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CN-121993326-A - Saddle-ride type vehicle

CN121993326ACN 121993326 ACN121993326 ACN 121993326ACN-121993326-A

Abstract

The invention provides a straddle-type vehicle. The saddle-ride type vehicle is provided with an internal combustion engine (E), a supercharger (50) for compressing air and supplying the compressed air to the internal combustion engine (E), and a surge tank (60) for introducing pressurized intake air from the supercharger (50) to the surge tank (60), wherein the saddle-ride type vehicle is provided with a first intake passage (T1) extending from the supercharger (50) and connected to the surge tank (60), and a second intake passage (T2) provided separately from the first intake passage (T1) and connected to the surge tank (60) without going through the supercharger (50).

Inventors

  • MAHIRA HIROSHI
  • ICHIKAWA GEN

Assignees

  • 本田技研工业株式会社

Dates

Publication Date
20260508
Application Date
20251030
Priority Date
20241105

Claims (7)

  1. 1. A saddle-ride type vehicle (1) is provided with an internal combustion engine (E), a supercharger (50) for compressing air and supplying the compressed air to the internal combustion engine (E), and a surge tank (60) for introducing supercharged air from the supercharger (50) to the surge tank (60), The saddle-ride type vehicle includes: A first intake passage (T1) extending from the supercharger (50) and connected to the surge tank (60), and And a second intake passage (T2) that is provided separately from the first intake passage (T1) and is connected to the surge tank (60) without passing through the supercharger (50).
  2. 2. The straddle-type vehicle according to claim 1, wherein, The saddle-ride type vehicle is provided with a head part (6) for supporting a front wheel suspension member (3A) at the front part of a vehicle body (5B), and a pair of left and right frame parts (7) which are branched from the head part (6) to the left and right and extend rearward, The surge tank (60) is disposed between the left and right frame parts (7) in a plan view.
  3. 3. The straddle-type vehicle according to claim 1, wherein, The surge tank (60) is provided with a first connection part (62) for connecting the first intake passage (T1) and a second connection part (64) for connecting the second intake passage (T2), The first connection portion (62) and the second connection portion (64) are both disposed on one side in the left-right direction with respect to the vehicle body left-right Center (CL).
  4. 4. The straddle-type vehicle according to claim 1, wherein, The first intake passage (T1) and the second intake passage (T2) are arranged such that central axes (C7, C8) extending inward of the surge tank (60) intersect each other at an acute angle in a plan view.
  5. 5. The straddle-type vehicle according to claim 1, wherein, The surge tank (60) is provided with a first connection part (62) for connecting the first intake passage (T1) and a second connection part (64) for connecting the second intake passage (T2), The second connection part (64) is arranged above the first connection part (62), The intake passage member (47) forming at least a part of the second intake passage (T2) is provided with an outer arrangement portion (47 a) which is arranged on the outer side in the vehicle width direction of the frame portion (7) of the vehicle body (5B), and an inner arrangement portion (47B) which is connected to the rear of the outer arrangement portion (47 a), extends over the frame portion (7) to the inner side in the vehicle width direction, and is connected to the second connection portion (64).
  6. 6. The straddle-type vehicle according to claim 1, wherein, The internal combustion engine (E) is provided with a plurality of cylinders, A plurality of funnels (33F, 34F) connected with each cylinder of the internal combustion engine (E) are arranged in the surge tank (60), The supercharger (50) is provided with an ejection port (53 a) for ejecting the sucked air, The air inlets (33 fa, 34 fa) of the plurality of funnels (33F, 34F) are opened so as to avoid an extension region (T1 ex) of the first air intake passage (T1) extending inward of the surge tank (60).
  7. 7. The straddle-type vehicle according to claim 6, wherein, A throttle device (35) and a fuel injection device (35 a) are provided between the hopper (33F) and the cylinder (33) of the internal combustion engine (E), The throttle device (35) is disposed between the first intake passage (T1) and the fuel injection device (35 a) in the vehicle longitudinal direction.

