Air cleaner device for vehicle

Patent metadata

Field	Value
Publication number	US-9347406-B2
Application number	US-201414444499-A
Country	US
Kind code	B2
Filing date	Jul 28, 2014
Priority date	Jul 31, 2013
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

A compact air cleaner device with a secure intake capacity. An internal combustion engine includes the air cleaner device mounted on a vehicle body frame. The air cleaner device includes an air cleaner case having a filter element therein, and being partitioned into a dirty side chamber and a clean side chamber with a plurality of intake ducts for leading an outside air into the dirty side chamber, the intake ducts being provided so as to form a left-right pair. The intake ducts have intake ports opened outside side portions of the air cleaner case. Paths of the intake ducts leading to discharge ports are housed within the dirty side chamber with bent portions. The discharge ports of the intake ducts forming the left-right pair are disposed so as to be oriented to a central side of the air cleaner case and offset from each other in a forward-rearward direction.

First claim

What is claimed is:

1. An air cleaner device for a vehicle, the vehicle having an internal combustion engine with the air cleaner device being mounted on a vehicle body frame, the air cleaner device comprising:
an air cleaner case having a filter element therein, and being partitioned into a dirty side chamber and a clean side chamber;
a plurality of intake ducts for leading an outside air into the dirty side chamber of the air cleaner case, the intake ducts being provided so as to form a left-right pair;
wherein the intake ducts forming the left-right pair have intake ports opened outside side portions of the air cleaner case, and paths of the intake ducts leading to discharge ports, said paths housed within the dirty side chamber include bent portions;
the discharge ports of the intake ducts forming the left-right pair are disposed so as to be oriented to a central side of the air cleaner case and offset from each other in a forward-rearward direction; and
a connecting tube for leading an intake air into the internal combustion engine is connected to the clean side chamber of the air cleaner case, and the discharge ports of the intake ducts at least partly overlap a suction port of the connecting tube as viewed in a plan view.

2. The air cleaner device for a vehicle according to claim 1 , wherein the intake ducts are oriented upwardly from air cleaner case connecting portions attached so as to penetrate the air cleaner case to the discharge ports, and are inclined to vicinities of a ceiling of the dirty side chamber, and the discharge ports are oriented downwardly.

3. The air cleaner device for a vehicle according to claim 2 ,
wherein a fuel tank is mounted on an upper portion of the vehicle body frame of the vehicle; and
the air cleaner case is disposed between a head pipe of the vehicle body frame and the fuel tank, and the intake ports of the intake ducts are opened to a rear of the air cleaner case, and are disposed more to a front than a rear end portion of the air cleaner case.

4. The air cleaner device for a vehicle according to claim 2 ,
wherein a fuel tank is mounted on an upper portion of the vehicle body frame of the vehicle; and
the air cleaner case is disposed between a head pipe of the vehicle body frame and the fuel tank, and the intake ports of the intake ducts are disposed so as to be opened to a front of the air cleaner case.

5. The air cleaner device for a vehicle according to claim 2 ,
wherein the air cleaner case is divided into an upper side case half body and a lower side case half body, the filter element is disposed between the upper side case half body and the lower side case half body, the dirty side chamber is defined within the upper side case half body, and the clean side chamber is defined within the lower side case half body;
the upper side case half body of the air cleaner case is formed so as to be longer in a vehicle width direction than in a forward-rearward direction of the vehicle; and
the filter element has a plate shape, and is disposed such that a longitudinal direction of the filter element is parallel to the vehicle width direction.

6. The air cleaner device for a vehicle according to claim 2 , wherein a connecting tube for leading an intake air into the internal combustion engine is connected to the clean side chamber of the air cleaner case, and the discharge ports of the intake ducts at least partly overlap a suction port of the connecting tube as viewed in a plan view.

