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公开(公告)号：US3338136A
公开(公告)日：1967-08-29
申请号：US39742164
申请日：1964-09-18
Applicant: PNEUMO DYNAMICS CORP
Inventor： JEROME ELWOOD L , BURNS GENE C
IPC: F15B9/07
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公开(公告)号：US3183795A
公开(公告)日：1965-05-18
申请号：US24680162
申请日：1962-12-24
Applicant: WESTINGHOUSE AIR BRAKE CO
Inventor： KIRK WALTER B
CPC classification number: F16J1/02 , B60T17/081 , Y10S92/01
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公开(公告)号：US3007723A
公开(公告)日：1961-11-07
申请号：US83471359
申请日：1959-08-19
Applicant: AUTOQUIP CORP
Inventor： CLARKE JESSE E
IPC: F16J15/56
CPC classification number: F16J15/56 , Y10S92/01 , Y10S277/91
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公开(公告)号：US2951558A
公开(公告)日：1960-09-06
申请号：US65659157
申请日：1957-05-02
Applicant: ALLIS CHALMERS MFG CO
Inventor： SCHUSTER FRANK C
IPC: B66F9/22
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公开(公告)号：US2887092A
公开(公告)日：1959-05-19
申请号：US55359555
申请日：1955-12-16
Applicant: CLARK EQUIPMENT CO
Inventor： BRADY JOSEPH L
IPC: B66F9/18
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公开(公告)号：US2727797A
公开(公告)日：1955-12-20
申请号：US23203551
申请日：1951-06-16
Applicant: SNYDER ROBERT E
Inventor： SNYDER ROBERT E
IPC: F16J15/32
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公开(公告)号：US2647807A
公开(公告)日：1953-08-04
申请号：US23458551
申请日：1951-06-30
Applicant: STANDARD OIL CO
Inventor： BRUNSTRUM LAWRENCE C
IPC: F16C19/55
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公开(公告)号：US2451888A
公开(公告)日：1948-10-19
申请号：US57817745
申请日：1945-02-16
Applicant: GLOBE HOIST CO
Inventor： THOMPSON ELMER B
IPC: F16N31/02
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公开(公告)号：US07311036B2
公开(公告)日：2007-12-25
申请号：US10517292
申请日：2003-05-28
Applicant: Makoto Uchino
Inventor： Makoto Uchino
IPC: F16C32/06
CPC classification number: F15B15/1433 , F15B15/1447 , F16C29/025 , F16C32/0603 , F16C32/0618 , Y10S92/01 , Y10S92/02
Abstract: A pneumatic cylinder has a shaft member having a piston and a piston rod combined with each other in an axial direction, a cylinder body supporting the shaft member with the piston rod protruding outwardly therefrom so as to freely reciprocate linearly, and porous air bearings and which are incorporated into the cylinder body and slidably support the piston and the piston rod. Materials whose thermal expansion coefficients are approximately equivalent are used for the shaft member, the cylinder body, and the air bearings. While gaps between the shaft member and the air bearings are held constant, and the functions of air layers formed in the gap, namely, a sliding function and a sealing function can be maintained stably regardless of temperature change.
Abstract translation: 气缸具有轴构件，该轴构件具有在轴向上彼此结合的活塞和活塞杆;缸体，其支撑轴构件，活塞杆向外突出，从而直线地自由往复运动;多孔空气轴承，其中 被并入缸体中并且可滑动地支撑活塞和活塞杆。 热轴膨胀系数近似等于的材料用于轴构件，缸体和空气轴承。 轴构件和空气轴承之间的间隙保持恒定，并且不管温度变化如何，可以稳定地保持形成在间隙中的空气层的功能，即滑动功能和密封功能。
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公开(公告)号：US5493953A
公开(公告)日：1996-02-27
申请号：US339048
申请日：1994-11-14
Applicant: John H. Bolthouse , M. Wayne Meece
Inventor： John H. Bolthouse , M. Wayne Meece
CPC classification number: F04B39/041 , F04B39/0005 , F04B39/042 , F04B39/126 , F05C2201/0478 , F05C2201/90 , F05C2201/906 , F05C2203/086 , F05C2225/04 , F05C2253/12 , Y10S92/01 , Y10T74/18208
Abstract: A cylinder and piston construction for a compressor or vacuum pump has a cylinder defined by co-axial cylinder and guideway sleeves. The guideway sleeve is larger in diameter than the cylinder sleeve and the cylinder sleeve extends axially into the guideway sleeve. A piston has a cylindrical base which is guided via skirt bearings in the guideway and a head which extends from the base into the compression chamber defined by the cylinder sleeve and has a piston ring which forms a sliding seal with the cylinder sleeve. An annular cavity is defined between the piston head and the piston base into which the cylinder sleeve extends so that the top skirt bearing is positioned closer to the top of the piston head and further away from the bottom skirt bearing so as to steadily guide the piston head in the cylinder sleeve, thereby reducing wear and increasing the life of the pump.
Abstract translation: 用于压缩机或真空泵的气缸和活塞结构具有由同轴气缸和导轨套管限定的气缸。 导轨套筒的直径大于气缸套筒，气缸套筒轴向延伸到导轨套筒中。 活塞具有通过导轨中的裙部轴承引导的圆柱形基座和从基座延伸到由气缸套限定的压缩室中的头部，并且具有与气缸套形成滑动密封的活塞环。 在活塞头和活塞底座之间限定了一个环形空腔，气缸套延伸到活塞底座中，使得顶部裙部轴承定位成更靠近活塞头的顶部并且远离底部裙部轴承，以便稳定地引导活塞 头部在气缸套中，从而减少磨损并增加泵的寿命。
