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Barking wood with pulsed jets

, : Barking wood with pulsed jets. Lesnaya Promyshlennost' ( 2): 28

A note on the development in Russia of the LO-48 unit for pulsed-jet barking of roundwood. A centring device ensures a constant distance from nozzle orifice to the wood surface with changing log diameter.

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Related references

Kislitsyna, G.F., 1977: Design parameters in barking wood by pulsed hydraulic jets. Laboratory experiments are described in which specimens of autumn-felled pine 24-28 cm in diameter and 0.5 m long were barked by pulsed hydraulic jets. Empirical equations were obtained for the influence on barking of the tangential and vertical a...

Dmitriev, Y.Y.; Kislitsina, G.F., 1975: Barking roundwood with pulsed hydraulic jets. A note describing promising laboratory experiments in the USSR on the barking of roundwood of various sizes and conditions by means of pulsed water jets. Pulsed jets require much less energy than a constant jet. The experiments were made with a pu...

Dmitriev, Y.Y.; Kislitsyna, G.F., 1978: Investigation of pulsed jets of fluid used for barking roundwood. A theoretical study was made of the dynamic effect of the jets on the logs. The results can be used in designing the pull-through units of hydraulic barkers.

Kislitsyna, G.F.; Grigor' ev, A.N., 1984: Barking elements of trees with pulsed jets of liquid. Trials were made with a special test rig to bark the crown part of trees before chipping. The rig consists of a frame with a ring to confine and compact the crown, and the tree is fed by a carriage (0.1-2 m/s) to the jet nozzles which can be varie...

Schlaghamersky, A., 1972: Barking of conifer wood, especially Scots Pine, with the Rindab barking implement. Describes work studies on: (a) large Spruce and Silver Fir stemwood (mean stem volume 1.75 m3) using one tractor (a Welte Okonom 80 forest tractor) with a driver and one other worker; (b) large Scots Pine (mean volume 0.7 m3) using one tractor for...

Arvesen, A., 1965: Barking 2- and 3-m. pulp-wood by tractor-mounted barking machine. Describes the VK-16 barker and the organization of work, setting of knives, etc. Results of time studies on barking 110 cu. m. of 2-m. and 84 cu. m. of 3-m. Spruce pulpwood are tabulated. Total working-site time (barking, running idle, moving the...

Kislitsyna, G.; Grigor'-Ev, A., 1984: Barking of tree elements by impulse jets of liquids. Izvestiia vysshikh uchebnykh zavedenii: lesnoi zhurnal: ) 55-58

Dmitriev, I.; Kislitsyna, G., 1978: Study of impulse jets of liquid as applied to barking of timber. Izvestiia vysshikh uchebnykh zavedenii Lesnoi zhurnal: ) 44-49

Kanauchi, T., 1970: Mechanical characteristics of barking tools and machines. II. Effects of barking velocity on barking efficiency of barker manufactured for trial

Kanauchi, T., 1970: Mechanical characteristics of barking tools and machines: Effects of (II) barking velocity, and (III) log diameter, on barking efficiency of barker manufactured for trial. A prototype machine is described and results are presented of tests on five species with three types of chain at different barking velocities. The barking rate increased with velocity, and energy consumption decreased, the effort varying with the...