US15/297,277
Other languages
English (en)
Inventor
Adilson Luiz Manke
Rodrigo Antonio Santiago
Mauricio Pereira TADA
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.)
Whirlpool SA
Original Assignee
Whirlpool SA
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 Whirlpool SA filed Critical Whirlpool SA
Publication of US20170114782A1 publication Critical patent/US20170114782A1/en
Assigned to WHIRLPOOL S. A. reassignment WHIRLPOOL S. A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MANKE, ADILSON LUIZ, SANTIAGO, RODRIGO ANTONIO, TADA, MAURICIO PEREIRA
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
    • 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
    • F04B39/02—Lubrication
    • F04B39/0284—Constructional details, e.g. reservoirs in the casing
    • 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
    • F04B39/0094—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 crankshaft
    • 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
    • F04B39/02—Lubrication
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/0276—Lubrication characterised by the compressor type the pump being of the reciprocating piston type, e.g. oscillating, free-piston compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • 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
    • F04B39/02—Lubrication
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/023—Hermetic compressors
    • F04B39/0238—Hermetic compressors with oil distribution channels
    • F04B39/0246—Hermetic compressors with oil distribution channels in the rotating shaft
    • 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
    • F04B39/02—Lubrication
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/023—Hermetic compressors
    • F04B39/0261—Hermetic compressors with an auxiliary oil pump
    • 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
    • F04B39/122—Cylinder block
    • 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
    • F04B39/123—Fluid connections
    • 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
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/06—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
    • F16N29/02—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems for influencing the supply of lubricant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/36—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by pumping action of the member to be lubricated or of a shaft of the machine; Centrifugal lubrication

