公开(公告)号：US20180245595A1

公开(公告)日：2018-08-30

申请号：US15758253

申请日：2016-09-14

申请人： TRANE INTERNATIONAL INC.

发明人： Eric S. Mlsna

IPC分类号： F04C29/12 ,  F04C18/02 ,  F04C28/16 ,  F25B1/04

CPC分类号： F04C29/12 ,  F04C18/0215 ,  F04C23/008 ,  F04C28/16 ,  F04C2230/85 ,  F04C2240/10 ,  F25B1/04 ,  F25B2400/13 ,  F25B2600/0262

摘要： An intermediate discharge port in a scroll compressor and a method for controlling part-load efficiency of a scroll compressor are disclosed. The compressor includes a compressor housing; a non-orbiting scroll member and an orbiting scroll member forming a compression chamber; a discharge port for receiving a compressed fluid; and an intermediate discharge port fluidly connected between the compression chamber and the discharge port, the intermediate discharge port including a sealing member, fluid flow being prevented between the compression chamber and the discharge port through the intermediate discharge port when in a flow-blocked state, and fluid flow being enabled between the compression chamber and the discharge port through the intermediate discharge port when in a flow-permitted state.

公开(公告)号：US20180023571A1

公开(公告)日：2018-01-25

申请号：US15550370

申请日：2015-02-12

申请人： MAYEKAWA MFG. CO., LTD.

发明人： Yasuaki ENDO

IPC分类号： F04C29/02 ,  F04C28/28

CPC分类号： F04C29/021 ,  F04C18/16 ,  F04C18/20 ,  F04C28/28 ,  F04C29/02 ,  F04C29/026 ,  F04C2210/22 ,  F04C2230/85 ,  F04C2240/30 ,  F04C2240/52 ,  F04C2240/60 ,  F04C2270/19

摘要： An oil-flooded screw compressor system includes: a first lubricating oil supply system for supplying lubricating oil to screw parts; and a second lubricating oil supply system for supplying the lubricating oil to a bearing. The first lubricating oil supply system includes: a gas-liquid separator; a first supply flow passage; and a first supply path. The second lubricating oil supply system includes: a lubricating oil reservoir; a second supply flow passage; a second supply path; a first discharge flow passage; and a discharge path. It is possible to suppress dissolution of a gas to be compressed in lubricating oil and to suppress damage to a bearing due to deterioration of the performance of the lubricating oil, even in a case where the gas to be compressed is compatible with the lubricating oil.

公开(公告)号：US20170114785A1

公开(公告)日：2017-04-27

申请号：US15114483

申请日：2015-01-22

申请人： KLAUS UNION GMBH & CO. KG

发明人： Thomas Eschner

IPC分类号： F04C2/16 ,  F04C18/16 ,  F04C29/02 ,  F04C15/00

CPC分类号： F04C2/16 ,  F01C21/007 ,  F01C21/02 ,  F01C21/10 ,  F04C15/0088 ,  F04C18/16 ,  F04C29/02 ,  F04C2230/603 ,  F04C2230/604 ,  F04C2230/70 ,  F04C2230/80 ,  F04C2230/85 ,  F04C2240/20 ,  F04C2240/30 ,  F04C2240/50 ,  F04C2240/52 ,  F04C2240/802

摘要： The invention relates to a screw spindle pump, with a housing (2) which surrounds a delivery chamber (5), two spindles (7, 8), namely a drive spindle (7) and an opposed running spindle (8), a housing insert (6) which is arranged in the housing (2) and in which the spindles (7, 8) are accommodated, at least one bearing element (13′, 13″), which is connected to the housing insert (6) and on which bearings (12) of the spindles (7, 8) are arranged, and with at least one housing cover (14′, 14″), closing a housing opening. It is the object of the invention to provide a screw spindle pump at which maintenance and inspection work can be carried out more simply and cost-effectively. The invention achieves this object in that the bearing element (13′, 13″) together with the housing insert (6) and the spindles (7, 8) accommodated therein forms a unit (15) which, after the housing cover (14′, 14″) is taken off, is removable from the housing (2) through the housing opening.

