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公开(公告)号：US20220403841A1
公开(公告)日：2022-12-22
申请号：US17774151
申请日：2019-12-24
IPC分类号： F04C2/344
摘要： A rotary pump includes: a pump rotor having a flat rotor side surface facing in an axial direction; a housing body having an opening in the axial direction and a flat flange surface formed around the opening, the housing body rotatably housing the pump rotor in the opening such that the rotor side surface is flush with the flange surface; and a cover member having a flat mating surface that is fixed while being pressed against the flange surface by fastening of a bolt, and a flat sliding/guiding surface that slides and guides the rotor side surface. The cover member is formed of a crosslinked fluororesin and a metal body. The metal body is provided with the mating surface, and a recess obtained by recessing an area corresponding to the sliding/guiding surface, in the axial direction with respect to the mating surface.
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公开(公告)号：US20220389925A1
公开(公告)日：2022-12-08
申请号：US17775343
申请日：2019-12-24
摘要： Provided is a rotary pump including: a pump rotor having a flat first rotor side surface facing one side in an axial direction, and a flat second rotor side surface facing the other side in the axial direction; and a housing configured to rotatably house the pump rotor. The housing includes: a ring member having a hollow tubular shape and openings at both ends in the axial direction; a first side member detachably mounted to one end in the axial direction of the ring member to slide and guide the first rotor side surface by using a first crosslinked fluororesin flat surface formed of a crosslinked fluororesin; and a second side member detachably mounted to the other end in the axial direction of the ring member to slide and guide the second rotor side surface by using a second crosslinked fluororesin flat surface formed of the crosslinked fluororesin.
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公开(公告)号：US20220388028A1
公开(公告)日：2022-12-08
申请号：US17774143
申请日：2019-12-24
摘要： A crosslinked fluororesin-coated rotor manufacturing method is a method for manufacturing an annular outer rotor of an internal gear pump including the outer rotor, and an inner rotor, a side surfaces of the outer rotor being coated with a crosslinked fluororesin, an inner peripheral surface of the outer rotor not being coated with the crosslinked fluororesin, the method including: using an outer masking jig for covering the inner peripheral surface in a state where the side surfaces of the outer rotor are exposed; coating the outer rotor with an uncrosslinked fluororesin in a state where the outer masking jig is mounted to the outer rotor; and then irradiating the fluororesin with radiation in a state where the outer masking jig is removed from the outer rotor, to crosslink the fluororesin.
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公开(公告)号：US20220389928A1
公开(公告)日：2022-12-08
申请号：US17774144
申请日：2019-12-24
摘要： A crosslinked fluororesin-coated pump rotor manufacturing method is a method for manufacturing a pump rotor having flat rotor side surfaces and provided with a coating layer of a crosslinked fluororesin on each rotor side surface, the method including: screen-printing a dispersion liquid obtained by dispersing particles of a fluororesin in a solvent, on the rotor side surface by using a screen plate having an opening having a shape in which the opening does not protrude from an outer peripheral edge of the rotor side surface; then heating the pump rotor to a temperature equal to or higher than a melting point of the fluororesin to bake the fluororesin on the rotor side surface; and then irradiating the fluororesin with radiation to crosslink the fluororesin.
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公开(公告)号：US20150307800A1
公开(公告)日：2015-10-29
申请号：US14443454
申请日：2013-10-24
IPC分类号： C10M107/38
CPC分类号： C10M107/38 , F16C33/128 , F16C33/201 , F16C2202/10 , F16C2202/20 , F16C2208/32 , F16C2220/20 , F16C2240/60
摘要： There is provided a sliding member that has sufficient wear resistance and good adhesion to a base formed of a sintered body. The sliding member includes a surface layer formed of a crosslinked fluoropolymer and a base that adheres closely to the surface layer. The base is a sintered body having a full density ratio in the range of 0.75 to 0.96 and is formed of a material having higher thermal conductivity than a fluoropolymer. The surface layer has a thickness in the range of 1 to 300 μm.
摘要翻译： 提供了具有足够的耐磨性和对由烧结体形成的基底的良好粘合性的滑动构件。 滑动构件包括由交联的氟聚合物形成的表面层和紧密附着在表面层上的基底。 该基体是具有在0.75至0.96范围内的全密度比的烧结体，并且由具有比含氟聚合物更高的热导率的材料形成。 表面层的厚度为1〜300μm。
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