公开(公告)号：US12055144B2

公开(公告)日：2024-08-06

申请号：US17168703

申请日：2021-02-05

Applicant: FLUID-O-TECH S.R.L.

Inventor： Diego Andreis ,  Pierpaolo Lucchesi ,  Stefano Copelli ,  Carlo Gonella

IPC: F01C1/08 ,  F01C21/00 ,  F04C2/08 ,  F04C15/00 ,  F04C29/00 ,  F04C29/02 ,  F04C13/00

CPC classification number: F04C2/084 ,  F01C1/084 ,  F01C1/08 ,  F04C13/002 ,  F04C2240/30 ,  F04C2240/50 ,  F04C2240/60

Abstract: A pump particularly for pumping a liquid such as ink, paint, glue or the like, includes at least one rotating pumping member having a respective shaft. The at least one rotating pumping member being at least partially housed inside a pump body, the shaft being rotatably supported by at least one support associated with the pump body.
The shaft has on its external cylindrical surface in contact with the liquid one, or more recesses, or the at least one support includes on its internal cylindrical surface in contact with the liquid, one or more recesses.

公开(公告)号：US11905954B2

公开(公告)日：2024-02-20

申请号：US17546556

申请日：2021-12-09

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI ,  NOK CORPORATION

Inventor： Tatsushi Mori ,  Shintaro Kashiwa ,  Daisuke Masaki ,  Kenichi Yoshimura

IPC: F04C18/12 ,  F04C15/00 ,  F04C2/08 ,  F04C27/00 ,  F04C28/24 ,  F04C18/08 ,  F04C29/00 ,  F04C29/02 ,  F04C18/16 ,  F04C25/02 ,  F01C1/12 ,  F01C19/00 ,  F01C1/08

CPC classification number: F04C18/126 ,  F01C1/084 ,  F01C1/126 ,  F01C19/005 ,  F04C2/084 ,  F04C15/0038 ,  F04C18/084 ,  F04C18/086 ,  F04C18/16 ,  F04C25/02 ,  F04C27/00 ,  F04C27/009 ,  F04C28/24 ,  F04C29/005 ,  F04C29/02 ,  F04C2240/30 ,  F04C2240/40 ,  F04C2240/60

Abstract: An electric pump includes a housing that includes a gear chamber, a rotor chamber, and a motor chamber. The electric pump includes a first seal member, a second seal member, and a third seal member. The first seal member seals a space between the gear chamber and the rotor chamber. The second seal member seals the space between the gear chamber and the rotor chamber. The third seal member seals a space between the gear chamber and the motor chamber. The third seal member seals the space between the gear chamber and the motor chamber to a lesser extent than the first seal member and the second seal member seal the space between the gear chamber and the rotor chamber.

公开(公告)号：US09714655B2

公开(公告)日：2017-07-25

申请号：US13516121

申请日：2010-12-17

Applicant: Gunnar Moeller ,  Marcus Ardron ,  Anthony O. Dye

Inventor： Gunnar Moeller ,  Marcus Ardron ,  Anthony O. Dye

IPC: F01C1/16 ,  F03C2/08 ,  F04C18/14 ,  F04C2/02 ,  F01C1/08 ,  F01C1/12 ,  F01C1/20

CPC classification number: F04C2/02 ,  F01C1/084 ,  F01C1/123 ,  F01C1/20 ,  F04C2240/20 ,  F04C2250/301

Abstract: A rotary device includes a first rotor rotatable about a first axis and having at its periphery a recess bounded by a curved surface, and a second rotor counter-rotatable to the first rotor about a second axis, parallel to the first axis, and having a radial lobe bounded by a curved surface, the first and second rotors being coupled for intermeshing rotation, wherein the first and second rotors of each section intermesh in such a manner that on rotation thereof, a transient chamber of variable volume is defined, the transient chamber having a progressively increasing or decreasing volume between the recess and lobe surfaces, the transient chamber being at least in part defined by the surfaces of the lobe and the recess; the ratio of the maximum radius of the lobe rotor and the maximum radius of the recess rotor being greater than 1.

公开(公告)号：US09714572B2

公开(公告)日：2017-07-25

申请号：US14394577

申请日：2013-04-03

Applicant: The City University

Inventor： Nikola Rudi Stosic

IPC: F03C4/00 ,  F04C2/00 ,  F04C18/00 ,  F01C1/16 ,  F04C18/08 ,  F04C2/16 ,  F04C18/16 ,  F01C1/08 ,  F04C29/06

CPC classification number: F01C1/16 ,  F01C1/084 ,  F04C2/16 ,  F04C18/084 ,  F04C18/16 ,  F04C29/06 ,  F04C2250/301 ,  Y10T29/49242

Abstract: A reduced noise screw expander is described, which comprises a main rotor and a gate rotor each having an ‘N’ profile. The rotors are designed so that the torque on the gate rotor caused by pressure forces is in the same direction as the torque on the gate rotor caused by frictional drag forces. A method of designing a screw machine exhibiting reduced noise is also described. The screw machine has two or more rotors having an ‘N’ profile, and the method involves determining a ratio r/r1, where r is the main rotor addendum and r1 is the radius of the rack round side, and ensuring that this ratio is greater than 1.1 where the screw machine is to be a screw compressor or less than or equal to 1.1 where the screw machine is to be a screw expander.

