FIELD OF INVENTION:

The present invention relates to ‘Highly Fuel efficient tractor for Haulage &Agri Applications’ where an economy mode for running of Tractor is available in which it will consume upto 40% less fuel in Haulage applications &upto 30% less fuel in Agri applications with the same productivity.

BACKGROUND/ PRIOR ART:

Today in haulage applications, all tractors run at Flyup or Higher RPM for both loaded and unloaded conditions. However, we need less power to drive the tractor in unloaded/Moderate Loaded conditions. But If we see the performance curve of Engine, when we run the tractor at high idle RPM in unloaded/moderate loaded conditions BSFC will increase due to high friction losses resulting in high fuel consumption. Also if we will get suitable speeds to run the tractor at Lower ERPM, We cannot operate due to very less torque available at lower engine RPM’s. So with this economy mode, we will get both Power & adequate speed to drive the tractor in Unloaded/Moderate Loaded conditions @20-40% Lesser ERPM.

Today in Agri applications, all tractors run @~70-95% of rated ERPM based on implement. Tractor normally operates @ 80-95% of rated ERPM for mild loading applications & operates @ 70-85% of rated ERPM for heavy loading applications. For normal loading conditions, if same power is available in economy mode at 10-20% lesser engine operating RPM with same productivity than it will consume upto 30% of less fuel due to less friction losses at less engine RPM.

This invention relates to a complete tractor where a special ‘Economy’ mode for running the tractor at lesser engine RPM is available with the same productivity.

OBJECTS OF INVENTION:

An object of this invention is to propose highly fuel efficient vehicle for haulage and agriculture which overcomes drawbacks of prior art.

The primary objective of the present invention is to save fuel & reduce engine emission during such applications with same productivity. It will result in better environment and healthy future for young generation.Therefore, the proposed highly fuel efficient vehicle for haulage and agriculture saves fuel and reduces engine emission.

Another object of this invention is to propose highly fuel efficient vehicle for haulage and agriculture which is not complicated in design.

Further object of this invention is to propose highly fuel efficient vehicle for haulage and agriculture which works efficiently.

Still further object of this invention is to propose highly fuel efficient vehicle for haulage and agriculture which runs at lower engine RPM maintaining the same productivity.

At the outset of the description that follows, it is to be understood that the ensuing description only illustrates a particular form of this invention. However, such a particular form is only an exemplary embodiment and is not intended to be taken restrictively to imply any limitation on the scope of the present invention.

STATEMENT OF INVENTION

The invention is aimed at running the tractor at Lower Engine ERPM for such applications, such that the tractors will consume less fuel at same productivity.

BRIEF DESCRIPTION OF FIGURES

The invention of ‘Highly Fuel efficient tractor for Haulage &Agri Applications’ is shown and described with reference to the illustrative drawings. It should be clearly understood, that the drawings are given purely for the purpose of explanation and exemplification only, and none of them are intended to be limitative of the scope of the present invention in any way, since the scope of the present invention is to be defined solely by the legitimate and proper scope of the appended claims. The parts and features of the ‘Highly Fuel efficient tractor for Haulage &Agri Applications’ are explained clearly in the figures thereof, as given in the sequence below.

Fig. 1: Existing Tractor Layout.

Fig. 2.1 & 2.2: Proposed Tractor Layout with Economy mode for Haulage &Agri applications

Fig 3: ERPM restriction in Economy mode through Mechanical Linkages & other possible methods

Fig 4: Possible Transmission layouts for new Concept.

DESCRIPTION OF INVENTION WITH RESPECT TO DRAWINGS

The present invention aims at saving the fuel & reduces engine emission during the haulage &Agri applications with same productivity. It will result in better environment and healthy future for young generation.

The present invention makes a disclosure regarding highly fuel efficient tractor for haulage and agriculture.
Figure -1 shows the existing Tractor layout where we get suitable speeds for HAULAGE @ Flyup or Higher ERPM&Agri @70-95% of Rated ERPM with proper selection of gear levers through transmission.

Figure -2.1 shows the proposed Tractor layout where we get suitable speeds for haulage application @ ~20-40% Lesser ERPM. This can be achieved by addition of new drive train/modification in existing drive train where we will get same speeds at lesser engine RPM what we will get earlier at higher speeds.

Figure -2.2 shows the proposed Tractor layout where we get suitable speeds for Agri application @ ~10-20% Lesser operating ERPM. This can be achieved by addition of new drive train/modification in existing drive train where we will get same speeds at lesser engine RPM what we will get earlier at higher speeds.

After shifting to this mode, simultaneously it will be also ensured that engine high idle rpms are limited in economy mode otherwise it will result in very high tractor speeds and results in chances of accident.
After shifting to economy mode, Engine fly up RPM’s will be restricted to ~75-90% of Engine Rated RPM and same can be made through systems as shown in Figure 3.

• Overdrive section can be placed anywhere in Driveline. There are total 6 possible ways of placing Overdrive section in Transmission Layout (e.g. ABC, CAB, ACB etc)
• Also it is possible that in Transmission there is no Range Section ‘B’ and it’s a combination of only A & C and same can placed in 2 possible ways (AC, CA)
• Also there can be any no. of reductions in all 3 Sections A(Forward & Reverse),B,C
• Reductions in all sections can be done by Gears, Hydraulically, Pneumatically, Electrically & Electronically etc
• With Mechanical linkages, we are restricting the movement of FIP throttle control lever mechanically. FIP Throttle control lever linkage can be controlled also by ELECTRICAL, ELECTRO-MECHANICAL, PNEUMATICAL & HYDRAULIC systems.However there is option to use Electronic CRDI also to control the ERPM through ECU without any linkages in FIP. Control mode restrictions already programmed in ECU.

CLAIMS:
WE CLAIM:

1. A method of saving fuel & reducing engine emission during the haulage &Agri applications with same productivity comprising an economy mode with suitable speeds for haulage application is @ ~20-40% Lesser ERPM; wherein said method achieves said speed by addition of new drive train/modification in existing drive train.
2. A method of saving fuel as claimed in Claim1; wherein said economy mode suitable speeds for Agri application is@ ~10-20% Lesser operating ERPM is achieved by addition of new drive train/modification in existing drive train.
3. A method of saving fuel as claimed in Claim1; wherein said economy mode ensures that engine high idle rpms are limited.
4. A method of saving fuel as claimed in Claim1; wherein said economy mode, Engine fly up RPM’s will be restricted to ~75-90% of Engine Rated RPM and same can be made through systems.
5. A method of saving fuel as claimed in Claim1; wherein said method further comprises of mechanical linkages restricting the movement of FIP throttle control lever mechanically.
6. A method of saving fuel as claimed in Claim 5; wherein said FIP Throttle control lever linkage can be controlled also by ELECTRICAL, ELECTRO-MECHANICAL, PNEUMATICAL & HYDRAULIC systems.
7. A method of saving fuel as claimed in Claim 5; wherein said methoduse Electronic CRDI to control the ERPM through ECU without any linkages in FIP; wherein said Control mode restrictions are already programmed in ECU.

Date: 18.02.2017 Sudarshan Kumar Bansal
Registered Patent Agent
(IN/PA/353)