Steering control unit with flow amplification

Details Steering control unit with flow amplification Steering control unit with flow amplification

1987-07-24

1988-07-26

Look, Edward K.

Power plants

Pressure fluid source and motor

Expansible chamber type volumetric responsive measuring...

91467, 137596, 13759613, 13762521, 180132, F01C 110, F62D 508

Patent

active

047591820

ABSTRACT:
A fluid controller (17) is disclosed for controlling the flow of fluid to a steering cylinder (19). The controller includes a fluid meter (51) and a valving arrangement (49) including a valve spool (65) and a sleeve (67), which define a main fluid path including a main variable flow control orifice (121), the fluid meter (51), a variable flow control orifice (123), the steering cylinder (19), and a variable flow control orifice (125). In accordance with the invention, the spool and sleeve define an amplification fluid path including a variable amplification orifice (129) in parallel with the main fluid path, and disposed to amplify the flow of fluid through the meter. In one embodiment of the invention, the amplification fluid path communicates with the main fluid path upstream of the main variable flow control orifice, and at a location downstream of the fluid meter, but upstream of the variable flow control orifice (123). The amplification fluid path provides an amplification ratio which can be made to vary, in any desired manner, as a function of valving displacement.

REFERENCES:
patent: 3564848 (1971-02-01), Baatrup et al.
patent: 3584537 (1971-06-01), Schulz
patent: 4052929 (1977-10-01), Baatrup et al.
patent: 4096883 (1978-06-01), Yip
patent: 4167893 (1979-07-01), Johnson
patent: 4556272 (1986-01-01), Petersen et al.

Affiliated with

Also associated with

Rating

Steering control unit with flow amplification does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Steering control unit with flow amplification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Steering control unit with flow amplification will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-252258