EP1983196A1 - Spiralverdichter mit Stoppstruktur zur Verhinderung von Bewegungen der Wellenbuchse - Google Patents

Spiralverdichter mit Stoppstruktur zur Verhinderung von Bewegungen der Wellenbuchse Download PDF

Info

Publication number: EP1983196A1
Authority: EP; European Patent Office
Prior art keywords: eccentric pin; slider block; base; stop; scroll
Prior art date: 2007-04-18
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

Application number

EP07251632A

Other languages

English (en)

French (fr)

Other versions

EP1983196B1 (de

Inventor

Zili Sun

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.)

Danfoss Scroll Technologies LLC

Original Assignee

Scroll Technologies LLC

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.)

2007-04-18

Filing date

2007-04-18

Publication date

2008-10-22

2007-04-18 Application filed by Scroll Technologies LLC filed Critical Scroll Technologies LLC

2007-04-18 Priority to EP20070251632 priority Critical patent/EP1983196B1/de

2008-10-22 Publication of EP1983196A1 publication Critical patent/EP1983196A1/de

2011-07-20 Application granted granted Critical

2011-07-20 Publication of EP1983196B1 publication Critical patent/EP1983196B1/de

Status Not-in-force legal-status Critical Current

2027-04-18 Anticipated expiration legal-status Critical

Images

Classifications

- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C29/0057—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions for eccentric movement
- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving

Definitions

This application relates to a scroll compressor having a slider block which is driven by an eccentric pin from a drive shaft, and wherein there is a stop structure on the eccentric pin to prevent the slider block from moving upwardly beyond the eccentric pin and contacting a rear surface of the orbiting scroll.
a first scroll member has a base and a generally spiral wrap extending from its base.
the second scroll member has a base and a generally spiral wrap extending from its base.
the generally spiral wraps interfit to define compression chambers.
One of the two scroll members is caused to orbit relative to the other, and as it orbits the size of the compression chambers decreases and an entrapped fluid is compressed.
the drive mechanism for causing the scroll member to orbit includes a drive shaft driven to rotate, and having an eccentric pin extending upwardly into a slider block.
the slider block is received within a rearwardly extending boss in the orbiting scroll.
the eccentric pin drives the orbiting scroll through the slider block.
a stop structure is provided on the eccentric pin.
This stop structure prevents the slider block from moving upwardly and contacting the orbiting scroll.
this stop structure is a slightly enlarged upper portion of the eccentric pin which fits into a notch in the slider block. While the two may be out of contact in most cases, should the slider block begin to migrate vertically upwardly, it will contact the stop, and the stop will prevent further movement.
the outside dimension of the eccentric pin at the stop is less than an inside dimension of a bore through the entirety of the slider block. This will facilitate assembly of the slider block onto the slider pin.
a scroll compressor 20 is illustrated in Figure 1A , and is as known in the art.
a non-orbiting scroll 22 has a spiral wrap 23 extending from a base.
An orbiting scroll 24 has a spiral wrap 25 extending from its base 27.
the orbiting scroll 24 further has a boss 26 extending away from its base 27 in an opposed direction to the wrap 25.
Refrigerant is compressed in the compression chambers defined between the wraps 23 and 25 and delivered to a discharge port 28. Refrigerant enters the compressor housing through a section port 30.
the motor 32 drives a shaft 34 to rotate.
the shaft 34 includes an eccentric pin 36 which is received within a slider block 38.
the slider block sits within the boss 26, and between the boss and the eccentric pin 36.
An anti-rotation coupling 37 ensures that the orbiting scroll will not rotate, but instead orbits.
the slider block 38 typically has an opening for receiving the eccentric pin 36 that is much larger than the pin 36.
a flat surface 54 on the eccentric pin 36 engages a flat surface 52 in the bore in the slider block 38.
Figure 1C is a view generally perpendicular to the Figure 1B view. As shown, the "flat" surface 54 is not truly flat, but actually has a slight barrel shape. With this prior art, there is sometimes a problem in that the slider block 38 has migrated vertically upwardly, and contacted the rear surface 60 of the base 27. This is undesirable.
the driveshaft 34 is provided with an eccentric pin 136 that is received within a slider block 138.
the slider block 138 is provided with a notch 142 at a vertically uppermost surface.
the eccentric pin 36 is provided with a stop 140 at its vertically uppermost surface.
the outer dimension of the eccentric pin at the stop 140 is shown at B. This dimension is less than the dimension of the bore within the slider block 138 shown at A. In this manner, the slider block can be simply dropped onto the eccentric pin.
the stop will move over and be above the notch 142.
the notch 142 extends for a greater length than does stop 140. This is to remove any alignment problems as the flat surfaces come into engagement.
the present invention provides a simple and effective method of preventing a slider block from contacting the rear of a base of an orbiting scroll. While a preferred embodiment of this invention has been disclosed, a worker of ordinary skill in the art would recognize that certain modifications would come within the scope of this invention. For that reason, the following claims should be studies to determine the true scope and content of this invention.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Rotary Pumps (AREA)