Definitions

  • the current utility model refers to a new constructive arrangement introduced in a reciprocating compressor including helical pump of lubricating oil, which is defined by interaction between the compressor rotating shaft (also known as the crankshaft) and the retaining pin, being the last stationary.
  • said helical pump of lubricating oil is about the arrangement responsible for conducting or pumping lubricating oil stored on the bottom of the reciprocating compressor housing for the moving elements that are part of the compression functional unity of the reciprocating compressor.
  • reciprocating compressor normally hermetic
  • lubricating oil to reduce friction and wear between the moving components and, specially, the moving components that integrates the compression functional unity of the reciprocating compressor, as, for example, the rod, the piston, the shaft, among others.
  • the lubricating oil is stored on the internal lower portion of the hermetic housing, being this region called crankcase.
  • the lubricating oil stored on the bottom of the reciprocating compressor housing is conducted to the moving elements that integrate the compression functional unity of the reciprocating compressor.
  • conducting lubricating oil is made by a lubricating oil pump, which is defined by the interaction with the compressor rotating shaft.
  • the current state of the art comprises concepts of centrifugal pump and helical rotating pump of lubricating oil.
  • centrifugal pumps are defined by the interaction of stamped tips or pipes and holes integrated to the compressor rotating shaft, being that its functioning requires, normally the operation in frequencies above 50 Hz.
  • the high rotation of the compressor shaft generated a centrifugal effect capable of conduct vertically the lubricating oil stored on the bottom of the reciprocating compressor housing for the moving elements that integrate the compression functional unity of the reciprocating compressor.
  • the general details of this type of concept are broadly known by technicians on the art.
  • the helical pumps are defined by interaction with the compressor rotating shaft, being the functioning requiring, mandatory, the existence of a stationary pin housed on the lower end of said compressor rotating shaft.
  • said stationary pin enables the dragging of lubricating oil by the viscous tension principle generated on the helical channel existing between it and the internal surface of the rotating shaft, which makes possible the conduction of the stored lubricating on the bottom of the housing for the moving elements that integrates the compression functional unity of the reciprocating compressor even with the compressor operating in lower frequencies, around 20 Hz.
  • the general details of this type of concept also are broadly known by technicians on the art.
  • said compressor comprises at least one electrical engine formed by at least one rotor and at least one stator, at least one rotating shaft functionally coupled to the electrical engine rotor, at least one compressor block capable of housing, at least partially, the rotating shaft and at least one retaining pin cooperating with the rotating shaft.
  • the rotating shaft comprises at least one lower region and at least one intermediate region.
  • Said lower region comprises the extension of the rotating shaft defined between its own lower end and all its own extension that is disposed out and below the lower side of the coupling region of the electrical engine rotor, being that the cooperating region between the retaining pin and the rotating shaft limits to the lower region.
  • the intermediate region comprises the extension of the rotating shaft hollow region disposed from and above the lower side of the coupling region of the rotor shaft, in region non-cooperating with the retaining pin.
  • the lower region of the rotating shaft further comprises, on its external side, a contouring recess.
  • FIG. 1 illustrates, schematically, the reciprocating compressor including the interaction between the rotating shaft, the block, the stationary pin, the fixing clamp and the electrical engine, according to the constructive arrangement in question;
  • FIG. 2 illustrates, schematically, just the rotating shaft of compressor, according to the constructive arrangement in question.
  • the reciprocating compressor 1 comprises, inside its hermetic housing (not illustrated), one electrical engine formed by a rotor 12 and a stator 13 .
  • the rotating shaft 2 is functionally attached to the rotor 12 of the electrical engine by means of a coupling structure 14 , and partially disposed inside the compressor block 3 .
  • the rotating shaft 2 comprises a fundamentally cylindrical body that can be better analyzed segmented. This is, said rotating shaft 2 can be better studied if imaginatively divided in a lower region 21 and an intermediate region 22 .
  • This subdivisions have the reference to the interference region of said rotor 12 of electrical engine (including the coupling structure 14 ) and the hollow region of said rotating shaft 2 that extends above the interference region with the coupling structure 14 (including).
  • said lower region 21 is about the extension of rotating shaft 2 defined between its own lower end and all its own extension that is disposed out and below the lower side 121 of the coupling structure 14 of rotor 12 of electrical engine.
  • the intermediate region 22 is about the extension of the hollow region 21 of the rotating shaft 2 that extends above the lower side 121 of the coupling structure 14 of the rotor 12 , in which there is no cooperation or functional interaction with the retaining pin 4 .
  • the lower region 21 is cylindrically hollow and cooperates with a retaining pin 4 , which is inserted inside the hollow cylinder existing on the lower region 21 of the rotating shaft 2 .
  • the cooperation between the lower region 21 and the retaining pin 4 defines, as it should be in helical pumps, a lower channel of lubricating oil conduction.
  • the lower channel for conducting the lubricating oil is formed between the flat external wall of the retaining pin 4 and a helical groove 211 existing on the internal side of the lower region 21 of the rotating shaft 2 .
  • the lower channel for conducting lubricant oil could be formed between an eventual flat internal wall of the lower region 21 of the rotating shaft 2 and an eventual helical groove existing on the external side of the retaining pin 4 .
  • the lower channel for conducting the lubricating oil could be formed, interchangeably, between flat segments and grooved of the internal wall of the lower region 21 of the rotating shaft 2 and grooved and flat segments of the external side of the retaining pin 4 , or vice versa.
  • the great merit of the utility model in question consists on the fact that limits the overlay region of the retaining pin 4 to the lower region 21 of the rotating shaft 2 (this is, all the extension of said rotating shaft 2 that is disposed out and below the lower side 121 of the coupling structure 14 of the rotor 12 of the electrical engine, this region free of deformations, allowing the assembling slots to be significantly reduced, increasing the efficiency of pumping of this helical pump.
  • the lower region 21 of the rotating shaft 2 still comprises, on its external side, a contouring recess 212 .
  • the fact that the lower region 21 of the rotating shaft 2 comprises, on its external side, a contouring recess 212 for all its longitudinal extension makes possible the optimization of rotating shaft assembling 2 on the rotor 12 of the electrical engine, thus, this diametric reduction of the lower region 21 of the rotating shaft 2 avoids the occurrence of eventual plastic and/or elastic deformations of this part of the shaft, not damaging during assembling, at least one dimensional point of view, the lower region cooperation 21 of the rotating shaft 2 with the retaining pin 4 and, consequently, not imparting the efficiency or reciprocating the final diametric slot of the overlay region with the lower channel for conducting lubricating oil.
  • the intermediate region 22 comprises a hollow space 221 from and above the lower side 121 of the coupling structure 14 of the shaft to the rotor.
  • Such hollow space 221 is destined to temporary storage and transference of the lubricating oil to the bearing region of the rotating shaft, which is preliminarily pumped by the lower channel of conduction of lubricating oil existing on the lower region 21 of the rotating shaft 2 .
  • the transference of the lubricating oil of the intermediate region 22 of the rotating shaft 2 for the bearing region of the shaft on the compressor block 3 is made by one or more passing radials holes 213 and/or 214 .
  • the lower channel for conducting the lubricating oil do not suffer any type of deformation during the rotating shaft assembling 2 of the rotor 12 of the electrical engine 12 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compressor (AREA)
US15/297,277 2015-10-21 2016-10-19 Constructive Arrangement Introduced in a Reciprocating Compressor Including a Lubricant Oil Pump Abandoned US20170114782A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR2020150266915 2015-10-21
BR202015026691U BR202015026691Y8 (pt) 2015-10-21 2015-10-21 disposição construtiva introduzida em compressor alternativo incluindo bomba de óleo lubrificante