公开(公告)号：US09303641B2

公开(公告)日：2016-04-05

申请号：US14206016

申请日：2014-03-12

申请人： Lee Hilpert ,  Rolando Nico M. Ramos ,  William W. Blodgett

发明人： Lee Hilpert ,  Rolando Nico M. Ramos ,  William W. Blodgett

IPC分类号： F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C2/12 ,  F04C2/08

CPC分类号： F04C2/123 ,  F01C21/08 ,  F04C2/084 ,  F04C2/126 ,  F04C2230/60 ,  F04C2230/601 ,  F04C2230/70 ,  F04C2230/80 ,  F04C2230/85 ,  F04C2240/20 ,  F04C2270/17 ,  Y10T29/49249

摘要： A piston for a pump a hub portion defining opposing outer portions, and inserts configured to provide an adjustable surface coupled to each of the opposing outer portions. The hub portion includes a first hub portion and a second hub portion configured to abut one another. Each of the inserts includes an outer shell and a base portion. The first hub portion includes a plurality of the opposing outer portions, and each of the base portions of the inserts is adjustably coupled to respective opposing outer portions of the first hub portion. A pump includes a housing having an inlet and an outlet, and at least two pistons having a hub portion and inserts. The pump may be a positive-displacement, rotary pump, and the pistons may be circumferential pistons.

摘要翻译： 用于泵的活塞限定相对的外部部分的毂部分，以及被配置成提供联接到每个相对的外部部分的可调整表面的插入件。 轮毂部分包括第一轮毂部分和第二轮毂​​部分，该第二轮毂部分被构造为彼此邻接。 每个插入件包括外壳和基部。 第一毂部分包括多个相对的外部部分，并且插入件的每个基部可调节地联接到第一毂部分的相应的相对的外部部分。 泵包括具有入口和出口的壳体，以及具有毂部和插入件的至少两个活塞。 泵可以是正排量的旋转泵，并且活塞可以是圆周活塞。

公开(公告)号：US11725663B2

公开(公告)日：2023-08-15

申请号：US17429708

申请日：2020-02-03

申请人： Gebr. Becker GmbH

发明人： Frank Diedrichsen ,  Marcel Kuethe-Schleifenbaum ,  Dirk Wallat-Thaler ,  Henryk Waniek

IPC分类号： F04C29/00 ,  F04C18/12 ,  F04C29/12

CPC分类号： F04C29/0092 ,  F04C18/123 ,  F04C29/12 ,  F04C2230/85 ,  F04C2240/30

摘要： A rotary piston pump, in particular a claw pump, includes a housing which, when placed in a customary manner, has a housing inlet in a housing upper side. In order to further improve a rotary piston pump in a beneficial way, the housing inlet is connected to a gas channel that is integrated in the housing and extends transversely to a rotational axis of the piston, which gas channel creates a flow connection to a gas outlet of a filter part arranged in a filter receptacle. In the installed state, the filter part is accessible from a side perpendicular to the housing upper side, for maintenance purposes, for example.

公开(公告)号：US09878347B2

公开(公告)日：2018-01-30

申请号：US14226098

申请日：2014-03-26

申请人： Riem Service s.r.l.

发明人： Fabio Russo

IPC分类号： C08K3/04 ,  B05D1/02 ,  F04C2/16 ,  B05D3/02 ,  B05D3/12

CPC分类号： B05D1/02 ,  B05D3/0272 ,  B05D3/12 ,  B05D2506/15 ,  F04C2/16 ,  F04C2230/80 ,  F04C2230/85 ,  F04C2230/91

摘要： A refurbishment process for a volumetric screw compressor of the ‘oil-free’ type, which comprises a male rotor and a female rotor, is described. The process comprises visually checking the wear condition of the rotors, treating their surface for removing the previous coating, and applying a new coating on the surface. The composition of the coating applied on the surface of the rotors consists of the following materials: MaterialAmount (g) Polytetrafluoroethylene750 ÷ 850 (954G 303 C Teflon, DuPont) Amorphous graphite powder300 ÷ 400 Thinner for spray cleaning apparatuses200 ÷ 270 (8595 thinner, DuPont) Methyl ethyl ketone (MEK)170 ÷ 220 Cellosolve acetate coating additive200 ÷ 300 (Syn Fac 800 resin).

公开(公告)号：US20170130714A1

公开(公告)日：2017-05-11

申请号：US14933027

申请日：2015-11-05

申请人： FORD GLOBAL TECHNOLOGIES, LLC

发明人： EDWIN J. WATERBURY

IPC分类号： F04C2/10 ,  F04C15/06

CPC分类号： F04C2/102 ,  F01C21/108 ,  F04C2/084 ,  F04C2/086 ,  F04C2230/80 ,  F04C2230/85 ,  F04C2240/20 ,  F04C2240/30

摘要： A transmission pump is be removed from service and remanufactured into a remanufactured transmission pump. A first gear assembly is removed from the pump. A bore of the pump is machined from a first depth to a greater second depth. A second gear assembly is installed in the machined bore. The second gear assembly has a same horizontal geometry and a greater axial depth than the first gear assembly.

