• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Method for manufacturing a spiral type device, characterized in that it comprises the following steps: - providing an end plate (1) with a spiral (2) thereon; - producing a tip seal (4) and / or a dust seal by means of additive manufacturing; - providing the produced tip seal (4) and / or dust seal in a mounting groove (3) in the tip (2 ') of the coil (2) and / or in the end plate, respectively. Seal for use in a spiral type device, characterized in that the seal (4) is made by means of additive manufacturing techniques.
    公开号:BE1023333B1
    申请号:E2016/5236
    申请日:2016-04-05
    公开日:2017-02-07
    发明作者:Joris Dominick C Gallant；Koen STOOP；Wim Jan L Mathys；Jozef Maria Segers；Peter Jan J Buyl；Mieghem Luc Van
    申请人:Atlas Copco Airpower, N.V.；
    IPC主号:
    专利说明:

    Spiral type device and method for the production of such device and seal for such device.
    The invention relates to a device of the spiral type and more particularly to a device of the spiral type provided with an axial seal.
    Spiral-type devices are well known, for example, as described in U.S. Pat. No. 801 182, which describes a spiral-type device with two spiral elements, each having an end plate and a spiral or spiral-curled spiral element. In the operation of such a spiral-type device, one of the co-operating spiral elements (rotor) is moved relative to the other spiral element, which is so solid (stator) that at least one pair of fluid chambers is sealed between the respective spiral elements. During the movement of the spiral elements relative to each other, the fluid chambers will become larger or smaller, depending on the direction of rotation of the rotational movement, the spiral elements acting respectively as a spiral expander or as a spiral compressor.
    A known problem with spiral-type devices is the axial seal of the spiral elements with respect to each other, and more particularly the axial seal of the fluid chambers. One of the biggest losses in a spiral-type device is the leakage of gas from one fluid chamber to another, over the spiral tips.
    To minimize those losses, it is known that the spiral tips are provided with grooves and so-called tip seals are mounted in those grooves. An example of a spiral-type device provided with a tip seal is described in Belgian patent no. 1,010,916 in the name of Atlas Copco Airpower N.V., the description of which is incorporated in its entirety in this application.
    In addition, a dust seal is usually provided to close the gap between the fluid chambers and the atmosphere, the dust seal being placed in a mounting groove between the outer compression chamber and the atmosphere. An example of a dust seal is described in U.S. Pat. Patent Application No. 2014/0234149 Al.
    Known methods for the production of the tip seals and dust seals do not allow great freedom in the choice of material or shape.
    The present invention has for its object to provide improvements for spiral-type devices, to provide an improved method for the production of a spiral-type device and to provide an improved seal for a spiral-type device.
    To this end, the invention relates to a method according to claim 1 for the production of a spiral-type device.
    The invention further relates to an improved seal according to claim 7 for use in a spiral-type device.
    In addition, the invention relates to a spiral-type device according to claim 18 and / or 19.
    An important advantage of the invention is that it offers great freedom of choice for the material, combination of materials and / or properties or the shape of the tip seal and / or the dust seal.
    In addition, the invention allows the use of a much wider range of materials than the known methods for the production of spiral-type devices.
    The invention also has the consequence that higher tolerances can be achieved, which in turn can even help to lower production costs.
    The invention also makes it possible to arrive at different forms of tip seals and / or dust seals, which cannot be realized with the aid of known production methods.
    With the insight to better demonstrate the characteristics of the invention, a few preferred embodiments of a spiral compressor according to the invention and of a method for the production of a spiral compressor and seal for a spiral compressor are described below, with reference to the accompanying drawings, in which:
    Figure 1 schematically represents a possible step of a method according to the invention, wherein a tip seal according to the invention is provided in a post groove provided on a spiral tip;
    Figure 2 represents a section according to line ΙΙ-Π in Figure 1; and
    Figures 3 to 8 and 9 show a cross-section of possible embodiments of a tip seal or a dust seal according to the invention;
    Figure 10 shows a longitudinal section according to line XX in Figure 9.
    Figures 1 and 2 show a part of a spiral element with an end plate 1 on which a spiral 2 is provided, said spiral 2 being provided on its tip 2 'with a mounting groove 3 for mounting a tip seal 4.
