21 |
闸转子和螺杆式压缩机 |
CN200880122898.2 |
2008-12-25 |
CN101918716A |
2010-12-15 |
M·A·侯赛因; 增田正典; 冈田忠司 |
本发明提供一种闸转子和螺杆式压缩机,在压缩机的运转中,即使由于壳体和螺杆转子的温度差造成闸转子的弯曲,也能够通过简单的结构,防止闸转子侵入螺杆转子,降低闸转子的磨损量,防止压缩机的能力降低的螺杆式压缩机。闸转子(3)包括闸转子主体(30)、和安装该闸转子主体(30)的转轴部(40)。转轴部(40)的轴部(41)和闸转子主体(30)的孔部(32)之间(S)配置弹性体(5)。 |
22 |
涡旋压缩机 |
CN200780018684.6 |
2007-12-27 |
CN101449061A |
2009-06-03 |
佐藤创; 馆石太一; 木全央幸; 宫本善彰; 高须洋悟 |
本发明的目的在于提供一种可进行三维压缩的涡旋压缩机,其考虑到热膨胀和压力变形,使运行时的叶顶间隙最优化,能够降低压缩泄漏,提高压缩效率,实现高性能化。该涡旋压缩机的涡卷状卷体(13b)的前端面(13c、13d)和底面具有阶梯部(13e),涡卷状卷体(13b)的外周侧的卷体高度比内周侧卷体高度高,能够沿涡卷状卷体(13b)的周向和卷体高度方向进行可压缩的三维压缩,其中,比阶梯部(13e)更靠近内周侧的涡卷状卷体(13b)的高度朝向涡卷状卷体(13b)的中心侧阶段性地或者连续地逐渐降低,在比阶梯部(13)更靠近内周侧,涡卷状卷体的叶顶间隙(Δi)朝向涡卷状卷体(13b)的中心侧逐渐增大。 |
23 |
Scroll compressor having back pressure chamber that operatively contains a discharge pressure and an intermediate pressure during different periods of time within a single compression cycle |
US13346835 |
2012-01-10 |
US09523361B2 |
2016-12-20 |
Inho Won; Yanghee Cho; Kitae Jang |
A scroll compressor is provided. The scroll compressor may include a case; a fixed scroll installed in the case; a wrap portion configured to form a compression chamber by being engaged with the fixed scroll; a base portion coupled to the wrap portion so as to be movable with the fixed scroll but not rotate in a circumferential direction; a drive motor coupled to a rear surface of the base portion, and configured to eccentrically rotate the base portion and the wrap portion; and a main frame installed in the case, and configured to support the base portion. A back pressure chamber that communicates with the compression chamber may be formed between the wrap portion and the base portion where a pressure of the back pressure chamber corresponds to a discharge pressure or an intermediate pressure between the suction pressure and the discharge pressure. |
24 |
ROTOR PUMP AND ROTARY MACHINERY COMPRISING SAME |
US14394028 |
2013-04-09 |
US20150071805A1 |
2015-03-12 |
Qingfeng Sun |
The present invention relates to a rotor pump (10), comprising: a pump body (50A) capable of being rotatably driven and forming an accommodation cavity (52) therein; a pump wheel (20, 20A) having a main body part (22) capable of rotating in the accommodation cavity and a first shaft part (24) axially extending from the main body part; and a sealing plate (30) comprising an eccentric hole (32) being eccentric relative to the rotation axis of the pump body; the first shaft part is rotatably fitted in the eccentric hole; a suction channel (25) is formed on one side of the pump wheel, and a discharge channel is formed on the other side of the pump wheel; the suction channel and the discharge channel are respectively in fluid communication with a compression cavity formed between the outer circumference of the pump wheel and the inner circumference of the accommodation cavity. The present invention also relates to a rotary machinery comprising the rotor pump. The rotor pump of the present invention has a simple structure, fewer components and low cost. |
25 |
Scroll compressor with housing shell location |
US12015651 |
2008-01-17 |
US07878775B2 |
2011-02-01 |
Ronald J. Duppert; Wayne P. Beagle; James W. Bush |
A scroll compressor includes a feature for location of a housing shell section off of one of the scroll compressor bodies. According to this aspect, a scroll compressor comprises a housing including a shell section; scroll compressor bodies having respective bases and respective scroll ribs that project from the respective bases and which mutually engage about an axis for compressing fluid; and a drive unit operative to facilitate relative movement between the scroll compressor bodies. The shell section is located axially relative to a remainder of the housing off of one of the scroll compressor bodies. |
26 |
SCREW COMPRESSOR |
US12810951 |
2008-12-26 |
US20100284848A1 |
2010-11-11 |
Hideki Fujiwara; Hideyuki Gotou; Harunori Miyamura; Nozomi Gotou |
