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Opposed Piston Engine Layout in Heavy Trucks

A technology of opposed pistons and engines, which is applied in the direction of machines/engines, power plants, vehicle components, etc., and can solve problems such as increasing engine power loss and limiting engine efficiency

Active Publication Date: 2018-09-07
ACHATES POWERS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cylinder length is constrained by the space between the truck's side members
Thus, the horizontal orientation of the cylinders inherently limits the level of power achievable with these engines when fitted in a standard heavy truck bed
Furthermore, the rocker linkage arrangement necessary for a single crankshaft architecture increases the amount of engine power loss due to friction, thereby limiting the achievable efficiency of TS engines

Method used

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  • Opposed Piston Engine Layout in Heavy Trucks
  • Opposed Piston Engine Layout in Heavy Trucks
  • Opposed Piston Engine Layout in Heavy Trucks

Examples

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Embodiment Construction

[0022] This description is directed to the layout of an opposed-piston engine in a heavy-duty truck that includes a bed and front wheel assembly, the bed having two spaced apart frame rails extending in the longitudinal direction of the truck between the front and rear ends, the front wheel The assembly has an axle attached to the frame rail. The opposed-piston engine is supported on frame rails and positioned between the front end and the axle. In one embodiment, an opposed-piston engine includes a cylinder assembly having a longitudinal axis disposed between frame rails and oriented perpendicular to a longitudinal direction. In another embodiment, the opposed piston engine includes a bank of cylinders disposed in the space between the frame rails and extending longitudinally of the truck.

[0023] refer to figure 1 with Figure 5 The front (front) portion of the heavy truck 10 includes a cab 12 having a base 14 with a frame beam 16 extending in the longitudinal direction ...

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Abstract

An engine placement configuration for a heavy-duty truck includes a chassis having two spaced-apart frame rails running in a longitudinal direction of the chassis, between front and rear ends, and a front wheel assembly with an axle attached to the frame rails. An opposed-piston engine is supported on the frame rails and positioned between the front end and the axle. The opposed-piston engine includes a cylinder assembly with a longitudinal axis disposed between the frame rails and oriented vertically with respect to the longitudinal direction. Alternatively, the opposed-piston engine includes a row of cylinders disposed between the rails and running in the longitudinal direction.

Description

technical field [0001] The invention relates to vehicles equipped with two-stroke cycle opposed-piston engines. In particular, the invention includes the layout of multi-cylinder opposed-piston engines vertically arranged in the structure of a vehicle, in particular such a layout of a heavy truck. Background technique [0002] A two-stroke cycle engine is an internal combustion engine that completes its power cycle with a single complete rotation of the crankshaft and two strokes of a piston connected to the crankshaft. One example of a two-stroke cycle engine is an opposed-piston engine in which a pair of pistons are oppositely disposed in bores of a cylinder for reciprocating sliding movement therein. Each cylinder has an exhaust port and an intake port. Each port includes one or more arrays or sequences of openings disposed circumferentially in the cylinder wall proximate a respective end of the cylinder. The reciprocating motion of the piston controls the operation of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K5/02F02B75/28
Inventor K·B·富卡
Owner ACHATES POWERS INC
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