    According to a particular aspect of the invention, the tip seal is made by means of additive production techniques. Additive production is a process in which materials are assembled to create objects, preferably starting from 3D model data, usually, but not limited to, layer upon layer, as opposed to subtractive production techniques as described in ASTM F2792-12a. Additive production refers to a category of production methods, for example "powder bed fusion" or "powder bed fusion" which is an additive production method in which thermal energy selectively fuses specific sites of a powder bed. "Direct energy deposition" is an additive production process in which targeted thermal energy is used to fuse materials when depositing. Multiple technologies are eligible for the invention.
    It is clear that all types of materials can be used, for example, but not limited to polymers. According to one option, a combination of materials can be used to produce the tip seal and / or a dust seal of the spiral type device.
    More specifically, a method according to the invention may comprise the step of producing the tip seal 4 and / or dust seal of two or more layers 5 from a different material, for example materials a and b in Figure 3.
    Different layers 5 can also be made in different colors, which makes it possible to visualize the wear of the tip seal 4 and / or dust seal. In one particular embodiment, a softer material is deposited on top of a harder material and the seal 4 is provided in the mounting groove 3 so that the softer layer is directed toward, and in use in contact with, the opposing co-operating spiral element. In cross section, one layer 5 may have a triangular shape 6 and may be mounted such that the base 7 of the triangle 6 forms the lower or upper layer 5 of the tip seal 4 and / or dust seal.
    According to a special aspect of the invention, the change of material can also extend in the longitudinal direction of the coil. In other words, for example, a soft and / or more flexible material can be provided on the outer spirals (i.e. on the inlet side in the case of a spiral compressor), while on the inner spirals (which are on the outlet side in the case of a compressor) ) use is made of a more wear-resistant and / or teraper-resistant material. In addition, according to a special aspect of the invention, a combination of materials can be implemented equally in both the height direction and the length direction.
    According to certain variants of a tip seal 4 and / or dust seal according to the invention, this seal can have a variable height over its length and / or width.
    Additionally or alternatively, the tip seal 4 and / or dust seal may have a variable width along its length or height.
    Regarding the possibilities of variable height of the seal, one possibility includes the introduction of a cartridge, e.g. as illustrated in Figures 4 and 5, wherein the upper surface 7 of the tip seal 4 and / or dust seal has chambers 9 that give the appearance of tilting, and recesses in the form of saw teeth 10, respectively. Such shapes allow the tip seal 4 and / or dust seal to increase in sealing power during operation.
    Alternatively and / or additionally, a tip seal 4 and / or dust seal according to the invention could have a variable profile, as shown as a non-limiting example in Figure 6, wherein such variable profile is preferably manufactured by means of additive production techniques.
    In addition, the shape of the seal can be adjusted to varying load parameters; as well as on different models of the spiral type.
    Alternatively and / or additionally, the tip seal and / or dust seal can be applied directly into the groove of the spiral type via additive production techniques.
    By optionally providing open structures, an elasticity is generated in the tip seal 4 and / or dust seal, so that a good seal can be realized continuously.
    A first example of such an elastic open structure is shown in the cross-section of Figure 8, in which it is shown that the tip seal 4 and / or fabric seal is constructed in layers 13 with a middle layer provided with open meshes or channels 14. The thickness and the width of this middle layer 13 'and of the dimensions of the meshes 14 can vary in the longitudinal direction of the seal 4.
    A second example of an elastic open structure is shown in figures 9 and 10 in which the tip seal 4 and / or dust seal is provided in its core with a continuous channel 15 which extends in the longitudinal direction of the tip seal 4 and / or dust seal. In the example shown, the shape of the cross-section and the inner diameter of the channel are constant along the length of the tip seal 4 and / or dust seal, although these features may also vary over the length.
    Thanks to the additive production method for producing the tip seal 4 and / or dust seal, the most capricious and complex shapes are conceivable.
    The tip seal 4 and / or dust seal can also be provided with protrusions 11 or recesses 12 as illustrated, for example in Figure 1, since this allows the tip seal 4 and / or dust seal to remain in place in the mounting groove.
    A tip seal 4 and / or dust seal according to the invention can be used in combination with any embodiment of a spiral-type device as illustrated in Belgian Patent No. 1,010,916 which is incorporated herein by reference.