A screw compressor includes a screw rotor having a plurality of helical grooves, a casing containing the screw rotor and a gate rotor. The casing includes a discharge port on an inner peripheral surface of the casing. The gate rotor has gates meshing with the helical grooves of the screw rotor to compress gas in compression chambers to discharge the gas from the discharge port after being compressed. The compression chambers are defined by the helical grooves, the casing, and the gates. The discharge port is divided into a first port and a second port when two adjacent helical grooves of the plurality of helical grooves is open to the discharge port as a result of rotation of the screw rotor, with one of the two adjacent helical grooves being open in the first port and the other of the two adjacent helical grooves being open in the second port. |
27 |
SCROLL COMPRESSOR |
US12442579 |
2008-02-04 |
US20100021329A1 |
2010-01-28 |
Takayuki Kuwahara; Tetsuzou Ukai; Katsuhiro Fujita; Kazuhide Watanabe; Tomohisa Moro |
A scroll compressor that suffers no decrease in compression performance due to leakage resulting from a twisting assembly error is provided. This scroll compressor includes a fixed scroll and an orbiting scroll, each including a spiral wrap protruding from an end plate and having the same tooth thickness (Tr) and the same base-circle radius (b) defining an involute surface. The fixed scroll and the orbiting scroll are offset from each other by an orbiting radius (ρ) and mesh such that the respective wraps face each other with a phase shift of 180°. The orbiting scroll revolves/orbits along a circular orbit with the orbiting radius (ρ) to compress a gas while a rotation-preventing mechanism prevents rotation of the orbiting scroll. The relationship between the involute surfaces of the spiral wraps of the two scrolls and the dimensions, dimensional tolerance, and assembly standards of the rotation-preventing mechanism are determined so that the median value of an allowable angle of rotation (φ) agrees with an upright position of the orbiting scroll. |
28 |
Gate rotor and screw compressor |
JP2008319642 |
2008-12-16 |
JP2009174520A |
2009-08-06 |
HOSSAIN MOHAMMAD ANWAR; MASUDA MASANORI; OKADA TADASHI |
<P>PROBLEM TO BE SOLVED: To provide a screw compressor that can prevent a gate rotor from biting into a screw rotor with a simple configuration, reduce wear amount of the gate rotor, and prevent capacity lowering of compressor, even if a gate rotor deflects due to temperature difference between casing and screw rotor during the operation of compressor. <P>SOLUTION: A gate rotor 3 includes a gate rotor body 30, and a shaft section 40 for attaching the gate rotor body 30. An elastic body 5 is arranged in a space S between a shaft 41 of the shaft section 40 and a hole 32 of the gate rotor body 30. <P>COPYRIGHT: (C)2009,JPO&INPIT |
29 |
Scroll compressor |
JP2006356170 |
2006-12-28 |
JP2008163895A |
2008-07-17 |
SATO SO; TATEISHI TAICHI; KIMATA HISAYUKI; MIYAMOTO YOSHIAKI; TAKASU HIROSATO |
PROBLEM TO BE SOLVED: To provide a scroll compressor capable of three dimensional compression achieved in high performance by optimizing a tip clearance during operation while taking thermal expansion and pressure deformation into account and improved in compression efficiency by reducing a compression leak.
SOLUTION: In the scroll compressor capable of three dimensional compression including steps 13e on a bottom surface and tip surfaces 13c, 13d of a scroll lap 13b, keeping a lap height at the outer circumference side of the scroll lap 13b higher than a lap height at the inner circumference side, and compressing in the lap height direction and the circumference direction of the scroll lap 13b, the height of the scroll lap 13b at the inner circumference side of the step 13e is gradually reduced toward the center side of the scroll lap 13b continuously or stepwise, and the tip clearance Δi of the scroll lap at the inner circumference side of the step 13 is gradually increased toward the center side of the scroll lap 13b.
