GB1128868A - Electro-hydraulic actuator mechanism - Google Patents
Electro-hydraulic actuator mechanismInfo
- Publication number
- GB1128868A GB1128868A GB13463/67A GB1346367A GB1128868A GB 1128868 A GB1128868 A GB 1128868A GB 13463/67 A GB13463/67 A GB 13463/67A GB 1346367 A GB1346367 A GB 1346367A GB 1128868 A GB1128868 A GB 1128868A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- piston
- pump
- housing
- valve
- 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.)
- Expired
Links
- 239000012530 fluid Substances 0.000 abstract 3
- 238000005266 casting Methods 0.000 abstract 2
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
- F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
- F15B9/16—Systems essentially having two or more interacting servomotors, e.g. multi-stage
-
- 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
- F15B15/18—Combined units comprising both motor and pump
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Reciprocating Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
1,128,868. Valves. ITT INDUSTRIES Inc. 22 March, 1967 [30 March, 1966], No. 13463/67. Heading F2V. [Also in Division F1] An electro-hydraulic actuator especially for operating valves has an actuator piston 90 slidable in a cylinder 36 formed in the central portion of a main casting 16 having a cavity to one side of the cylinder which is closed by a housing 22 to form a reservoir for hydraulic fluid supplied to the cylinder 36 by a pump 58 driven by an electric motor 56, the motor and pump being mounted in the reservoir. The pump 58 has a cylinder 62 screwed into a socket 60 integral with the housing 22 and a piston 64 reciprocated in the cylinder 62 by an eccentric 66 driven by the motor 56. The output of the pump is adjustable from outside the housing 22 by rotation of a shaft (86), Figs. 4 and 5 (not shown), having a pinion (84) meshing with a gear (82) provided on the cylinder 62 which is thus axially adjusted. Fluid enters the cylinder 62 through a side wall port 70 and is discharged past an outlet valve 72 and through passages 74, 76, 101, 104 in the housing 22, main casting 16 and a cylinder end cover 18 into the top of the cylinder 36. The housing 22 may be inverted, Fig. 8 (not shown), whereby fluid is pumped to the bottom of the cylinder 36 through a passage 106 to cause upward movement instead of downward movement of the piston 90 against a spring 94 for the return stroke. A lever 134 pivoted by a cross-pin 136 of the piston-rod 92 may be connected by external linkage to e.g. a further valve. Projections 146 on the piston-rod 92 may operate switches 138. To perform the return stroke an electrically operated by-pass valve 80 is opened with the pump stopped. The piston may be held in mid-stroke by leaving the pump running and partially opening the bypass valve.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US538827A US3353353A (en) | 1966-03-30 | 1966-03-30 | Electro-hydraulic actuator mechanism |
US69239267A | 1967-12-21 | 1967-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1128868A true GB1128868A (en) | 1968-10-02 |
Family
ID=27065933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13463/67A Expired GB1128868A (en) | 1966-03-30 | 1967-03-22 | Electro-hydraulic actuator mechanism |
Country Status (4)
Country | Link |
---|---|
US (1) | US3492921A (en) |
DE (1) | DE1625028A1 (en) |
GB (1) | GB1128868A (en) |
NL (2) | NL6704505A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2410766A1 (en) * | 1974-03-07 | 1975-09-18 | Danfoss As | Servo device for operating gas heating valves - has electro-magnetic pump and magnetic valve arrangement for resetting |
WO2015112862A1 (en) * | 2014-01-24 | 2015-07-30 | Kinze Manufacturing, Inc. | Agricultural implement with electro-hydraulic cylinders |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4375780A (en) * | 1980-01-28 | 1983-03-08 | General Electric Company | Fail-fixed electrohydraulic servosystem |
US5595103A (en) * | 1993-03-18 | 1997-01-21 | Ecoff; William B. | Hydraulic drive assembly for electrical discharge machine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2995116A (en) * | 1958-01-27 | 1961-08-08 | Honeywell Regulator Co | Valve actuator |
US3023763A (en) * | 1960-02-09 | 1962-03-06 | United Aircraft Corp | Balanced flapper valve |
US3316815A (en) * | 1961-12-04 | 1967-05-02 | Garrett Corp | Servo-actuating mechanism for pneumatic analog computers |
-
1967
- 1967-03-22 GB GB13463/67A patent/GB1128868A/en not_active Expired
- 1967-03-28 DE DE19671625028 patent/DE1625028A1/en active Pending
- 1967-03-29 NL NL6704505A patent/NL6704505A/xx unknown
- 1967-12-21 US US692392A patent/US3492921A/en not_active Expired - Lifetime
-
1968
- 1968-12-20 NL NL6818353A patent/NL6818353A/xx unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2410766A1 (en) * | 1974-03-07 | 1975-09-18 | Danfoss As | Servo device for operating gas heating valves - has electro-magnetic pump and magnetic valve arrangement for resetting |
WO2015112862A1 (en) * | 2014-01-24 | 2015-07-30 | Kinze Manufacturing, Inc. | Agricultural implement with electro-hydraulic cylinders |
Also Published As
Publication number | Publication date |
---|---|
NL6818353A (en) | 1969-06-24 |
DE1625028A1 (en) | 1971-04-22 |
NL6704505A (en) | 1967-10-02 |
US3492921A (en) | 1970-02-03 |
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