Publications (1)

Publication Number Publication Date
US20170114782A1 true US20170114782A1 (en) 2017-04-27

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US15/297,277 Abandoned US20170114782A1 (en) 2015-10-21 2016-10-19 Constructive Arrangement Introduced in a Reciprocating Compressor Including a Lubricant Oil Pump

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US (1) US20170114782A1 (pt)
CN (1) CN206257020U (pt)
BR (1) BR202015026691Y8 (pt)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170204753A1 (en) * 2016-01-19 2017-07-20 Whirlpool S.A. Variable Speed Cooling Compressor Including Lubricating Oil Pumping System
CN111271254A (zh) * 2018-12-05 2020-06-12 安徽美芝制冷设备有限公司 用于压缩机的供油结构和具有其的压缩机
EP3995696A1 (en) 2020-11-06 2022-05-11 LG Electronics Inc. Hermetic compressor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102377778B1 (ko) * 2017-07-19 2022-03-23 삼성전자주식회사 밀폐형 압축기

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060013706A1 (en) * 2003-03-14 2006-01-19 Yoshinori Ishida Compressor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060013706A1 (en) * 2003-03-14 2006-01-19 Yoshinori Ishida Compressor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170204753A1 (en) * 2016-01-19 2017-07-20 Whirlpool S.A. Variable Speed Cooling Compressor Including Lubricating Oil Pumping System
US10844759B2 (en) * 2016-01-19 2020-11-24 Embraco—Industria De Compressores E Solucoes Em Refrigeracao Ltda. Variable speed cooling compressor including lubricating oil pumping system
CN111271254A (zh) * 2018-12-05 2020-06-12 安徽美芝制冷设备有限公司 用于压缩机的供油结构和具有其的压缩机
EP3995696A1 (en) 2020-11-06 2022-05-11 LG Electronics Inc. Hermetic compressor
US20220145872A1 (en) * 2020-11-06 2022-05-12 Lg Electronics Inc. Hermetic compressor

Also Published As

Publication number Publication date
BR202015026691U2 (pt) 2017-05-02
CN206257020U (zh) 2017-06-16
BR202015026691Y8 (pt) 2021-03-30
BR202015026691Y1 (pt) 2020-12-29

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Legal Events

Date Code Title Description
AS Assignment

Owner name: WHIRLPOOL S. A., BRAZIL

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MANKE, ADILSON LUIZ;SANTIAGO, RODRIGO ANTONIO;TADA, MAURICIO PEREIRA;REEL/FRAME:045643/0161

Effective date: 20180412

STCB Information on status: application discontinuation

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