COPYRIGHT: (C)2008,JPO&INPIT |
30 |
Fluid compression carrier |
JP6908682 |
1982-04-23 |
JPS58185993A |
1983-10-29 |
NAKANISHI HIROSHI; HASHIOKA NORIYASU |
PURPOSE:To improve the compression efficiency by fixing a vane on the entire sliding face of a swing blade and preventing leakage of high pressure compressed fluid. CONSTITUTION:A vane groove is made in the slide face 17 of a swing blade 20. A vane 22 is fixed in the vane groove and a spring 23 is arranged in the bottom of the vane 22 to increase the contact pressure of the vane sliding face. The pressure on the high pressure face A of the swing blade 20 will function onto one side of the vane 22, thereby the contact face 24 has such shape as to be pressed by said pressure. Consequently the fluid will never leak from the sliding face 17 of the swing blade to the low pressure section during the compression stroke, resulting in the improvement of compression efficiency. |
31 |
スクロール圧縮機 |
JP2009283195 |
2009-12-14 |
JP5635767B2 |
2014-12-03 |
フレデリック コリー クライヴ |
|
32 |
Scroll compressor |
JP2006356170 |
2006-12-28 |
JP5030581B2 |
2012-09-19 |
創 佐藤; 善彰 宮本; 央幸 木全; 太一 舘石; 洋悟 高須 |
|
33 |
Single screw compressor |
JP2008331327 |
2008-12-25 |
JP4518206B2 |
2010-08-04 |
モハモド アンワー ホセイン; 正典 増田 |
|
34 |
Scroll compressor |
JP2009283195 |
2009-12-14 |
JP2010144721A |
2010-07-01 |
COLLIE CLIVE FREDERICK |
<P>PROBLEM TO BE SOLVED: To facilitate setting of a clearance in the axial direction and/or positioning in the angular direction between a track scroll and a fixed scroll of a scroll compressor. <P>SOLUTION: This scroll compressor (40) includes: a housing (12); the track scroll (26); and the fixed scroll (41). A driving shaft (14) includes an eccentric shaft part (18), and gives track motion relative to the fixed scroll (41) to the track scroll with rotation of the eccentric shaft 18. In order to set a clearance between the track scroll (26) and the fixed scroll (41), an axial directional spacer (42) is arranged between the fixed scroll (41) and the housing (12). In the case wherein it is desirable to assemble and test the scroll compressor (40), and to perform shim adjustment, the fixed scroll (41) is removed, and a selected axial directional spacer (42) is arranged in a proper position, and the fixed scroll (41) is re-assembled. <P>COPYRIGHT: (C)2010,JPO&INPIT |
35 |
Screw compressor |
JP2008328297 |
2008-12-24 |
JP4400689B2 |
2010-01-20 |
治則 宮村; 望 後藤; 英之 後藤; 秀規 藤原 |
|
36 |
Screw compressor |
JP2007329094 |
2007-12-20 |
JP2009150314A |
2009-07-09 |
HOSSAIN MOHAMMAD ANWAR; MASUDA MASANORI; OTSUKA KANAME |
<P>PROBLEM TO BE SOLVED: To provide a screw compressor for reducing leakage and thrust load on the high pressure side. <P>SOLUTION: The screw compressor 1 comprises screw rotors 2, 52, and a plurality of gate rotors 5a, 5b, 5c, 5d. The screw rotors 2, 52 have helical grooves 11a, 11b in the outer peripheral surfaces, respectively, and are rotatable. The gate rotors 5a, 5b, 5c, 5d have a plurality of teeth 12 radially arranged for engaging with the grooves 11a, 11b of the screw rotors 2, 52. The helical grooves 11a, 11b are a first screw groove 11a for compressing fluid flowing from the one-end sides of the screw rotors 2, 52 toward the other-end sides, and a second screw groove 11b for compressing it flowing from the other-end sides of the screw rotors 2, 52 toward the one-end sides, respectively. <P>COPYRIGHT: (C)2009,JPO&INPIT |
37 |
Rotor pump and rotary machinery comprising the same, the rotor pump including a pump body forming an accommodation cavity, a pump wheel rotating in the accommodation cavity and a sealing plate having an eccentric hole that is eccentric relative to a rotation axis of the pump wheel, where a shaft portion of the pump wheel is rotatably fitted in the eccentric hole |
US14394028 |
2013-04-09 |
US09562530B2 |
2017-02-07 |
Qingfeng Sun |