公开(公告)号：US09404366B2

公开(公告)日：2016-08-02

申请号：US14287527

申请日：2014-05-27

Applicant: Settima Meccanica S.r.l. ,  Mario Antonio Morselli

Inventor： Mario Antonio Morselli

IPC: F01C1/08 ,  F04C2/08 ,  F16H55/08 ,  F04C2/14

CPC classification number: F01C1/084 ,  F04C2/084 ,  F04C2/14 ,  F16H55/08 ,  Y10T74/1987

Abstract: A gear wheel comprising a plurality of helical teeth, each helical tooth of the gear wheel having a tooth profile meshing with semi-encapsulation in a geared hydraulic apparatus. Each tooth having a profile which falls within a band of tolerance of +− 1/15 of the depth of a nominal tooth defined by a spline function interpolating a plurality of node points having pre-established coordinates {X,Y} with their origin on the gear wheel center.

Abstract translation: 一种包括多个螺旋齿的齿轮，齿轮的每个螺旋齿在齿轮液压装置中具有与半封装啮合的齿形。 每个齿具有轮廓，该轮廓落在由样条函数限定的标称齿的深度的+ - 1/15的范围内，该样条函数插值具有预先建立的坐标{X，Y}的多个节点，其原点在 齿轮中心。

公开(公告)号：US20140322060A1

公开(公告)日：2014-10-30

申请号：US14361589

申请日：2012-08-09

Applicant: Hiroaki Takeda

Inventor： Hiroaki Takeda

IPC: F04C2/18 ,  F01C1/18

CPC classification number: F01C1/18 ,  F01C1/084 ,  F01C1/16 ,  F03C2/08 ,  F04C2/084 ,  F04C2/16 ,  F04C2/18 ,  F04C14/28 ,  F04C15/0049 ,  F04C18/084 ,  F04C18/16 ,  F04C18/18 ,  F04C2270/13

Abstract: A pair of meshed gears is disposed in a hydraulic chamber of a housing. Bushes in the chamber contact both end surfaces of the gears. Edge surfaces of the gears are chamfered at intermediate parts between tooth tips and tooth bottoms, and the inclination of the intermediate parts is larger than those of the tooth tips and bottom, thereby protecting the edges from damage due to contact force as the gears mesh and preventing leakage between the gears and the support members. Accordingly, the gears may be operated quietly, at high output efficiency, and increased reliability for an extended period.

Abstract translation: 一对啮合齿轮设置在壳体的液压室中。 腔内的灌注物接触齿轮的两个端面。 齿轮的边缘表面在齿尖和齿底之间的中间部分处被倒角，并且中间部分的倾斜度大于齿顶和底部的倾斜度，从而当齿轮啮合时保护边缘免受接触力的损伤 防止齿轮和支撑构件之间的泄漏。 因此，齿轮可以以高输出效率安静地运行，并且可以延长长时间的可靠性。

公开(公告)号：US08714951B2

公开(公告)日：2014-05-06

申请号：US13204184

申请日：2011-08-05

Applicant: George A. Yarr

Inventor： George A. Yarr

IPC: F01C21/10

CPC classification number: F01C1/104 ,  F01C1/084 ,  F01C21/02 ,  F04C2/084 ,  F04C2250/10

Abstract: A rotary chambered fluid energy-transfer device includes a housing with a central portion having a bore formed therein and an end plate forming an arcuate inlet passage, with a radial height and a circumferential extent. The device also includes an outer rotor rotatable in the central portion bore with a female gear profile formed in a radial portion defining a plurality of roots and an inner rotor with a male gear profile defining a plurality of lobes in operative engagement with the outer rotor. A minimum radial distance between an outer rotor root and a corresponding inner rotor lobe define a duct end face proximate the end plate, wherein the duct end face has a radial height substantially equivalent to the inlet passage radial height at a leading edge of the inlet passage.

Abstract translation: 旋转腔流体能量转移装置包括具有其中形成有孔的中心部分的壳体和形成具有径向高度和周向范围的弓形入口通道的端板。 该装置还包括可在中心部分孔中旋转的外转子，其具有形成在限定多个根部的径向部分中的阴齿轮廓线和内转子，该内转子具有限定与外转子可操作接合的多个叶片的凸轮齿轮轮廓。 外转子根和相应的内转子叶片之间的最小径向距离限定靠近端板的管道端面，其中管道端面具有与入口通道前缘处的入口通道径向高度基本相等的径向高度 。

公开(公告)号：US20130142685A1

公开(公告)日：2013-06-06

申请号：US13516121

申请日：2010-12-17

Applicant: Gunnar Moeller ,  Marcus Ardron ,  Anthony O. Dye

Inventor： Gunnar Moeller ,  Marcus Ardron ,  Anthony O. Dye

IPC: F04C2/02

CPC classification number: F04C2/02 ,  F01C1/084 ,  F01C1/123 ,  F01C1/20 ,  F04C2240/20 ,  F04C2250/301

