Motors: expansible chamber type – Cyclically operable – Valveless distribution
Patent
1977-07-01
1979-10-16
Maslousky, Paul E.
Motors: expansible chamber type
Cyclically operable
Valveless distribution
91235, F01L 2102, F01B 718
Patent
active
041709241
ABSTRACT:
Hydraulically powered percussive apparatus for breaking rock, drilling etc. in which a combined spool valve and hammer reciprocates in the bore of a cylinder structure. A high pressure fluid inlet leads to the bore and a low pressure outlet leads from the bore. A fluid flow passage communicates with the bore at two axially spaced locations. As the hammer reciprocates, it cyclically connects, via the bore, the inlet to the passage and the outlet to the passage. Pressures in the inlet and outlet fluctuate between fairly narrow limits whereas the pressure in the passage fluctuates between a pressure approximating inlet pressure and a pressure approximating outlet pressure. The hammer has two operating faces. The first of these is exposed to the relatively steady inlet pressure and the second is subjected to the widely varying pressure in the passage. The direction of the resultant force on the hammer reverses at the pressure in the passage varies from approximately inlet pressure to approximately outlet pressure.
REFERENCES:
patent: 1829246 (1931-10-01), Smith, Sr. et al.
patent: 2104468 (1938-01-01), Osborn
patent: 3376790 (1968-04-01), Matson
patent: 3774502 (1973-11-01), Arndt
patent: 4028995 (1977-06-01), Salmi et al.
Compair Sa (Proprietary) Limited
Maslousky Paul E.
LandOfFree
Hydraulically powered percussive apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulically powered percussive apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulically powered percussive apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-801603