| 摘要 |
PURPOSE:To reduce the quantity of oil flowing into a cooling circuit, by additionally providing an auxiliary head at an end of a cylinder head. CONSTITUTION:By the rotation of a cam rotor 9, tips of sliding plates 41, 42 are constantly maintained in contact with the inner wall of an eccentric annular projection 37 of a front housing 3 during operation thereof. Namely, a pump chamber is partitioned into three compartments by the sliding plates 41, 42. When the cam rotor 9 is rotated clockwise, an oil is sucked in through an oil hole 34, and is discharged through an oil hole 35. The oil accumulated at a lower part of an oil-reserving chamber 30 provided for the auxiliary head 29 is supplied to the part of a shaft seal 8 through the oil holes 34, 35, is passed through a needle bearing 6, and is returned into a crank chamber 4 through a thrust needle bearing 10. |
