Lubricating oil pump device
AssigneeHansung Precision Co., Ltd
InventorChangsun KIM
Life of this patent
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Abstract
A lubricating oil pump device includes a pump main body and a lubricating oil cartridge, wherein the pump main body comprises: a suction part; a discharge part; a piston; a relief valve; a pressure detection sensor; a control part; a first pipeline; an inlet-side check valve, between the suction part and the discharge part, for preventing lubricating oil, having moved to the first pipeline, from flowing back to the lubricating oil cartridge; an outlet-side check valve, between the suction part and the discharge part, for preventing the lubricating oil, having been supplied to a lubricating oil supply pipe, from flowing back to the first pipeline; a second pipeline; a third pipeline; and a fourth pipeline, the pressure detection sensor detects pressure inside the pump main body through the fourth pipeline.
Claims9
A lubricating oil pump device comprising a pump body (100) and a lubricating oil cartridge (200),
- wherein the pump body (100) comprises:
- a suction portion (111) which is connected to the lubricating oil cartridge (200) and receives a lubricating oil from the lubricating oil cartridge (200);
- a discharge portion (112) which is connected to a lubricating oil supply pipe (W) and supplies the lubricating oil to the lubricating oil supply pipe (W);
- a piston (150) which reciprocates in the pump body (100) to supply the lubricating oil to the pump body (100) from the lubricating oil cartridge (200);
- a relief valve (160) configured to adjust a pressure inside the pump body (100);
- a pressure sensor (170) configured to measure the pressure inside the pump body (100);
- a control portion (300) which controls an operation of the piston (150) and an operation of the relief valve (160);
- a first pipe (110) formed between the suction portion (111) and the discharge portion (112);
- an incoming side check valve which prevents the lubricating oil moved to the first pipe (110) between the suction portion (111) and the discharge portion (112) from flowing backward to the lubricating oil cartridge (200);
- an outgoing side check valve which prevents the lubricating oil supplied to the lubricating oil supply pipe (W) between the suction portion (111) and the discharge portion (112) from flowing backward to the first pipe (110);
- a second pipe (120) formed between the first pipe (110) and the relief valve (160);
- a third pipe (130) formed between the first pipe (110) and the piston (150);
- and
- a fourth pipe (140) formed between the first pipe (110) and the pressure sensor (170) and formed between the outgoing side check valve and the lubricating oil supply pipe (W),
- wherein the pressure sensor (170) senses a pressure inside the pump body (100) through the fourth pipe (140), and
- wherein the relief valve (160) is connected to the first pipe (110) and the second pipe (120),
- wherein when the detected pressure exceeds a pressure preset by a user, the control portion (300) controls an operation of the piston (150) to open the third pipe (130) using a pressure relief signal.
A lubricating oil pump device comprising a pump body (100) and a lubricating oil cartridge (200),
- wherein the pump body (100) comprises:
- a suction portion (111) which is connected to the lubricating oil cartridge (200) and receives a lubricating oil from the lubricating oil cartridge (200);
- a discharge portion (112) which is connected to a lubricating oil supply pipe (W) and supplies the lubricating oil to the lubricating oil supply pipe (W);
- a piston (150) which reciprocates in the pump body (100) to supply the lubricating oil to the pump body (100) from the lubricating oil cartridge (200);
- a relief valve (160) configured to adjust a pressure inside the pump body (100);
- a pressure sensor (170) configured to measure the pressure inside the pump body (100);
- a control portion (300) which controls an operation of the piston (150);
- a first pipe (110) formed between the suction portion (111) and the discharge portion (112);
- an incoming side check valve which prevents the lubricating oil moved to the first pipe (110) between the suction portion (111) and the discharge portion (112) from flowing backward to the lubricating oil cartridge (200);
- an outgoing side check valve which prevents the lubricating oil supplied to the lubricating oil supply pipe (W) between the suction portion (111) and the discharge portion (112) from flowing backward to the first pipe (110);
- a second pipe (120) formed between the first pipe (110) and the relief valve (160);
- a third pipe (130) formed between the first pipe (110) and the piston (150);
- and
- a fourth pipe (140) formed between the outgoing side check valve and the pressure sensor (170) and formed between the outgoing side check valve and the lubricating oil supply pipe (W),
- wherein the pressure sensor (170) detects a pressure inside the pump body (100) through the fourth pipe (140) and is configured to transmit a detection signal to the control portion (300) when the detected pressure is greater than or equal to a pressure set by a user,
- wherein the relief valve (160) is connected to the first pipe (110) and the second pipe (120), and
- wherein the control portion (300) receives the detection signal from the pressure sensor (170) and controls an operation of the piston (150) to open the third pipe (130).
Dependencies are inferred from the claim text.