TH66829B - Gas station - Google Patents

Abstract

Page 1 of 1 page Summary of invention To provide an oil pump which limits the movement in the axial direction of the oil pump shaft. The rigidity of the inner rotor guarantees a reduced size of the oil pump and eliminates restrictions on This arrangement of the gas station and surrounding components improves the degree of freedom. Design better internal combustion engines The fuel pump (50) includes a thick first cover assembly (55) and a second cover assembly. (56) The first cover assembly (55) covering the oil pump shaft cover (54) shall include a circular hole (55a) of approximately the same diameter as the center cover diameter of the oil pump shaft (53). and It will support the oil pump shaft (53). The second cover assembly (56) will include a specific shaped hole (56a) that forms Shaped from a large diameter hole (56b) and a small diameter hole (56c). The shaft The fuel pump (53) shall include a groove section (53a) formed in a direction surrounding the groove section (53a) so that Attaches to the small diameter hole (56c) of the second cover assembly (56) of the oil pump shaft. (53) is supported by a fuel pump cover (54) and a first cover assembly (55), hole type size. The small diameter (56c) allows for attachment to the groove-shaped part (53a), the first cover assembly (55), and The second cover assembly (56) is secured together with the fuel pump cover (54).

Claims (5)

Disclaimer (all) that will not appear on the advertisement page: Page 1 of 3 pages. 1. Gas station (50) which includes Outer rotor (51) Inner rotor (52) Oil pump shaft (53) formed into the inner rotor (52) and the oil pump housing (54) which covers the outer rotor (51) by the gas pump. (50) continues to include Thick first cover assembly (55), which covers the fuel pump cover (54), in which the first cover assembly (55) includes a circular hole (55a) of the same diameter. Approximately the diameter of the oil pump shaft (53), the first cover assembly (55) supporting the axial force of the oil pump shaft (53) and the second cover assembly (56), which covers the cover. Cover the gas station (54) in which the second cover assembly (56) includes a custom-shaped hole (56a) formed in such a way that a hole type size The large diameter (56b) and the small diameter hole (56c) are partially overlapped with each other. The oil pump shaft (53) includes a groove (53a) that forms a cross across the surrounding direction. (53a) was fastened to the small diameter type hole (56c) of the second cover assembly (56) the oil pump shaft (53) was supported by the fuel pump cover (54) and assembly. First cover (55) A small diameter type hole (56c) of the second cover assembly (56) has been made. The groove part (53a) placed on the oil pump shaft (53) and the first cover assembly (55) and the second cover assembly (56) have been tightened in. With the oil pump housing (54) 2. The oil pump according to claim 1, where the first (55) cover assembly has formed a thicker form. Second cover assembly piece (56) page 2 of the number 3 pages. 3. Oil pump according to claim 1 or item 2, where the oil pump shaft (53) includes a slotted assembly (536) on one side, which is fitted into the inner rotor. Which the assembly into the shape (536) has a cross-section in the shape of Circular cross-section, which has been partially cut The inner rotor (52) includes a slotted assembly hole (526) in the center of the rotation where the slotted assembly hole (52b) is the same shape as the cross-sectional shape of the slotted assembly (53b). In the oil pump shaft (53), the groove (53a) of the oil pump shaft (53) is installed on a small diameter hole (56c) of the second cover assembly (56) to secure the oil pump shaft. (53) The oil pump shaft (53) is inserted into the circular hole (55a) of the first cover assembly (55) and the slotted assembly (53b) of the fuel pump shaft (53) has been inserted. Fit into the shape Fitment hole (52b) of the inner rotor (52). 4. The oil pump, according to one of the claims 1 to 3, where the fuel pump (50) is used in the internal combustion engine (E), it includes the crankshaft ( 32) Crankcase (20), crankcase cover (60) and clutch (C) internal combustion engine (E) are installed in vehicles with crankshaft (32) that are directed to Also in the horizontal direction and with the tilted cylinder shaft forward The oil pump cover (54) has been formed as a single piece with the crankcase cover (60) .The crankcase cover (60) includes the clutch cover (63), which covers the clutch ( C) A support hole (64) has been formed inside of the crankcase cover (60), where the support hole (64) is positioned in front of the clutch cover (63), where the support hole (64 ) The crankshaft support (32), the oil pump housing (54), was placed in front of the clutch cover (63) and under the support hole (64), and the oil pump drive gear (58) gripped with the drive gear. (39) When the crankcase cover (60) is installed on the crankcase (20), the oil pump drive gear (58) is hooked onto the oil pump shaft (54) and rotates together, where the drive gear (39 ) Assembled with the crankshaft (32) page 3 of the number 3 pages 5. The gas pump, according to one of the claims 1 to No. 4, where the internal combustion engine (E) is installed in a vehicle with a crankshaft (32) that has been Set the direction to the horizontal direction and with the tilted cylinder shaft forward. The internal combustion engine (E) includes a disc centrifugal oil filter (26) installed on the crankshaft (32). The centrifugal oil filter (26) is installed between The main bearing (38) and the drive gear (39), in which the main bearing (38) supports the rotating crankshaft (32), and the first (55) cover assembly and the second cover assembly. (56) has been fixed to Oil pump housing (54) with a number of bolts (80) at least part of the assembly. The first cover (55) and the second cover assembly (56) overlap with the centrifugal oil filter (26) or the driver (39) in the side figure.