Motor vehicles – Surface effect vehicles – Dynamic seal or fluid curtain
Patent
1992-07-22
1994-03-15
Mitchell, David M.
Motor vehicles
Surface effect vehicles
Dynamic seal or fluid curtain
180140, 180141, B62D 506
Patent
active
052939537
ABSTRACT:
A rear wheel steering system is disposed in a rear wheel steering mechanism and has a power cylinder for generating a power for steering the rear wheels in response to a liquid pressure. The power cylinder is connected to a pump as a source of generating the liquid pressure through a high pressure passage and further to a reservoir tank through a low pressure passage. The high pressure passage is connected to the low pressure passage through a relief passage on the pump side and a relief passage on the power cylinder side, the relief passages being disposed in parallel to each other. The rear wheel steering system is provided with a passage shifting system for closing the relief passages during stationary period of time while opening each of the relief passages during operation and dividing the high pressure passage between the relief passages into sections and with a narrowed passage portion disposed at the relief passage on the power cylinder side. Operation of the passage shifting system independently allows the high pressure passage on the pump side and the high pressure passage on the power cylinder side to be communicated with the low pressure passage. At this time, the liquid pressure from the power cylinder is gradually released by the action of the narrowed passage portion. The liquid pressure withdrawn from the pump is rapidly released to the low pressure passage without interference with the narrowed passage portion.
REFERENCES:
patent: 4657102 (1987-04-01), Kanazawa et al.
patent: 4770264 (1988-09-01), Wright et al.
patent: 4896737 (1990-01-01), Kanazuma et al.
patent: 4953652 (1990-09-01), Ohmura et al.
patent: 5060743 (1991-10-01), Oda et al.
Copy of Japanese Patent Unexamined Publication No. 152,977/1987.
Dickson Paul
Mazda Motor Corporation
Mitchell David M.
LandOfFree
Rear wheel steering system for a vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rear wheel steering system for a vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rear wheel steering system for a vehicle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1531342