Description

Saddle-ride type vehicle Technical Field The present invention relates to a saddle-ride type vehicle. The present application claims priority based on japanese patent application No. 2024-194016, filed on 5 at 11 at 2024, and the contents of which are incorporated herein by reference. Background Conventionally, turbochargers that use the energy of exhaust gas from an engine and turbochargers that use a part of the driving force of the engine are known as superchargers used in engines (internal combustion engines) for vehicles. In recent years, an electric supercharger using an electric motor for driving the supercharger has been known (for example, refer to japanese patent application laid-open No. 2009-228624). Disclosure of Invention However, in a saddle-ride type vehicle such as a two-wheeled vehicle, the arrangement space of components is limited as compared with a four-wheeled vehicle. When components are added, the number of supporting members is increased, and therefore, there is a problem that the component arrangement space is further suppressed. The present invention provides a saddle-ride type vehicle in which an intake system including a supercharger used in an internal combustion engine can be configured with a small number of components. In order to achieve the above object, a saddle-ride type vehicle according to an aspect of the present invention employs the following configuration. (1) The saddle-ride type vehicle 1 includes an internal combustion engine E, a supercharger 50 for compressing air and supplying the compressed air to the internal combustion engine E, and a surge tank 60 for introducing supercharged intake air from the supercharger 50 to the surge tank 60, wherein the saddle-ride type vehicle includes a first intake passage T1 extending from the supercharger 50 and connected to the surge tank 60, and a second intake passage T2 provided separately from the first intake passage T1 and connected to the surge tank 60 without passing through the supercharger 50. According to the aspect of the above (1), the second intake passage for natural intake connected to the surge tank without passing through the supercharger is provided separately from the first intake passage for supercharged intake extending from the supercharger, whereby supercharged intake and natural intake are introduced into the common surge tank. By receiving the intake air of the two systems in the common surge tank, the number of components of the intake system including the supercharger can be reduced, and the intake air capacity can be ensured by the surge tank even in the natural intake air, so that the intake efficiency (the ratio of the intake air amount to the volume change in the cylinder) can be improved. (2) In the aspect of (1) above, the saddle-ride type vehicle may include a head portion 6 that supports the front wheel suspension member 3A at the front portion of the vehicle body 5B, and a pair of left and right frame portions 7 that branch from the head portion 6 to the left and right and extend rearward, and the surge tank 60 may be disposed between the left and right frame portions 7 in a plan view. According to the aspect of (2) above, the surge tank is disposed between the left and right frame portions, whereby the capacity of the surge tank can be ensured, and the vehicle body can be suppressed from being enlarged as compared with the case where the surge tank is disposed outside the left and right frame portions. (3) In the aspect of (1) above, the surge tank 60 may include a first connection portion 62 that connects the first intake passage T1 and a second connection portion 64 that connects the second intake passage T2, and the first connection portion 62 and the second connection portion 64 may be disposed on one side in the lateral direction with respect to the vehicle body lateral center CL. According to the aspect of (3) above, the connection portions of the first intake passage and the second intake passage in the surge tank are arranged in a concentrated manner on the side of the vehicle body in the lateral direction, whereby both connection portions can be accessed from the side of the vehicle body in the lateral direction, and manufacturability and maintainability can be improved. (4) In the aspect of (1) above, the first intake passage T1 and the second intake passage T2 may be arranged so that central axes C7 and C8 extending inward of the surge tank 60 intersect each other at an acute angle in a plan view. According to the aspect of (4) above, the center axes of the first intake passage and the second intake passage are disposed at an acute angle to each other, whereby the supercharged intake air and the natural intake air introduced from the intake passages into the surge tank can be prevented from flowing in a manner facing each other. The generation of turbulence in the surge tank can be suppressed, and the backflow of intake air from one of the first intake passage and the second i