公开(公告)号：US09341186B2

公开(公告)日：2016-05-17

申请号：US13873793

申请日：2013-04-30

申请人： AGILENT TECHNOLOGIES, INC.

发明人： John Calhoun

IPC分类号： F04C28/28 ,  F04C27/02 ,  F04C18/02 ,  F04C27/00

CPC分类号： F04C28/28 ,  F04C18/0207 ,  F04C18/0215 ,  F04C18/0284 ,  F04C27/005 ,  F04C29/0057 ,  F04C2220/50 ,  F04C2230/80 ,  F04C2230/85 ,  F04C2240/81 ,  F04C2270/80 ,  F04C2270/86

摘要： A scroll pump has a tip seal between an axial end of the scroll blade of one of stationary and orbiting plate scrolls of the pump and the plate of the other of the stationary plate and orbiting plate scrolls. The scroll pump may have a ballast gas supply system and use the operation of the ballast gas supply system to assess the condition of the tip seal. Alternatively, the scroll pump may have two pressure sensors that sense pressure at two locations spaced along a compression mechanism of the pump to assess the condition of the tip seal.

摘要翻译： 涡旋泵在泵的静止和涡旋板涡旋件之一的涡旋叶片的轴向端部与另一个固定板和旋转板卷轴的板之间具有尖端密封。 涡旋泵可以具有压载气体供应系统，并且使用压载气体供应系统的操作来评估末端密封的状况。 或者，涡旋泵可以具有两个压力传感器，其感测沿着泵的压缩机构间隔开的两个位置处的压力，以评估尖端密封的状况。

公开(公告)号：US20160010633A1

公开(公告)日：2016-01-14

申请号：US14770735

申请日：2014-04-03

申请人： MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.

发明人： Takayuki HAGITA ,  Masaki KAWASAKI

IPC分类号： F04B39/14 ,  F04B39/12

CPC分类号： F04B39/14 ,  B23B31/02 ,  B23B31/16 ,  F01C21/10 ,  F04B39/121 ,  F04C2230/00 ,  F04C2230/604 ,  F04C2230/85 ,  F04C2240/30 ,  Y10T29/49323

摘要： This housing is a cylindrical housing including a bearing-member mounting portion provided at least one position on the inner circumferential surface, on which bearing-member mounting portion a bearing member is mounted; mounting legs provided at least two vertical positions on the outer circumferential surface; and chucking portions to be chucked by a chuck mechanism of a machining apparatus during machining, provided on the outer circumferential surface, at least three positions in the circumferential direction, corresponding to the position where the bearing-member mounting portion is provided.

摘要翻译： 该壳体是圆柱形壳体，其包括：轴承构件安装部，其设置在内周面上的至少一个位置，轴承构件安装部分安装有轴承构件; 安装腿在外周面上设置至少两个垂直位置; 以及设置在外周面的机械加工装置的卡盘机构夹持部，在与轴承构件安装部的位置对应的周向上的至少3个位置上夹持。

公开(公告)号：US20130223999A1

公开(公告)日：2013-08-29

申请号：US13408717

申请日：2012-02-29

申请人： Timothy J. PAULSON

发明人： Timothy J. PAULSON

IPC分类号： F04D29/40 ,  B23P15/00

CPC分类号： F04C2/18 ,  F04C11/001 ,  F04C15/0026 ,  F04C2210/206 ,  F04C2230/85 ,  Y10T29/49245

摘要： An oil pump for a machine is disclosed. The oil pump may have a housing. The oil pump may further have a spacer fixedly connected to the housing. The spacer may divide the housing into a main chamber and an auxiliary chamber. The spacer may also have an opening. The oil pump may further have a drive shaft rotatably disposed within the housing generally orthogonal to the spacer. The drive shaft may pass through the opening. In addition, the oil pump may have a collar fixedly connected to the drive shaft. The collar may be positioned within the opening generally orthogonal to the spacer. The collar may have a diameter of about 2.5 to 3.0 inches and the opening may have a diameter such that an annular gap area between the collar and the spacer is about 0.25 to 0.29 square inches.

摘要翻译： 公开了一种用于机器的油泵。 油泵可以具有壳体。 油泵还可以具有固定地连接到壳体的间隔件。 间隔件可以将壳体分成主室和辅助室。 间隔件也可以具有开口。 油泵还可以具有可旋转地设置在壳体内的大致正交于间隔件的驱动轴。 驱动轴可以穿过开口。 此外，油泵可以具有固定地连接到驱动轴的轴环。 套环可以定位在通常与间隔件正交的开口内。 套环可以具有约2.5至3.0英寸的直径，并且开口可以具有使得套环和间隔件之间的环形间隙区域为约0.25至0.29平方英寸的直径。