EP20070251632 2007-04-18 2007-04-18 Spiralverdichter mit Stoppstruktur zur Verhinderung von Bewegungen der Wellenbuchse Not-in-force EP1983196B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
EP20070251632 EP1983196B1 (de)	2007-04-18	2007-04-18	Spiralverdichter mit Stoppstruktur zur Verhinderung von Bewegungen der Wellenbuchse

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP20070251632 EP1983196B1 (de)	2007-04-18	2007-04-18	Spiralverdichter mit Stoppstruktur zur Verhinderung von Bewegungen der Wellenbuchse

Publications (2)

Publication Number	Publication Date
EP1983196A1 true EP1983196A1 (de)	2008-10-22
EP1983196B1 EP1983196B1 (de)	2011-07-20

Family

ID=38514091

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20070251632 Not-in-force EP1983196B1 (de)	2007-04-18	2007-04-18	Spiralverdichter mit Stoppstruktur zur Verhinderung von Bewegungen der Wellenbuchse

Country Status (1)

Country	Link
EP (1)	EP1983196B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2452598A (en) *	2007-09-05	2009-03-11	Scroll Tech	Inclined flat drive surface in orbiting scroll slider block.
WO2013142696A1 (en)	2012-03-23	2013-09-26	Bitzer Kühlmaschinenbau Gmbh	Scroll compressor with slider block

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5439360A (en) *	1991-07-22	1995-08-08	Carrier Corporation	Self-adjusting crankshaft drive
JPH09329091A (ja) *	1996-06-13	1997-12-22	Daikin Ind Ltd	スクロール型流体装置
US6053714A (en) *	1997-12-12	2000-04-25	Scroll Technologies, Inc.	Scroll compressor with slider block
EP1544469A1 (de) *	2003-12-16	2005-06-22	LG Electronics Inc.	Exzenterkupplungsvorrichtung eines Spiralverdichters mit radialer Nachgiebigkeit

2007
- 2007-04-18 EP EP20070251632 patent/EP1983196B1/de not_active Not-in-force

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5439360A (en) *	1991-07-22	1995-08-08	Carrier Corporation	Self-adjusting crankshaft drive
JPH09329091A (ja) *	1996-06-13	1997-12-22	Daikin Ind Ltd	スクロール型流体装置
US6053714A (en) *	1997-12-12	2000-04-25	Scroll Technologies, Inc.	Scroll compressor with slider block
EP1544469A1 (de) *	2003-12-16	2005-06-22	LG Electronics Inc.	Exzenterkupplungsvorrichtung eines Spiralverdichters mit radialer Nachgiebigkeit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2452598A (en) *	2007-09-05	2009-03-11	Scroll Tech	Inclined flat drive surface in orbiting scroll slider block.
GB2452598B (en) *	2007-09-05	2012-01-18	Scroll Tech	Scroll compressor with tapered slider block
WO2013142696A1 (en)	2012-03-23	2013-09-26	Bitzer Kühlmaschinenbau Gmbh	Scroll compressor with slider block
EP2864635A4 (de) *	2012-03-23	2016-04-13	Bitzer Kuehlmaschinenbau Gmbh	Spiralverdichter mit schiebeblock
US9920762B2 (en)	2012-03-23	2018-03-20	Bitzer Kuehlmaschinenbau Gmbh	Scroll compressor with tilting slider block

Also Published As

Publication number	Publication date
EP1983196B1 (de)	2011-07-20

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2008-09-19	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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2009-03-25	17P	Request for examination filed	Effective date: 20090205
2009-04-08	17Q	First examination report despatched	Effective date: 20090304
2009-07-01	AKX	Designation fees paid	Designated state(s): BE DE ES FR GB IT
2011-04-05	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2011-05-11	RIN1	Information on inventor provided before grant (corrected)	Inventor name: SUN, ZILI
2011-06-14	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2011-06-17	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
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