Engine oil supply apparatus
First Claim
1. An engine oil supply apparatus comprising:
- a first oil pump driven in synchronism with a crankshaft and drawing oil through a first oil passage from an oil holder holding oil;
a second oil pump connected in series with the first oil pump through a connection oil passage and driven independently of the first oil pump;
a first supply oil passage for supplying the oil to a first circulation section from the first oil pump; and
a second supply oil passage for supplying oil to a second circulation section from the second oil pump,a first oil reservoir which holds oil to be supplied to the second oil pump, the first oil reservoir being shielded from the outside, and is provided independently of the oil holder.
1 Assignment
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Accused Products
Abstract
In order to provide an engine oil supply apparatus including a second oil pump (12) which can draw in and discharge oil quickly regardless of whether or not a first oil pump (11) is driven and which does not need to be large, an engine oil supply apparatus (Y) includes a first oil pump (11) drawing oil through a first oil passage (21) from an oil holder (13) holding oil, a second oil pump (12) connected in series with the first oil pump (11) through a connection oil passage (26) and driven independently of the first oil pump (11), a first supply oil passage (23) for supplying oil to a first circulation section (41) from the first oil pump (11), and a second supply oil passage (24) for supplying oil to a second circulation section (42) from the second oil pump (12). In the engine oil supply apparatus (Y), a first oil reservoir (15) holds oil to be supplied to the second oil pump (12) and is provided independently of the oil holder (13) is provided.
10 Citations
11 Claims
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1. An engine oil supply apparatus comprising:
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a first oil pump driven in synchronism with a crankshaft and drawing oil through a first oil passage from an oil holder holding oil; a second oil pump connected in series with the first oil pump through a connection oil passage and driven independently of the first oil pump; a first supply oil passage for supplying the oil to a first circulation section from the first oil pump; and a second supply oil passage for supplying oil to a second circulation section from the second oil pump, a first oil reservoir which holds oil to be supplied to the second oil pump, the first oil reservoir being shielded from the outside, and is provided independently of the oil holder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An engine oil supply apparatus comprising:
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a first oil pump driven in synchronism with a crankshaft and drawing oil through a first oil passage from an oil holder holding oil; a second oil pump provided in parallel with the first oil pump and driven independently of the first oil pump; a first supply oil passage for supplying oil to a first circulation section from the first oil pump; and a second supply oil passage for supplying oil to a second circulation section from the second oil pump, wherein oil is supplied to the second oil pump through a second oil passage, and the second oil passage is disposed independently of a first oil passage for supplying oil to the first oil pump, and wherein a fifth valve for controlling circulation of oil to the second circulation section is disposed in a connection oil passage connecting the first oil pump and the second oil pump.
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Specification