GB2112902A - A stabilizer utilising hydraulic damping - Google Patents
A stabilizer utilising hydraulic damping Download PDFInfo
- Publication number
- GB2112902A GB2112902A GB08234338A GB8234338A GB2112902A GB 2112902 A GB2112902 A GB 2112902A GB 08234338 A GB08234338 A GB 08234338A GB 8234338 A GB8234338 A GB 8234338A GB 2112902 A GB2112902 A GB 2112902A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- stabilizer
- bore
- housing
- duct
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
- F02D1/08—Transmission of control impulse to pump control, e.g. with power drive or power assistance
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Feedback Control In General (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
- Fluid-Damping Devices (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The stabilizer has a piston 13 slidingly guided in a housing bore 11 and which bounds at its ends pressure chambers 20, 21 which are connected to one another by a duct 22 including a throttle 23. The piston is resiliently connected to a linkage 15, 17 of the regulator, for example an injection pump. In the piston, two parallel extending bores (26, 27) are formed passing through the piston and in which are arranged pressure limiting valves (33, 42) opening and closing in opposite directions. In this way, a stabilizer is provided which has a short regulating time on the occurrence of large sudden changes in load. <IMAGE>
Description
SPECIFICATION
A stabilizer
State of the art
The invention originates from a stabilizer according to the preamble to the main claim. One known stabilizer of that kind has a piston slidingly arranged in a housing and which is loaded on both ends by compression springs and the control rod is connected at one end and the linkage for the regulator is connected at the other end.
However, a stabilizer of that kind has the disadvantage that the regulation times are too long during sudden load changes.
Advantages of the invention
As opposed to this, the stabilizer in accordance with the invention comprising the characterising feature of the main claim has the advantage that the response sensitivity is high, on the other hand the regulation time is short.
Drawing
An embodiment of the invention is illustrated in the drawing by way of example and is explained in detail in the following description. Ths shows in
Figure 1 a longitudinal section through a stabilizer, in Figure 2 a longitudinal section through the piston of the stabilizer.
Description of the embodiment
The stabilizer has a housing in which is formed a bore 11 closed buy a cover 12. A piston 13 is sealingly slidingly arranged in the bore 11 and a compression/tension spring 14 which is supported by a lever 1 5 acts on one end of the piston. The lever 1 5 is rotatably mounted on a shaft 1 6 and is actuated by a control lever 1 7 of the injection pump.
The bore 11 accommodating the piston 13 issues into a recess 1 8 in the housing in which is arranged the lever 1 5. Both the housing recess 18 and the bore 11 are filled with oil. The two pressure chambers in the bore 11 separated by the piston 13 and referenced 20,21 are connected together by a diagrammatically illustrated duct 22 in which is arranged a throttle 23.
The piston 1 3 illustrated in longitudinal section in Figure 2 has two parallel extending bores 26, 27 which are partially closed by a cover 28. Two bores 29, 30 in alignment with the bores 26, 27 are formed in the cover. An annular groove 31 is formed at the bore 30 and surrounding the latter whereby an annular valve seat 32 for a plate-like closure member 33 is provided which is loaded by a compression spring 34. A cylindrical extension 35 which has an helical groove 36 at its end is formed at the end of the piston opposite to the cover 28. A duct 38 proceeds from that end and issues into the bore 27. A similar duct likewise proceeding from the end of the extensionissues into the bore 26.An annular groove 40 is formed at its end facing the extension whereby a valve seat 41 for a plate-like closure member 42 is provided which is urged against the valve seat by a compression spring 43. From that it can be appreciated that the closure members 33, 41 acting as pressure limiting valves open and close in opposite directions. The spring 14 is screwed onto the groove 36 in the extension. Its other end is connected to the lever 15 in a similar manner.
If sudden changes in load occur during a control operation, for example in the direction of the arrow P, then the closure member 33 is raised from the valve seat 32 so that a practically delayfree consequential movement of the piston 13 takes place. As a result of a pressure shock, the closure member 42 is opened in the reverse direction. If the sudden load changes are slight then volume compensation takes place through the duct 22 and indeed damped by the throttle 23. In that way, a good stable behaviour of the control device is guaranteed.
Claims
1. A stabilizer for mechanical regulators, especially injection pump regulators, consisting of a piston guided in a housing and which is in operative association with the control linkage of the regulator, characterised in that, the housing bore (11) accommodating the piston (13) is filled with liquid, that the piston is resiliently connected to the linkage (1 5, 1 7), that the pressure chambers (20, 21) arranged at the ends of the piston are connected to one another by a duct (22) extending parallel to the housing bore and including a throttle (23) and that two pressure limiting valves (33, 42) located in separate passages (26, 29, 39; 27, 30, 38) and in opposed directions are arranged in the piston.
2. A stabilizer according to claim 1, characterised in that, the pressure limiting valves are formed as spring-loaded plate valves.
3. A stabilizer for mechanical regulators substantially as herein described with reference to the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (3)
1. A stabilizer for mechanical regulators, especially injection pump regulators, consisting of a piston guided in a housing and which is in operative association with the control linkage of the regulator, characterised in that, the housing bore (11) accommodating the piston (13) is filled with liquid, that the piston is resiliently connected to the linkage (1 5, 1 7), that the pressure chambers (20, 21) arranged at the ends of the piston are connected to one another by a duct (22) extending parallel to the housing bore and including a throttle (23) and that two pressure limiting valves (33, 42) located in separate passages (26, 29, 39; 27, 30, 38) and in opposed directions are arranged in the piston.
2. A stabilizer according to claim 1, characterised in that, the pressure limiting valves are formed as spring-loaded plate valves.
3. A stabilizer for mechanical regulators substantially as herein described with reference to the accompanying drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19818136124 DE8136124U1 (en) | 1981-12-11 | 1981-12-11 | STABILIZER |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2112902A true GB2112902A (en) | 1983-07-27 |
GB2112902B GB2112902B (en) | 1986-08-06 |
Family
ID=6733814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08234338A Expired GB2112902B (en) | 1981-12-11 | 1982-12-02 | A stabilizer utilising hydraulic damping |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS58106138A (en) |
DE (1) | DE8136124U1 (en) |
GB (1) | GB2112902B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0486227A1 (en) * | 1990-11-13 | 1992-05-20 | General Electric Company | Vibration damper assembly |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0330597Y2 (en) * | 1984-12-24 | 1991-06-27 | ||
JPS61138845U (en) * | 1985-02-20 | 1986-08-28 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE321833B (en) * | 1968-11-08 | 1970-03-16 | Skf Svenska Kullagerfab Ab |
-
1981
- 1981-12-11 DE DE19818136124 patent/DE8136124U1/en not_active Expired
-
1982
- 1982-11-29 JP JP20776982A patent/JPS58106138A/en active Pending
- 1982-12-02 GB GB08234338A patent/GB2112902B/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0486227A1 (en) * | 1990-11-13 | 1992-05-20 | General Electric Company | Vibration damper assembly |
Also Published As
Publication number | Publication date |
---|---|
DE8136124U1 (en) | 1983-05-19 |
JPS58106138A (en) | 1983-06-24 |
GB2112902B (en) | 1986-08-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19921202 |