Rotary positive displacement pumps
Номер патента: EP3807436A1
Опубликовано: 21-04-2021
Автор(ы): Boris Zhmud, Christian KOLAR, Clemens Verpoort, Johan BLOMKVIST
Принадлежит: APPLIED NANO SURFACES SWEDEN AB
Опубликовано: 21-04-2021
Автор(ы): Boris Zhmud, Christian KOLAR, Clemens Verpoort, Johan BLOMKVIST
Принадлежит: APPLIED NANO SURFACES SWEDEN AB
Реферат: A rotary positive displacement pump (1) comprises a pump enclosure (10) and at least one rotating member (20). The pump enclosure (10) has an inlet (12) and an outlet (14). The rotating member (20) is arranged for, when being rotated, causing a transfer of a liquid from the inlet (12) to the outlet (14). The rotary positive displacement pump (1) has internal sliding surfaces (16, 24, 26, 32, 34) that during operation are exposed to the liquid and are exposed to a sliding contact relative to other internal sliding surfaces (16, 24, 26, 32, 34) of the rotary positive displacement pump (1). At least a part of the internal sliding surfaces (16, 24, 26, 32, 34) has a surface region composed by a nitrided or nitrocarburized steel intercalated with a solid lubricant. A method for manufacturing a rotary positive displacement pump is also disclosed.
Rotary positive displacement pumps
Номер патента: EP3807436A4. Автор: Clemens Verpoort,Boris Zhmud,Johan BLOMKVIST,Christian KOLAR. Владелец: APPLIED NANO SURFACES SWEDEN AB. Дата публикации: 2021-10-27.