AU549902B2 - Position sensing cylinder - Google Patents
Position sensing cylinderInfo
- Publication number
- AU549902B2 AU549902B2 AU87458/82A AU8745882A AU549902B2 AU 549902 B2 AU549902 B2 AU 549902B2 AU 87458/82 A AU87458/82 A AU 87458/82A AU 8745882 A AU8745882 A AU 8745882A AU 549902 B2 AU549902 B2 AU 549902B2
- Authority
- AU
- Australia
- Prior art keywords
- bar
- wiper
- bore
- piston
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 239000012530 fluid Substances 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
- F15B15/2853—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using potentiometers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Vehicle Body Suspensions (AREA)
- Looms (AREA)
- Characterised By The Charging Evacuation (AREA)
- Fluid-Pressure Circuits (AREA)
- Reciprocating Pumps (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Body Structure For Vehicles (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
A piston (16) and rod (18) slide in a double acting cylinder with closed end (12) from which extends a bar (60) having a T-shaped cross-section with a cross piece (64) and stiffening web (66), the edges of which are rounded to engage and slide on the wall of a bore (22) in the piston rod (18), thus supporting the bar in a rigid manner. The face (68) of the cross piece (64) supports a potentiometer track which co-operates with a wiper (118) carried by an insulating carrier (110) fitted into the bore (22). The T-shaped bar (60) partitions the bore (22) into three chambers (65, 67, 69) which are in communication at the distal end of the bar. The carrier (110) is shaped to close the chamber (65) containing the wiper so that there is no fluid flow past the wiper as the piston (16) moves.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US30033181A | 1981-09-08 | 1981-09-08 | |
| US300331 | 1981-09-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU8745882A AU8745882A (en) | 1983-03-17 |
| AU549902B2 true AU549902B2 (en) | 1986-02-20 |
Family
ID=23158660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU87458/82A Ceased AU549902B2 (en) | 1981-09-08 | 1982-08-20 | Position sensing cylinder |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0074266B1 (en) |
| JP (1) | JPS5854208A (en) |
| AT (1) | ATE18286T1 (en) |
| AU (1) | AU549902B2 (en) |
| BR (1) | BR8205185A (en) |
| CA (1) | CA1180916A (en) |
| DE (2) | DE3269407D1 (en) |
| DK (1) | DK400982A (en) |
| ES (1) | ES8402054A1 (en) |
| MX (1) | MX154307A (en) |
| ZA (1) | ZA826527B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE436072B (en) * | 1983-03-22 | 1984-11-05 | Hara Ab | POTENTIOMETER DEVICE FOR DETERMINATION OF PHYSICAL HYDRAULIC PISTONS AND SIMILAR |
| DE3744254A1 (en) * | 1987-12-24 | 1989-07-13 | Integral Hydraulik Co | Linear potentiometer which is operated under oil |
| US6725761B1 (en) | 2002-09-30 | 2004-04-27 | Prince Manufacturing Corporation | Spooling device assembly for hydraulic cylinder and method of assembling same |
| US8100045B2 (en) | 2008-10-21 | 2012-01-24 | Clark Equipment Company | Hydraulic cylinder rod position sensor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3175094A (en) * | 1962-05-24 | 1965-03-23 | Guerin Engineering Inc | Electrohydraulic actuator |
| FR1382342A (en) * | 1963-11-09 | 1964-12-18 | Mitchell Hydraulics Ltd | Improvements to mechanical control devices actuated by pressurized fluid |
| US3412391A (en) * | 1964-10-31 | 1968-11-19 | Gullick Ltd | Pressure-fluid-operated devices and means for indicating the condition thereof |
| US3726191A (en) * | 1971-02-08 | 1973-04-10 | Bunker Ramo | Electrically controlled hydraulic system and transducer therefor |
-
1982
- 1982-07-28 CA CA000408261A patent/CA1180916A/en not_active Expired
- 1982-08-20 AU AU87458/82A patent/AU549902B2/en not_active Ceased
- 1982-08-31 JP JP57151655A patent/JPS5854208A/en active Granted
- 1982-09-03 BR BR8205185A patent/BR8205185A/en unknown
- 1982-09-06 AT AT82304667T patent/ATE18286T1/en active
- 1982-09-06 DE DE8282304667T patent/DE3269407D1/en not_active Expired
- 1982-09-06 EP EP82304667A patent/EP0074266B1/en not_active Expired
- 1982-09-06 DE DE198282304667T patent/DE74266T1/en active Pending
- 1982-09-06 ES ES515508A patent/ES8402054A1/en not_active Expired
- 1982-09-07 MX MX194300A patent/MX154307A/en unknown
- 1982-09-07 ZA ZA826527A patent/ZA826527B/en unknown
- 1982-09-08 DK DK400982A patent/DK400982A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| ES515508A0 (en) | 1984-01-01 |
| JPS5854208A (en) | 1983-03-31 |
| MX154307A (en) | 1987-06-30 |
| ES8402054A1 (en) | 1984-01-01 |
| CA1180916A (en) | 1985-01-15 |
| JPH0233883B2 (en) | 1990-07-31 |
| DE74266T1 (en) | 1983-08-04 |
| ATE18286T1 (en) | 1986-03-15 |
| EP0074266B1 (en) | 1986-02-26 |
| ZA826527B (en) | 1984-04-25 |
| BR8205185A (en) | 1983-08-16 |
| EP0074266A1 (en) | 1983-03-16 |
| DE3269407D1 (en) | 1986-04-03 |
| DK400982A (en) | 1983-03-09 |
| AU8745882A (en) | 1983-03-17 |
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