THE PLAN METHOD OF HELICAL GEAR OF GEAR PUMP FOR OIL SUPPLY USED IN SHIP ENGINE

A method for planning helical gear of a gear pump for oil supply used in a ship engine is provided to stably use the gear pump by repeatedly forming plural gear teeth and semicircular type gear teeth grooves. A method for planning helical gear of a gear pump for oil supply used in a ship engine comp...

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Bibliographische Detailangaben
1. Verfasser:	LEE, DAE BEOM
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS WEAPONS
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Beschreibung
Zusammenfassung:	A method for planning helical gear of a gear pump for oil supply used in a ship engine is provided to stably use the gear pump by repeatedly forming plural gear teeth and semicircular type gear teeth grooves. A method for planning helical gear of a gear pump for oil supply used in a ship engine comprises a step of repeatedly forming plural gear teeth having curvature surfaces at two sides of a rotation shaft in the helical gear, and semicircular type gear teeth grooves connected to the terminal end of the gear teeth with a normal pressure angle of 20°, a root diameter(21) of 27.56mm, a pitch circle(22) of 35.2mm, an outside diameter(23) of 41.8mm, the tooth thickness(24) of 5.05mm, an addendum(25) of 6.6mm, a top land(26) of 1.97mm, a dedendum(27) of 7.7mm, a tooth space(28) of 4.1mm, and a tooth fillet(29) of R2.05. A pair of helical gear is placed between a connection rotating device and a pump, and is pumped by the rotation generated from the connection rotating device while transferring the rotation to the pump.