Fuel injection system for a saddle ride type four-wheel vehicle

• US 7,562,736 B2
• Filed: 02/04/2005
• Issued: 07/21/2009
• Est. Priority Date: 02/06/2004
• Status: Expired due to Fees

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Tsuruta, Yuichiro, Urano, Naoki, Eguchi, Masataka, Ito, Atsushi, Hotta, Kazuhito
• Primary Examiner(s): Dickson; Paul N
• Assistant Examiner(s): YEAGLEY, DANIEL S
• Application Number:
  US11/050,016
• Publication Number:
  US 20050173918A1
• Time in Patent Office: 1,628 Days
• Field of Search: 280/834, 280/835, 123/516, 180/291
• US Class Current: 180/291
• CPC Class Codes: B62J 35/00 Fuel tanks specially adapted for motorcycles or engine-assisted cycles; Arrangements thereof fuel tanks forming part of cycle frames B62K11/00; tanks in general B60K ; closure caps for fuel tanks B60K15/0406
• CPC Class Codes: B62J 37/00 Arrangements of fuel supply lines, taps, or the like, on motor cycles or engine-assisted cycles
• CPC Class Codes: B62K 5/01 Motorcycles with four or more wheels specially adapted for disabled riders B62K5/003
• CPC Class Codes: F01N 3/34 using air conduits or jet air pumps, e.g. near the engine exhaust port
• CPC Class Codes: F02D 33/003 Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus control of electrical fuel pumps F02D41/3082, controlling fuel flow to a common rail F02D41/3845; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
• CPC Class Codes: F02M 37/007 characterised by its use in vehicles, in stationary plants or in small engines, e.g. hand held tools
• CPC Class Codes: F02M 37/0076 Details of the fuel feeding system related to the fuel tank vehicle fuel tanks B60K15/03
• CPC Class Codes: F02M 37/103 Mounting pumps on fuel tanks
• CPC Class Codes: F02M 37/44 Filters structurally associated with pumps
• CPC Class Codes: F02M 37/46 Filters structurally associated with pressure regulators
• CPC Class Codes: F02M 39/005 Arrangements of fuel feed-pumps with respect to fuel injection apparatus F02M37/00 takes precedence
• CPC Class Codes: F02M 39/02 Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives
• CPC Class Codes: Y02A 50/20 Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies

Abstract

A saddle ride type four-wheel vehicle includes an electronic control type fuel injection system in a fuel supply system for an engine mounted thereon, wherein a fuel pump is disposed on the rear side relative to the rotational center axis of front wheels and on the front side relative to the engine.

Claims

1. A saddle ride four-wheel all-terrain vehicle having an electronic control fuel injection system in a fuel supply system for an air-cooled engine mounted thereon, said vehicle comprising:

a pair of front wheels having a rotational center axis defined therebetween;

a vehicle body frame including left-right pairs of upper pipes and lower pipes disposed at upper and lower portions of the body frame and extending in the front-rear direction of the vehicle;

a fuel tank disposed above a front side portion of the upper pipe of the vehicle frame;

a cooling fan for blowing air to the engine is located below the upper frame and between the rotational axis of the front wheels and the engine;

a fuel sump portion provided at a bottom center portion of the fuel tank and extending to a space located beneath the upper pipes of the vehicle frame and behind the cooling fan in the rear direction of the vehicle;

a fuel pump disposed on a rear side of the vehicle relative to the rotational center axis of front wheels and on a front side of the vehicle relative to said engine, and

a throttle body is disposed on a rear side of a cylinder head of said engine, wherein the fuel sump portion is approximately V-shaped in vehicle body side view and in vehicle body front view,

the fuel pump is disposed between the cooling fan and said engine, and

said engine is a traverse layout engine.

2. The saddle ride four-wheel vehicle according to claim 1, wherein said fuel pump, including a fuel take-out port of a fuel tank, is located in an area defined below a front extension line and a rear extension line of two fuel levels having a front-rear inclination of about 30°

.

3. The saddle ride four-wheel vehicle according to claim 1, wherein said fuel pump, including a fuel take-out port of a fuel tank, is located in an area defined below a front extension line and a rear extension line of two fuel levels having a left-right inclination of about 15°

.