Engine device
AssigneeYanmar Co., Ltd.
InventorsMasato SUGIMOTO, Kota TAKAMATSU
Life of this patent
Estimating the term…
Abstract
An engine device having gas injectors attached to an intake manifold fixed to a side surface of a cylinder head. A fuel gas injected from the gas injectors is premixed in the intake manifold, and the resulting gas is supplied to a plurality of cylinders and ignited by ignition devices. The intake manifold has a configuration in which a plurality of intake branch pipes communicating with the cylinders are branched from an intake collecting pipe at an air supply side. The intake branch pipes include bent portions. In the bent portions of the intake branch pipes, inside inner walls near the cylinder head are bent at an acute angle.
Claims8
An engine device including:
- a cylinder head;
- an intake manifold fixed to a side surface of the cylinder head;
- and a gas injector attached to the intake manifold, the engine device being configured such that a fuel gas injected from the gas injector is premixed in the intake manifold, supplied into a plurality of cylinders, and ignited by an ignition device, wherein:
- the intake manifold has a configuration in which a plurality of intake branch pipes communicating with the cylinder are branched from an intake collecting pipe at an air supply side, each of the intake branch pipes having a bent portion;
- and
- in the bent portion of each of the intake branch pipes, an inside inner wall near the cylinder head is bent at an acute angle.
Dependencies are inferred from the claim text.