 Driving force transmitting structure for automatic seatbelt system |
| In view of the above circumstances, it is a primary object of the present invention to provide a ... |
|
| Booklet |
| What is claimed is new and desired to be secured by Letters Patent of the United States is: 1. A ... |
|
| Vehicle steering system |
| The invention provides a steering system for a vehicle, the system being adapted to assume a ... |
|
| Power assisted steering system |
| OF DRAWINGS The power assisted steering system shown schematically in FIG. 1 has a reservoir 1 of ... |
|
| Below ground mining vehicle and method for converting an above ground vehicle to the same |
| OF THE PREFERRED EMBODIMENTS Reference will now be made to the drawings wherein like structures ... |
|
| Drive arrangement for all-wheel drive vehicles |
| invention concerns a drive arrangement for all-wheel drive vehicles with two axle groups. In drive ... |
|
| Power steering apparatus |
| The present invention has been made in light of the foregoing. Specifically, overcoming the ... |
|
| Hydrostatic steering device |
| What is claimed is: 1. In a hydrostatic steering device having a valve member rotatably ... |
|
| Control scheme for power modulation of a free piston Stirling engine |
| The present invention provides a new control system which essentially maintains a constant ... |
|
|
Hydraulic distributor with a reaction biased control member
| Details |
Inventors: Bacardit, Juan S.;
Assignee: Bendiberica S.A. (Barcelona, ES)
Primary Examiner: Cohan; Alan
Assistant Examiner:
Attorney, Agent or Firm: Palguta; Larry J., Schoenle; Paul D., Decker; Ken C.
The distributor, more particularly for power steering systems, includes two cooperating elements defining two parallel fluid flow circuits (10,11 ) each including three serially arranged restrictor means (1,2,3;1',2',3') actuable during relative displacement of said cooperating elements, and, for each circuit, in parallel with second restriction means (2;2') an external restriction means (EV;EV' ) controlled by external control means so as to selectively vary the position of the transition point between the first and second portions of the characteristic curve, assistance pressure delivered by the distributor/reaction on the input control member of the distributor (14). |
|
DETAILED DESCRIPTION I claim: 1.
Hydraulic distributor, more particularly for a vehicle power steering system, including two cooperating elements (20,23) displaceable one relative to the other under the action of a control member (14,21) and defining at least one modulable fluid flow circuit (10,11) establishing communication between a pressurized fluid source (12) and a reservoir (13), said circuit including serially arranged first (1;1'), second (2;2') and third (3;3') valve means simultaneously actuated during a relative displacement between said two elements, the output of said first valve means (1;1') being connectable (15;16) to one end of a hydraulic motor (17) controlled by the distributor, and the output of said second valve means (2;2') being connectable (18;19) to hydraulic means for applying a reaction to said control member and furnishing a characteristic actuating pressure curve of said hydraulic motor torque applied to said control member with a first initial portion (0-1) of zero slope and a following second portion (1-2) with a given slope, characterized in that the distributor comprises, in parallel with said second valve means (2; 2'), fourth modulable valve means (EV,EV') controlled by additional external control means (35;36) so as to selectively modify the position of the transition point between said first and second portions of the characteristic curve.
2.
Hydraulic distributor according to claim 1, characterized in that it includes, serially arranged between said first (1;1') and second (2;2') valve means, fifth valve means (4;4') actuated during a relative displacement between said two cooperating elements (20,23) so as to determine the slope of a third portion (2-3) of said characteristic curve as from a determined value of the control torque applied to said control member (14,21) of the distributor.
3.
Hydraulic distributor according to claim 2, characterized in that it includes, in parallel with said third valve means (3, 3'), a sixth modulable valve (ED, ED') controlled by additional external control means so as to selectively change the slope of said second portion (1-2) of said characteristic curve
|
| Related patents |
|
|
Control valve for vehicle power steering systems
We claim: 1. A hydraulic control valve for a power assisted steering system for a vehicle, the valve comprising a sleeve member having a bore in the surface of which is ...
|
|
|
Dual rotary valve for variable assist power steering gear for automotive vehicles
Having described a preferred form of my invention, what I claim and desire to secure by U.S. Letters Patent is: 1. In a fluid pressure operated power steering gear ...
|
|
|
Power assisted steering system
It is, therefore, a primary object of the present invention to provide a power assisted steering system wherein the secondary hydraulic pump for the reaction mechanism ...
|
|
|
Power steering system
It is therefore a principle object of the present invention to eliminate aforementioned disadvantage and to provide a power steering system for automotive vehicles, ...
|
|
|
Bit positioning while drilling system
It is a primary object of this invention to provide a simple and inexpensive means for independent determination, at any selected time, a measurement indicative of the ...
|
|
|
Actuator valve
The present invention pertains to an actuator valve for a reciprocating air driven device. In a first aspect of the present invention, additional energy is provided to ...
|
|
|
Constant mesh gear transmission
In accordance with the present invention, selectively controlled clutches are mounted on each of the input driven shafts and counter shafts associated with a transfer ...
|
|
|
Uneven ground vehicles
It is an object of this invention to provide an uneven ground vehicle in which a plurality of wheels, tires or crawlers or the like can always contact a ground surface ...
|
|
|
Apparatus for caster adjustment
We claim: 1. Apparatus employed in combination with each front wheel of a vehicle for adjusting the angle of caster of the front wheel while the vehicle is in motion; ...
|
|
|
Independent rear suspension system for automotive vehicle
An object of the present invention is to improve an independent rear suspension system for an automotive vehicle such that a toe angle of each of rear road wheels of the ...
|
|
|
Navigation and GPS 
