Wide Angle Piston Type Steering Gear

Outline

A Solenoid Valve Operated Wide Angle Electro-Hydraulic Steering Gear (JH Steering Gear) is capable of steering a rudder to such wide angle as 700 port and 700 starboard, and is optimum for making a Schilling Rudder exhibit its specific character.

A JH Steering Gear has performance accordant with torque requirement of Schilling Rudders.

A JH Steering Gear employs hydraulic pumps of constant discharge, inscribing gear type, and hydraulic cylinders of double-acting piston type.

The Steering Gear is controlled by solenoid operated valves, and hence construction is extremely simple and operation is easy.

The Steering Gear is compactly designed, and excellent in terms of high control accuracy and good respond ability.

The Steering Gear is so constituted that an installation error can be absorbed by spherical bearings adopted for joint parts.

The Steering Gear has been approved by major Classification Societies.

The Steering Gears have been installed on board of variety of ships, and gain public favor.

The Steering Gears can be easily connected to any steering system and automated system, and operate very efficiently.

HYDRAULIC CIRCUIT

GENERAL ARRANGEMENT

SPECIFICATIONS

Model			JH3	JH7	JH10	JH12	JH17	JH22	JH30
Torque at 40angle		t-m	3	7	10	12	17	22	30
Max.rudder angle		Degree	70°×2
Rudder speed		Sec	18/35°-30°(28/35°-30°)
Radius of action		mm	270		360		470		630
Piston diameter		mm	100	140		160		180
Piston rod dia		mm	65	85		90		100
Rated hyd. pressure		kgf/cm2	170	160	168	148	168	188	168
Relieving pressure		kgf/cm2	220	200	210	185	210	235	210
Motor	Normally 1 pump	KW	3.7	5.5	7.5	7.5	11	15	18.5
	Normally 2 pumps		2.2	2.2	3.7	3.7	5.5	7.5	11
Width		mm	360		480		670		840
Length		mm	1255	1355	1590	1735	2040	2185	2700

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