Hydraulic steering system, for an articulated vehicle with wheel steering
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0033641
(2001-12-26)
|
우선권정보 |
DE-0065557 (2000-12-28) |
발명자
/ 주소 |
- Juul, Torben
- Rudolph, Tom
- Clausen, J.o slashed.rgen
|
출원인 / 주소 |
- Sauer-Danfoss Holding A/S
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
5 |
초록
▼
A hydraulic steering system (1) for a vehicle with two steering motor arrangements, particularly an articulated vehicle with wheel steering, with a hydraulic steering unit (2) having a measuring motor section (22, 23), with a selection valve (6), which connects an outlet (L, R) of the steering unit
A hydraulic steering system (1) for a vehicle with two steering motor arrangements, particularly an articulated vehicle with wheel steering, with a hydraulic steering unit (2) having a measuring motor section (22, 23), with a selection valve (6), which connects an outlet (L, R) of the steering unit (2) with either a first steering motor arrangement (7) that preferably acts upon steered wheels, or a second steering motor arrangement (9) that preferably acts upon a converting kit, and which is hydraulically operable via a pilot valve (14), and with a pump (4), which is connected with the steering unit (2) and the pilot valve (14). This permits the vehicle to be steerable in connection with an emergency.
대표청구항
▼
1. A hydraulic steering system for a vehicle with two steering motor arrangements, particularly an articulated vehicle with wheel steering, with a hydraulic steering unit having a measuring motor section, with a selection valve, which connects an outlet of the steering unit with either a first steer
1. A hydraulic steering system for a vehicle with two steering motor arrangements, particularly an articulated vehicle with wheel steering, with a hydraulic steering unit having a measuring motor section, with a selection valve, which connects an outlet of the steering unit with either a first steering motor arrangement or a second steering motor arrangement and which is hydraulically operable via a pilot valve, and with a pump, which is connected with the steering unit and the pilot valve, characterised in that an operating inlet (15) of the pilot valve (14) is connected with an outlet of a change-over valve (18), whose first inlet is connected with the pump (4) and whose second inlet is connected with the outlet (L, R) of the steering unit (2). 2. A steering system according to claim 1, characterised in that the change-over valve (18) is made as a two-way valve. 3. A steering system according to claim 1, characterised in that the outlet (L, R) of the steering unit has two directional lines, between which a second two-way valve (19) is arranged, whose outlet is connected with the second inlet of the change-over valve (18). 4. A steering system according to claim 1, characterised in that the measuring motor section can be switched between two different displacements by means of a pressure controlled second change-over valve (24), the second change-over valve (24) setting the smallest displacement in the pressureless state. 5. A steering system according to claim 1, characterised in that a sensor (10) is arranged on the converting kit, which sensor is connected with a control device (11) that separates the operating inlet (15) of the pilot valve (14) from its outlet when the neutral position of the converting kit is reached. 6. A steering system according to claim 1, characterised in that in the pressureless state the selection valve (6) connects the first steering motor arrangement (7) with the steering unit (2).
이 특허에 인용된 특허 (5)
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Johnson Kenneth C. (Coloma MI), Emergency hydraulic system.
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Shore Daniel B. (Niles IL) Duke Edward D. (Chicago IL), Ground driven hydraulic emergency steering system.
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Hanson Charles B. (Burlington IA), Multi-mode steering system.
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Nystuen Paul A. (West Fargo ND) Batcheller Barry D. (West Fargo ND) Brekkestran Kevin L. (Fargo ND) Kraning Calvin J. (Valley City ND), Steering control system for articulated vehicle.
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Smith William E. (Climax MI) Bowden Charles J. (Galesburg MI), System for providing auxiliary power.
이 특허를 인용한 특허 (2)
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Thomsen, Svend Erik; Rudolph, Tom; Ennemark, Poul, Hydraulic steering.
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Rathke, Rolf-Joachim; Bergmann, Erhard, Hydraulic steering system with protection against uncontrolled steering movements.
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