The present invention relates to a rotor pump (10), comprising: a pump body (50A) capable of being rotatably driven and forming an accommodation cavity (52) therein; a pump wheel (20, 20A) having a main body part (22) capable of rotating in the accommodation cavity and a first shaft part (24) axially extending from the main body part; and a sealing plate (30) comprising an eccentric hole (32) being eccentric relative to the rotation axis of the pump body; the first shaft part is rotatably fitted in the eccentric hole; a suction channel (25) is formed on one side of the pump wheel, and a discharge channel is formed on the other side of the pump wheel; the suction channel and the discharge channel are respectively in fluid communication with a compression cavity formed between the outer circumference of the pump wheel and the inner circumference of the accommodation cavity. The present invention also relates to a rotary machinery comprising the rotor pump. The rotor pump of the present invention has a simple structure, fewer components and low cost. |
38 |
COMPRESSOR HAVING SOUND ISOLATION FEATURE |
US14553502 |
2014-11-25 |
US20150152868A1 |
2015-06-04 |
Wayne-Chi Fu; Michael A. Saunders; Stephen M. Seibel; Kevin J. Gehret; Robert C. Stover; Patrick R. Gillespie |
Scroll compressor designs are provided to minimize vibration, sound, and noise transmission. The scroll compressor has a bearing housing, and orbiting and non-orbiting scroll members. The non-orbiting scroll member has a radially extending flanged portion with at least one aperture substantially aligned with the axially extending bore. At least one fastener is disposed within the aperture and the bore. A sound isolation member contacts at least one of the non-orbiting scroll member, the fastener, or the bearing housing, to reduce or eliminate noise transmission. The sound isolation member may be formed of a polymeric composite having an acoustic impedance value greater than the surrounding materials. The sound isolation member may be an annular washer, an O-ring, or a biasing member, by way of non-limiting example. In other variations, fluid passages are provided within the fastener and/or bearing housing to facilitate entry of lubricant oil to further dampen sound and noise. |
39 |
Lubrication of a scroll compressor |
US13122283 |
2010-01-28 |
US08834139B2 |
2014-09-16 |
Sadayuki Yamada; Nobuaki Ogawa; Yoshifumi Abe; Atsushi Sakuda; Takashi Morimoto |
The present invention provides a scroll compressor in which the reliabilities of the eccentric ball bearing and the main ball bearing are enhanced by controlling an amount of oil supplied from the high pressure region to the back pressure chamber and an amount of oil from the high pressure region to the eccentric ball bearing and the main ball bearing. The scroll compressor includes a back pressure chamber oil-supply path 25 through which lubricating oil 7 is supplied from the high pressure region 21 to the back pressure chamber 22, and a compression chamber oil-supply path 26 through which lubricating oil 7 is supplied from the back pressure chamber 22 to the compression chamber, and the one opening 25c of the back pressure chamber oil-supply path 25 reciprocates, and comes into and comes out from the sealing member 24. |
40 |
SCROLL COMPRESSOR HAVING ADJUSTABLE SPACERS |
US14061702 |
2013-10-23 |
US20140044582A1 |
2014-02-13 |
Clive Frederick Collie |
A scroll compressor 40 comprises: housing 12, orbiting scroll 26 and fixed scroll 41. The drive shaft 14 has an eccentric shaft portion 18 so that rotation of the eccentric shaft portion imparts an orbiting motion to the orbiting scroll relative to the fixed scroll. Axial spacers 42 are located between the fixed scroll and the housing for spacing the fixed scroll relative to the orbiting scroll. When the scroll compressor 40 is assembled and tested and it is desired to perform shimming, the fixed scroll can be removed and a selected spacer placed in position prior to re-assembling the fixed scroll. |