    It is clear that the invention relates to both spiral compressors and spiral expanders that can be used for compression and / or expansion of any gas or mixture of gases.
    The invention is in no way limited to the embodiments described above or shown in the drawings. On the contrary, a seal for a spiral-type device and a spiral-type device according to the invention can be made in all shapes and sizes without departing from the scope of the invention.
    In addition, the method according to the invention for the production of a spiral-type device can be realized in various ways without departing from the scope of the invention.
    权利要求:
    Claims (16)
    [1]
    Conclusions.
    Method for the production of a device of the spiral type, characterized in that said method comprises the following steps: - providing an end plate (1) with a spiral (2) thereon; - producing a tip seal (4) and / or a dust seal by means of additive production; - providing the produced tip seal (4) and / or dust seal in a mounting groove (3) in the tip (2 ') of the coil (2) and / or in the end plate, respectively.
    [2]
    Method according to claim 1, characterized in that the step of producing the tip seal (4) and / or the dust seal comprises the addition of two or more different materials (a, b).
    [3]
    Method according to claim 2, characterized in that the step of producing the tip seal (4) and / or the dust seal comprises the following steps: - providing a first layer (5) with a first material (a) ; and then "providing a second layer 5 of a second material (b).
    [4]
    Method according to claim 3, characterized in that the first material (a) has a greater hardness than the second material (b).
    [5]
    Method according to claim 4, characterized in that the step of providing the tip seal (4} and / or the dust seal in the mounting groove (3) comprises placing the tip seal (4) and / or the dust seal, such that the second, softer material (b) is directed upwards so that it is in contact with the other co-operating coil element in the fully assembled state of the coil type device.
    [6]
    Method according to claim 2, characterized in that the two materials (a, b) have a different color.
    [7]
    7. - Seal for use in a spiral-type device, characterized in that the seal (4) is made by means of additive production techniques.
    [8]
    The seal according to claim 7, characterized in that the seal (4) comprises two or more different materials (a, b). The seal according to claim 8, characterized in that the different materials (a, b) have a different color.
    [10]
    Seal according to claim 7, characterized in that the seal (4) has at least partially a variable height. Seal according to claim 10, characterized in that the seal (4) is provided with a variable height pattern.
    [12]
    The seal according to claim 7, characterized in that the seal (4) has at least partially a variable width.
    [13]
    The seal according to claim 12, characterized in that the seal (4) has at least in part a variable width pattern.
    [14]
    The seal according to claim 7, characterized in that the seal (4) is hollow on the inside.
    [15]
    The seal according to claim 7, characterized in that the seal (4) has a variable profile over its length.
    [16]
    The seal according to claim 7, characterized in that the seal comprises protrusions (11) and / or recesses (12). Seal according to claim 7, characterized in that the seal comprises an elastic structure that is configured such that a good seal can be maintained continuously.
    [18]
    A spiral-type device, characterized in that it comprises a seal (4) according to claim 7.
    [19]
    A device of the spiral type, characterized in that it is made according to the method of claim 1.
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    同族专利:
    公开号 | 公开日
    BE1023333A1|2017-02-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0124114A2|1983-04-29|1984-11-07|Mitsubishi Denki Kabushiki Kaisha|Scroll-type compressor|
    JP2006077577A|2004-09-07|2006-03-23|Matsushita Electric Ind Co Ltd|Scroll compressor|
    EP1757813A1|2005-08-24|2007-02-28|Anest Iwata Corporation|Tip seal in a scroll fluid machine|
    US20110286871A1|2009-05-27|2011-11-24|Mitsubishi Heavy Industries, Ltd.|Scroll compressor|
    US20140248172A1|2013-03-04|2014-09-04|Kabushiki Kaisha Toyota Jidoshokki|Scroll compressor|
    CN103143706A|2013-03-07|2013-06-12|无锡安迪利捷贸易有限公司|3D printing manufacturing method of seal|
    WO2014161520A2|2013-04-03|2014-10-09|MTU Aero Engines AG|Sealing arrangement produced by additive manufacturing|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US201562145061P| true| 2015-04-09|2015-04-09|
    US62/145,061|2015-04-09|PCT/BE2016/000015| WO2016161488A2|2015-04-09|2016-04-07|Scroll type apparatus and method for manufacturing such a scroll type apparatus and seal for such a scroll type apparatus|
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