Oil Filtration System for Horizontally Opposed Motorcycle Engines

Abstract

The utility model discloses an oil filtration system for a horizontally opposed motorcycle engine, comprising a bottom frame, a support for installing a filter element at the front of the bottom frame, a matching rotor pump installed in the bottom frame, the rotor pump comprising a bottom plate, a pump housing and an end plate, the pump housing being located between the bottom plate and the end plate and the three being connected and fixed by bolts, a cylindrical installation cavity being provided at the lower part of the pump housing, a stator being fixedly installed in the installation cavity, the stator being an internal gear, an eccentric rotor being provided in the stator, the rotor and the stator being internally engaged, an input port being provided at the side of the bottom plate, an output port being provided at the side of the end plate, the output port and the input port being correspondingly connected to the upper and lower sides of the rotor, a drive shaft being fixedly installed at the middle of the rotor, the drive shaft penetrating the end plate and extending out. During operation, the rotor pump extracts the oil at the bottom of the oil pan to the filter element and the heat exchanger, thereby filtering and cooling the oil, which is beneficial to improving lubricity and reducing engine wear.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an oil filtering system for a horizontally opposed motorcycle engine. Background Art

[0002] In a horizontally opposed engine, the engine pistons are evenly distributed on both sides of the crankshaft and move left and right in the horizontal direction. This reduces the overall height of the engine, shortens the length, and lowers the center of gravity of the vehicle, making the vehicle run more smoothly. The engine is installed on the center line of the vehicle, and the torques generated by the pistons on both sides cancel each other out, greatly reducing the vibration of the vehicle during driving, greatly increasing the engine speed, and reducing noise. Horizontally opposed engines are generally used in sports cars and motorcycles that pursue high-speed performance. During the operation of the engine, in order to prevent dry friction between metal parts, the engine is equipped with an oil lubrication system, which continuously pumps oil to the friction surfaces of all transmission parts to form an oil film between the friction surfaces, thereby reducing friction resistance, reducing power consumption, and improving the reliability and durability of the engine. Existing horizontal engines generally use built-in filters, which are not convenient to disassemble and assemble during maintenance. Utility Model Content

[0003] The purpose of the utility model is to provide an oil filtering system for a horizontally opposed motorcycle engine to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil filtration system for a horizontally opposed motorcycle engine, comprising a bottom frame, a support for installing a filter element is provided at the front of the bottom frame, a matching rotor pump is installed in the bottom frame, the rotor pump comprises a bottom plate, a pump casing and an end plate, the pump casing is located between the bottom plate and the end plate and the three are connected and fixed by bolts, a cylindrical installation cavity is provided at the lower part of the pump casing, a cylindrical stator is fixedly installed in the installation cavity, the stator is an internal gear, an eccentric rotor is provided in the stator, the rotor and the stator are internally engaged, the tooth shape of the stator and the rotor is formed according to the swing trajectory of the cycloid, an input port is provided on the side of the bottom plate, an output port is provided on the side of the end plate, the output port and the input port are correspondingly connected to the upper and lower sides of the rotor, a drive shaft is fixedly installed in the middle of the rotor, and the drive shaft passes through the end plate and extends out.

[0005] Preferably, an arc-shaped through hole a is provided on the upper side of the base plate, and the through hole a is connected to the inner end of the input port. A through hole b connected to the mounting cavity is provided on the upper part of the pump housing, and the through hole b is arc-shaped and opposite to the through hole a on the circumference.

[0006] Preferably, an arc-shaped groove is provided on the lower side of the end plate, and the inner end of the output port is connected to the through hole b through the groove.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility filter system is installed at the bottom of the engine. When running, the rotor pump draws the oil at the bottom of the oil pan to the filter element and the heat exchanger to filter and cool the oil, which is beneficial to improve the lubricity and reduce the wear of the engine, and the externally installed filter element is convenient for disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0009] Figure 2 This is a schematic diagram of the explosion structure of the rotor pump of the utility model;

[0010] Figure 3 This is a schematic diagram of the coordination of the rotor and stator of the utility model.

