IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0807395
(2001-04-12)
|
우선권정보 |
DE-0047298 (1998-10-14) |
국제출원번호 |
PCT/EP99/07582
(1999-10-09)
|
국제공개번호 |
WO00/21729
(2000-04-20)
|
발명자
/ 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
0 |
초록
▼
The invention relates to an injection molding machine having a plurality of modular drive groups which are arranged on the injection molding side and on the mold closure side. According to the invention, at least one of the drive groups is connected to the injection molding machine via at least one
The invention relates to an injection molding machine having a plurality of modular drive groups which are arranged on the injection molding side and on the mold closure side. According to the invention, at least one of the drive groups is connected to the injection molding machine via at least one multifunction element which, as an interface, makes it possible to optionally connect different types of drives, e.g., electromechanical drives, hydraulic drives, pneumatic drives, linear motors or electromagnetic drives as a drive group in an otherwise unmodified injection molding machine. Independent of the respective drive, space for the respectively used drive groups is provided on the injection molding machine in order to accommodate each type of drive. As a result, the structural requirements for an increased modularity are accomplished by using components which, to a great extent, are identical.
대표청구항
▼
The invention relates to an injection molding machine having a plurality of modular drive groups which are arranged on the injection molding side and on the mold closure side. According to the invention, at least one of the drive groups is connected to the injection molding machine via at least one
The invention relates to an injection molding machine having a plurality of modular drive groups which are arranged on the injection molding side and on the mold closure side. According to the invention, at least one of the drive groups is connected to the injection molding machine via at least one multifunction element which, as an interface, makes it possible to optionally connect different types of drives, e.g., electromechanical drives, hydraulic drives, pneumatic drives, linear motors or electromagnetic drives as a drive group in an otherwise unmodified injection molding machine. Independent of the respective drive, space for the respectively used drive groups is provided on the injection molding machine in order to accommodate each type of drive. As a result, the structural requirements for an increased modularity are accomplished by using components which, to a great extent, are identical. said base plate, said orbiting scroll member being driven relative to said non-orbiting scroll member through an operational cycle; said scroll wrap of said orbiting scroll member and said scroll wrap of said non-orbiting scroll member interfitting to define a plurality of pressure chambers; a back pressure chamber defined on a side of said base plate of one of said orbiting and non-orbiting scroll members remote from the other of said scroll member; and a system for tapping fluid to said back pressure chamber, said system including at least one vent hole selectively exposed to at least one of said pressure chambers during a portion of said operational cycle of said scroll member, and said vent hole being closed for the majority of said operational cycle, said vent hole being closed by the wrap of one of said orbiting and non-orbiting scroll members during the majority of said operational cycle. 2. A scroll compressor as cited in claim 1, wherein said back pressure chamber is defined behind said orbiting scroll member. 3. A scroll compressor comprising: a non-orbiting scroll member having a base plate and a scroll wrap extending from said base plate; a first source for communicating a discharge pressure to a back pressure chamber, and a second source for communicating pressure other than discharge pressure to said back pressure chamber; an orbiting scroll having a base and a scroll wrap extending from said base, said orbiting scroll being driven for movement relative to said non-orbiting scroll through an operational cycle; and said back pressure chamber on a side of said base plate of one of said orbiting and non-orbiting scroll members; at least one vent hole for tapping pressurized fluid from said first and second sources to said back pressure chamber, said vent hole being closed by the wrap of one of said orbiting and non-orbiting scroll members during the majority of said operational cycle. 4. A scroll compressor as recited in claim 3, wherein said back pressure chamber is defined behind said orbiting scroll. 5. A method of operating a scroll compressor comprising the steps of: (1) providing a non-orbiting scroll member having a base plate and a scroll wrap extending from said base plate, and an orbiting scroll member having a base plate and a scroll wrap extending from said base plate, defining a back pressure chamber on a side of said base plate of one of said orbiting and non-orbiting scroll members remote from the other scroll member; (2) causing said orbiting scroll member to move through an operational cycle relative to said non-orbiting scroll member; and (3) tapping fluid from pressure chambers defined between said scroll wraps of said non-orbiting and orbiting scroll members to said back pressure chamber, said tapping being intermittent, such that said tapping does not occur through the majority of said cycle of said orbiting scroll member, said tapping occurring intermittently since a vent hole is closed by said scroll wrap of one of said non-orbiting and said orbiting scroll members during the majority of said cycle. to form a stator ring which is clamped at the respective opposed outer ends by the front outer and rear outer rings therebetween onto the inner ring. The front outer and rear outer rings are axially restrained to the engine casing by a retaining ring which is fitted in an inner annular groove of the engine casing. Each vane segment has a lug member at its outer diameter which radially and slidably engages in a slot of the engine casing to provide angular positioning of the vane segments within the engine casing and to transmit circumferential vane load into the engine casing. This support structure arrangement transmits circumferential loading to the engine casing and isolates radial loading from the engine casing caused by thermal growth changes of the vane segments.
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