Engine

Patent metadata

Field	Value
Publication number	US-10844809-B2
Application number	US-201816490455-A
Country	US
Kind code	B2
Filing date	Feb 8, 2018
Priority date	Mar 22, 2017
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

An engine includes fuel system components provided on a cylinder head, a purge control valve that controls an amount of evaporated fuel purged to a portion of an intake passage on a downstream side of a throttle valve, and intake pipes that form the portion of the intake passage on the downstream side of the throttle valve and extend in a cylinder array direction, in which the purge control valve is disposed in front of the intake pipes and the fuel system components are disposed on an opposite side of the purge control valve across the intake pipes in vehicle front view or vehicle side view.

First claim

What is claimed is:

1. An engine comprising:
a fuel system component provided on a cylinder head;
a purge control valve configured to control an amount of evaporated fuel purged from a canister to a portion of an intake passage on a downstream side of a throttle valve; and
an intake pipe that forms the portion of the intake passage on the downstream side of the throttle valve, the intake pipe extending in a cylinder array direction,
wherein the purge control valve is disposed in front of the intake pipe and the fuel system component is disposed on an opposite side of the purge control valve across the intake pipe in vehicle front view or vehicle side view.

2. The engine according to claim 1 , wherein
the intake pipe that forms the portion of the intake passage on the downstream side of the throttle valve includes
a main air intake pipe that is connected to a supercharger and extends in the cylinder array direction, and
a bypass air intake pipe that branches from the main air intake pipe to bypass the supercharger and extends in the cylinder array direction,

the bypass air intake pipe extends in the cylinder array direction above the main air intake pipe, and
the purge control valve is provided to purge the evaporated fuel into the main air intake pipe.

3. The engine according to claim 2 , wherein
an evaporated fuel vapor inlet related to the purge control valve is opened in a portion of the main air intake pipe on an upstream side of the supercharger, and
the bypass air intake pipe branches from a portion of the main air intake pipe on the upstream side of the evaporated fuel vapor inlet and is connected to the main air intake pipe on the downstream side of the supercharger.

4. The engine according to claim 3 , wherein
the evaporated fuel vapor inlet is opened in an upper portion of the intake pipe that forms the portion of the intake passage on the downstream side of the throttle valve.

5. The engine according to claim 4 , wherein
the purge control valve has an outflow connection pipe projecting from a valve body, and
the outflow connection pipe is directly connected to the intake pipe that forms the portion of the intake passage on the downstream side of the throttle valve.

6. The engine according to claim 3 , wherein
the purge control valve has an outflow connection pipe projecting from a valve body, and
the outflow connection pipe is directly connected to the intake pipe that forms the portion of the intake passage on the downstream side of the throttle valve.

7. The engine according to claim 2 , wherein
the evaporated fuel vapor inlet is opened in an upper portion of the intake pipe that forms the portion of the intake passage on the downstream side of the throttle valve.

8. The engine according to claim 7 , wherein
the purge control valve has an outflow connection pipe projecting from a valve body, and
the outflow connection pipe is directly connected to the intake pipe that forms the portion of the intake passage on the downstream side of the throttle valve.

9. The engine according to claim 2 , wherein
the purge control valve has an outflow connection pipe projecting from a valve body, and
the outflow connection pipe is directly connected to the intake pipe that forms the portion of the intake passage on the downstream side of the throttle valve.

10. The engine according to claim 1 , wherein
the evaporated fuel vapor inlet is opened in an upper portion of the intake pipe that forms the portion of the intake passage on the downstream side of the throttle valve.

11. The engine according to claim 10 , wherein
the purge control valve has an outflow connection pipe projecting from a valve body, and
the outflow connection pipe is directly connected to the intake pipe that forms the portion of the intake passage on the downstream side of the throttle valve.

12. The engine according to claim 1 , wherein
the purge control valve has an outflow connection pipe projecting from a valve body, and
the outflow connection pipe is directly connected to the intake pipe that forms the portion of the intake passage on the downstream side of the throttle valve.

Assignees

• Mazda Motor

Inventors

• Hirata Toshihiko
• Sakamoto Keita

Classifications

• B60K2015/03514

  with vapor recovery means · CPC title

• F02M35/10163

  having air intakes specially adapted to selectively deliver naturally aspirated fluid or supercharged fluid · CPC title

• F02M25/0836

  Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold · CPC title

• F02M39/00

  Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements (fuel-injection apparatus in which injection pumps are driven, or injectors are actuated, by the pressure in engine working cylinders, or by impact of engine working piston F02M49/00; arrangements of injectors F02M61/14) · CPC title

• F02B33/36 Primary

  of positive-displacement type · CPC title