GB1253731A - Improvements in regulating valves for fluids - Google Patents
Improvements in regulating valves for fluidsInfo
- Publication number
- GB1253731A GB1253731A GB275869A GB275869A GB1253731A GB 1253731 A GB1253731 A GB 1253731A GB 275869 A GB275869 A GB 275869A GB 275869 A GB275869 A GB 275869A GB 1253731 A GB1253731 A GB 1253731A
- Authority
- GB
- United Kingdom
- Prior art keywords
- orifice
- spool
- port
- flow
- spring
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Power Steering Mechanism (AREA)
- Safety Valves (AREA)
Abstract
1,253,731. Valves. ROBERT BOSCH G.m.b.H. 17 Jan., 1969 [17 Jan., 1968], No. 2758/69. Heading F2V. [Also in Divisions G2-G3] A flow regulator for controlling the flow from pump 1 to a steering cylinder 10 has a spool 12 provided with a lateral metering orifice 19 and biased leftwards by spring 17 such that, at low pump speeds, by-pass port 6 is closed and work port 8 is open to receive fluid passing through orifice 19. When the pressure drop across orifice 19 reaches a certain level, the spool begins to open port 6 so as to allow bypass flow, and the flow rate to cylinder 10 will then rise, fall or remain constant with increasing pump delivery according to the angle at which orifice 19 is disposed relative to port 6. This angle can be adjustable or maintained constant by preventing spool rotation such as by anchoring spring 17, by using a conical spring or by a guide pin. There may be a pair of orifices 19 and these or a single orifice may be embodied in an adjustable and removable end of the spool. Relief ball 27 vents chamber 23 to allow total by-pass when excess load pressures arise. A damping bleed orifice 15 feeds chamber 23. In Fig. 6, not shown, grooves (34) in the spool replace orifice 15.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681675469 DE1675469A1 (en) | 1968-01-17 | 1968-01-17 | Flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1253731A true GB1253731A (en) | 1971-11-17 |
Family
ID=5686697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB275869A Expired GB1253731A (en) | 1968-01-17 | 1969-01-17 | Improvements in regulating valves for fluids |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1675469A1 (en) |
| FR (1) | FR1587005A (en) |
| GB (1) | GB1253731A (en) |
| SE (1) | SE338242B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114797149A (en) * | 2022-05-09 | 2022-07-29 | 叶康 | Plate type fractionating tower |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2402017C2 (en) * | 1974-01-17 | 1983-03-31 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Flow control device for a rotary piston pump, in particular for power steering of motor vehicles |
| DE2700058C2 (en) * | 1977-01-03 | 1987-05-07 | Alfred Teves Gmbh, 6000 Frankfurt | Valve arrangement |
| DE3137001A1 (en) * | 1981-09-17 | 1983-03-24 | Walter 6370 Oberursel Schopf | Pump combination with flow rate control device |
| US4570662A (en) * | 1984-04-09 | 1986-02-18 | General Motors Corporation | Demand responsive flow control valve |
| DE4317786C1 (en) * | 1993-05-28 | 1994-11-10 | Luk Fahrzeug Hydraulik | Valve arrangement |
| DE4317881C2 (en) * | 1993-05-28 | 1997-02-06 | Luk Fahrzeug Hydraulik | Valve arrangement |
| DE19717794C2 (en) * | 1997-04-26 | 1999-06-17 | Zahnradfabrik Friedrichshafen | Positive displacement pump |
-
1968
- 1968-01-17 DE DE19681675469 patent/DE1675469A1/en active Pending
- 1968-10-15 FR FR1587005D patent/FR1587005A/fr not_active Expired
-
1969
- 1969-01-16 SE SE55569A patent/SE338242B/xx unknown
- 1969-01-17 GB GB275869A patent/GB1253731A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114797149A (en) * | 2022-05-09 | 2022-07-29 | 叶康 | Plate type fractionating tower |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1675469A1 (en) | 1970-05-14 |
| FR1587005A (en) | 1970-03-06 |
| SE338242B (en) | 1971-08-30 |
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