7. The air cleaner device for a vehicle according to claim 2 , wherein the intake ducts are formed such that lengths of the intake ducts from air cleaner case connecting portions attached so as to penetrate the air cleaner case to the discharge ports are longer than lengths of the intake ducts from the air cleaner case connecting portions to the intake ports.

8. The air cleaner device for a vehicle according to claim 2 , wherein engaging portions are formed on parts of the intake ducts, the parts of the intake ducts being housed in the dirty side chamber, engagement receiving portions are formed on a ceiling of the dirty side chamber, and the engaging portions are engaged with the engagement receiving portions, whereby the intake ducts are fixed.

9. The air cleaner device for a vehicle according to claim 1 ,
wherein a fuel tank is mounted on an upper portion of the vehicle body frame of the vehicle; and
the air cleaner case is disposed between a head pipe of the vehicle body frame and the fuel tank, and the intake ports of the intake ducts are opened to a rear of the air cleaner case, and are disposed more to a front than a rear end portion of the air cleaner case.

10. The air cleaner device for a vehicle according to claim 1 ,
wherein a fuel tank is mounted on an upper portion of the vehicle body frame of the vehicle; and
the air cleaner case is disposed between a head pipe of the vehicle body frame and the fuel tank, and the intake ports of the intake ducts are disposed so as to be opened to a front of the air cleaner case.

11. The air cleaner device for a vehicle according to claim 1 ,
wherein the air cleaner case is divided into an upper side case half body and a lower side case half body, the filter element is disposed between the upper side case half body and the lower side case half body, the dirty side chamber is defined within the upper side case half body, and the clean side chamber is defined within the lower side case half body;
the upper side case half body of the air cleaner case is formed so as to be longer in a vehicle width direction than in a forward-rearward direction of the vehicle; and
the filter element has a plate shape, and is disposed such that a longitudinal direction of the filter element is parallel to the vehicle width direction.

12. The air cleaner device for a vehicle according to claim 11 , wherein an attachment opening for attaching an intake air temperature sensor is formed in an upper rear portion of the upper side case half body of the air cleaner case, and the intake air temperature sensor is disposed in a vicinity of either one of the discharge ports of the intake ducts forming the left-right pair.

13. The air cleaner device for a vehicle according to claim 1 , wherein the intake ducts are formed such that lengths of the intake ducts from air cleaner case connecting portions attached so as to penetrate the air cleaner case to the discharge ports are longer than lengths of the intake ducts from the air cleaner case connecting portions to the intake ports.

14. The air cleaner device for a vehicle according to claim 1 , wherein engaging portions are formed on parts of the intake ducts, the parts of the intake ducts being housed in the dirty side chamber, engagement receiving portions are formed on a ceiling of the dirty side chamber, and the engaging portions are engaged with the engagement receiving portions, whereby the intake ducts are fixed.

15. An air cleaner device for a vehicle comprising:
an air cleaner case having a filter element therein;
said air clearer case being partitioned into a dirty side chamber and a clean side chamber;
a plurality of intake ducts for leading ambient air into the dirty side chamber of the air cleaner case, the intake ducts forming a left-right pair;
wherein the intake ducts forming the left-right pair have intake ports opened outside side portions of the air cleaner case, and paths of the intake ducts leading to discharge ports, paths housed within the dirty side chamber include bent portions;
the discharge ports of the intake ducts forming the left-right pair are disposed so as to be oriented to a central side

Assignees

• Honda Motor Co Ltd

Inventors

• Abe Ryuichi
• Kinoshita Ryosuke

Classifications

• F02M35/048

  Arranging or mounting on or with respect to engines or vehicle bodies · CPC title

• F02M35/162

  Motorcycles; All-terrain vehicles, e.g. quads, snowmobiles; Small vehicles, e.g. forklifts · CPC title

• F02M35/10144

  Connections of intake ducts to each other or to another device · CPC title

• B62K19/48

  Fairings forming part of frame · CPC title

• F02M35/10013

  Means upstream of the air filter; Connection to the ambient air · CPC title