ES8107367A1 - Control flow distributor for hydraulic servo steering - has sleeve with flow ports and internal control piston, forming pressure control follower - Google Patents
Control flow distributor for hydraulic servo steering - has sleeve with flow ports and internal control piston, forming pressure control followerInfo
- Publication number
- ES8107367A1 ES8107367A1 ES497115A ES497115A ES8107367A1 ES 8107367 A1 ES8107367 A1 ES 8107367A1 ES 497115 A ES497115 A ES 497115A ES 497115 A ES497115 A ES 497115A ES 8107367 A1 ES8107367 A1 ES 8107367A1
- Authority
- ES
- Spain
- Prior art keywords
- control
- flow
- sleeve
- piston
- hydraulic servo
- 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
- B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
- Fluid-Pressure Circuits (AREA)
- Servomotors (AREA)
Abstract
The flow control valve for a hydraulic steering servo has a control sleeve (20) with inlet and outlet ports and an inner control piston (15) with a stepped profile to control the fluid flow. The edges of flow grooves provide a non-turbulent flow with a low noise. The control provides a central setting without any flow, with progressive flow when the central piston is displaced. A direction control provides the steering control. Alternately, two similar valves are operated by steering yokes. The flow valve is of simple design and provides a low cost component.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7929046A FR2508566A1 (en) | 1979-11-26 | 1979-11-26 | Control flow distributor for hydraulic servo steering - has sleeve with flow ports and internal control piston, forming pressure control follower |
Publications (2)
Publication Number | Publication Date |
---|---|
ES497115A0 ES497115A0 (en) | 1981-10-01 |
ES8107367A1 true ES8107367A1 (en) | 1981-10-01 |
Family
ID=9232080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES497115A Expired ES8107367A1 (en) | 1979-11-26 | 1980-11-25 | Control flow distributor for hydraulic servo steering - has sleeve with flow ports and internal control piston, forming pressure control follower |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3043968A1 (en) |
ES (1) | ES8107367A1 (en) |
FR (1) | FR2508566A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4408628C2 (en) * | 1994-03-09 | 1996-11-28 | Claas Ohg | Steering valve |
DE4422556C1 (en) * | 1994-06-28 | 1995-10-05 | Daimler Benz Ag | Rack=and=pinion steering system for vehicle with servo motor |
DE19508981C1 (en) * | 1995-03-13 | 1996-07-18 | Daimler Benz Ag | Power-assisted rack and pinion steering with swinging pinion axis |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2808120A (en) * | 1953-06-23 | 1957-10-01 | Chrysler Corp | Hydraulic power steering unit with valve reaction elements of unequal area |
DE2128909C3 (en) * | 1971-06-11 | 1980-03-27 | Integral Hydraulik & Co, 4000 Duesseldorf | Steering valve for hydraulic power steering equipment |
DE2317089A1 (en) * | 1973-04-05 | 1974-10-24 | Zahnradfabrik Friedrichshafen | CONTROL VALVE, IN PARTICULAR FOR POWER STEERING |
DE2426712C3 (en) * | 1974-06-01 | 1979-10-31 | Integral Hydraulik Langen & Co, 4000 Duesseldorf | Power steering device for vehicles, in particular those with accumulator steering |
FR2355185A2 (en) * | 1976-02-27 | 1978-01-13 | Citroen Sa | PRESSURIZED FLUID ASSISTED MECHANICAL CONTROL DEVICE |
IT1058691B (en) * | 1976-03-29 | 1982-05-10 | Riva Calzoni Spa | HYDRAULIC POWER STEERING FOR VEHICLES |
DE2745987C2 (en) * | 1977-10-13 | 1982-10-21 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Hydraulic power steering, in particular for motor vehicles |
DE2747484A1 (en) * | 1977-10-22 | 1979-04-26 | Bosch Gmbh Robert | HYDRAULIC STEERING AMPLIFIER FOR ACCUMULATOR AND FLOW STEERING |
-
1979
- 1979-11-26 FR FR7929046A patent/FR2508566A1/en active Granted
-
1980
- 1980-11-21 DE DE19803043968 patent/DE3043968A1/en active Granted
- 1980-11-25 ES ES497115A patent/ES8107367A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3043968C2 (en) | 1992-04-09 |
ES497115A0 (en) | 1981-10-01 |
FR2508566A1 (en) | 1982-12-31 |
FR2508566B1 (en) | 1983-09-09 |
DE3043968A1 (en) | 1981-06-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19970519 |