Bidirectional constant flux gear pump

• Main Authors: HOU XUNBO, SUN YUQING
• Format: Patent
• Language: Chinese; English
• Published: 11.06.2008
• Subjects: BLASTING; 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; WEAPONS

The invention provides a double direction constant flow gear pump, which relates to the technical field of double direction rotation of hydraulic pump. The gear pump mainly comprises a double direction constant flow control device, a general oil pump inlet (I), a general oil pump outlet (P), an oil pump inlet (I'), an oil pump outlet (P'), a normative hydraulic pump oil port (A) and a normative hydraulic pump oil port (B). The double direction constant flow control device comprises a one-way valve (1), a one-way valve (2), a hydraulic control one-way valve (3), a hydraulic control one-way valve (4), a slide valve (5), a flow control orifice (6), a pressure control orifice (7), a cone valve (8), a hydraulic control piston (9) and a hydraulic control piston (10). The invention has the advantages that: when the gear pump rotates in two direction, the constant flow gear pump can keep the position of the oil inlet and oil outlet unchanged, at the same time, maintain constant output flow and realize safe restrictio