Abstract: A rotary device includes a first rotor rotatable about a first axis and having at its periphery a recess bounded by a curved surface, and a second rotor counter-rotatable to the first rotor about a second axis, parallel to the first axis, and having a radial lobe bounded by a curved surface, the first and second rotors being coupled for intermeshing rotation, wherein the first and second rotors of each section intermesh in such a manner that on rotation thereof, a transient chamber of variable volume is defined, the transient chamber having a progressively increasing or decreasing volume between the recess and lobe surfaces, the transient chamber being at least in part defined by the surfaces of the lobe and the recess; the ratio of the maximum radius of the lobe rotor and the maximum radius of the recess rotor being greater than 1.

Abstract translation: 旋转装置包括可围绕第一轴线旋转并且在其周边处具有由弯曲表面限定的凹部的第一转子和与第一转子相反的第二转子，所述第二转子围绕平行于第一轴线的第二轴线反向旋转，并且具有 由弯曲表面限定的径向凸角，第一和第二转子被联接以进行啮合旋转，其中每个部分的第一和第二转子以这样一种方式相互啮合，即在旋转时限定可变容积的瞬变室，瞬态室 在凹部和凸角表面之间逐渐增加或减少体积，瞬态室至少部分地由凸角和凹部的表面限定; 凸轮转子的最大半径与凹形转子的最大半径之比大于1。

公开(公告)号：US20130052072A1

公开(公告)日：2013-02-28

申请号：US13578348

申请日：2011-02-14

Applicant: Ian Kenneth Smith ,  Nikola Rudi Stosic

Inventor： Ian Kenneth Smith ,  Nikola Rudi Stosic

IPC: F01C1/16

CPC classification number: F16N15/04 ,  F01C1/084 ,  F01C1/16 ,  F01C17/00 ,  F01C21/045 ,  F04C29/04 ,  F04C2210/242 ,  F04C2230/91 ,  F04C2240/52 ,  F04C2240/54 ,  F05C2251/14 ,  F16C17/02 ,  F16C17/14

Abstract: A screw machine for use with a working fluid with a liquid phase present comprises rotors having meshed, lubricated helical formations. The rotors have an ‘N’ profile as disclosed in WO 97/43550. In use, lubrication of the helical formations of the rotors and optionally of the rotor bearings is achieved substantially exclusively with the liquid phase of the working fluid.

Abstract translation: 与具有液相的工作流体一起使用的螺旋机器包括具有啮合的，润滑的螺旋形结构的转子。 转子具有如WO 97/43550中所公开的N轮廓。 在使用中，转子和任选的转子轴承的螺旋形结构的润滑基本上仅通过工作流体的液相来实现。

公开(公告)号：US08074471B2

公开(公告)日：2011-12-13

申请号：US12438438

申请日：2007-10-17

Applicant: Hiroshi Hasegawa ,  Masaru Matsui ,  Takeshi Ogata ,  Fumitoshi Nishiwaki ,  Hidetoshi Taguchi ,  Fuminori Sakima ,  Masanobu Wada

Inventor： Hiroshi Hasegawa ,  Masaru Matsui ,  Takeshi Ogata ,  Fumitoshi Nishiwaki ,  Hidetoshi Taguchi ,  Fuminori Sakima ,  Masanobu Wada

IPC: F25B1/00 ,  F01C1/30 ,  F01C1/02 ,  F01C1/063 ,  F03C2/00

CPC classification number: F25B9/008 ,  F01C1/084 ,  F01C1/322 ,  F01C1/3564 ,  F01C11/004 ,  F01C11/008 ,  F04C11/008 ,  F25B1/04 ,  F25B1/10 ,  F25B9/06 ,  F25B13/00 ,  F25B40/00 ,  F25B2309/061

Abstract: A refrigeration cycle apparatus 1 includes a refrigerant circuit in which a refrigerant circulates. The refrigerant circuit is formed by connecting in sequence a compressor 2 for compressing the refrigerant, a radiator 3 for allowing the refrigerant compressed by compressor 2 to radiate heat, a fluid pressure motor 4 as a power recovery means, and an evaporator 5 for allowing the refrigerant discharged by the fluid pressure motor 4 to evaporate. The fluid pressure motor 4 performs a process for drawing the refrigerant and a process for discharging the refrigerant. These processes are performed substantially continuously.

Abstract translation: 制冷循环装置1包括制冷剂循环的制冷剂回路。 制冷剂回路通过依次连接用于压缩制冷剂的压缩机2，用于使由压缩机2压缩的制冷剂放热的散热器3，作为动力回收装置的流体压力马达4和用于允许 由流体压力马达4排出的制冷剂蒸发。 流体压力马达4进行制冷剂的拉拔处理和制冷剂的排出处理。 这些处理基本上连续进行。