[0011] In the figure: 1, bottom frame; 2, support; 3, rotor pump; 301, bottom plate; 302, pump housing; 303, end plate; 304, input port; 305, through hole a; 306, through hole b; 307, output port; 308, groove; 309, stator; 310, rotor. DETAILED DESCRIPTION

[0012] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0013] See also Figure 1-3 The utility model provides a technical solution: an oil filtration system for a horizontally opposed motorcycle engine, comprising a bottom frame 1, a support 2 for installing a filter element is provided at the front of the bottom frame 1, a heat exchanger is connected in series with the filter element, the filter element and the heat exchanger are both located outside the engine, and the filter element adopts a mature product currently available on the market. A matching rotor pump 3 is installed in the bottom frame 1, and the rotor pump 3 includes a bottom plate 301, a pump housing 302, and an end plate 303. The bottom frame 1 is installed at the bottom of the horizontally opposed engine, and an oil pan is installed at the bottom of the bottom frame 1 for sealing. The pump housing 302 is located between the bottom plate 301 and the end plate 303, and the three are connected and fixed by bolts. A cylindrical installation cavity is provided at the lower part of the pump housing 302, and a cylindrical stator 309 is fixedly installed in the installation cavity, and the stator 309 is an internal gear.

[0014] An eccentric rotor 310 is provided in the stator 309. The rotor 310 is intermeshed with the stator 309. The tooth shapes of the stator 309 and the rotor 310 are formed according to the swinging trajectory of the cycloid. The rotor 310 divides the inner cavity of the stator 309 into two oil chambers. The volumes of the two oil chambers are alternately increased and decreased to achieve oil suction and oil pumping. An input port 304 is provided on the side of the bottom plate 301, and an output port 307 is provided on the side of the end plate 303. The output port 307 and the input port 304 are connected to the upper and lower sides of the rotor 310 respectively. A drive shaft is fixedly installed in the middle of the rotor 310. The drive shaft passes through the end plate 303 and extends out. The drive shaft is driven to rotate by the crankshaft of the engine.

[0015] The upper side of the bottom plate 301 is provided with an arc-shaped through hole a305, which is connected to the inner end of the input port 304. The upper part of the pump housing 302 is provided with a through hole b306 connected to the installation cavity. The through hole b306 is arc-shaped and is opposite to the through hole a305 on the circumference. The lower side of the end plate 303 is provided with an arc-shaped groove 308, and the inner end of the output port 307 is connected to the through hole b306 through the groove 308. The rotor pump 3 pumps the engine oil in the engine to the external filter element and heat exchange, heat exchange and cool the engine oil, which is conducive to improving the lubricity of the engine oil, and the external filter element is convenient for disassembly and assembly during maintenance.

[0016] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil filtration system for a horizontally opposed motorcycle engine, comprising a bottom frame (1), a support (2) for mounting a filter element being provided at the front of the bottom frame (1), characterized in that: A matching rotor pump (3) is installed in the bottom frame (1), and the rotor pump (3) comprises a bottom plate (301), a pump housing (302), and an end plate (303). The pump housing (302) is located between the bottom plate (301) and the end plate (303), and the three are connected and fixed by bolts. A cylindrical installation cavity is provided at the lower part of the pump housing (302), and a cylindrical stator (309) is fixedly installed in the installation cavity. The stator (309) is an internal gear, and an eccentric rotor (309) is provided in the stator (309). 10), the rotor (310) and the stator (309) are internally engaged, the tooth shapes of the stator (309) and the rotor (310) are formed according to the swing trajectory of the cycloid, the side of the bottom plate (301) is provided with an input port (304), the side of the end plate (303) is provided with an output port (307), the output port (307) and the input port (304) are connected to the upper and lower sides of the rotor (310) respectively, and a drive shaft is fixedly installed in the middle of the rotor (310), and the drive shaft passes through the end plate (303) and extends out.

2. The oil filtration system for a horizontally opposed motorcycle engine according to claim 1, characterized in that: An arc-shaped through hole a (305) is provided on the upper side of the bottom plate (301), and the through hole a (305) is connected to the inner end of the input port (304). A through hole b (306) connected to the installation cavity is provided on the upper part of the pump housing (302), and the through hole b (306) is arc-shaped and is opposite to the through hole a (305) in position on the circumference.

3. The oil filtration system for a horizontally opposed motorcycle engine according to claim 2, characterized in that: An arc-shaped groove (308) is provided on the lower side of the end plate (303), and the inner end of the output port (307) is connected to the through hole b (306) through the groove (308).

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