FIELD OF INVENTION
This invention relates to an improved excavator.
PRIOR ART
As such excavator is known to have been provided with a cabin for its
operator. The cabin is having an openable front glass. However, only
upper part of the same is openable with fixed lower part. Further, the
cabin is having a console, which is fixed. The excavator is provided with
power mode only which can be set with the help of a switch. Further, top
cover of the excavator is perforated, which is expensive. Thus, the known
excavator is not user friendly and cost effective.
OBJECTS OF THE INVENTION
The primary object of the present invention is to propose an improved
excavator which overcomes disadvantages of the prior art.
Another object of the present invention is to propose an improved
excavator which prevents tempering of the engine.
Further object of the present invention is to propose an improved
excavator having low maintenance cost.
Yet another further object of the present invention is to propose an
improved excavator which is efficient.
Still another object of the present invention is to propose an improved
excavator which is cost effective.
Yet another further object of the present invention is to propose an
improved excavator which provides security to operator.
STATEMENT OF INVENTION
According to this invention there is provided an improved excavator
comprising of a cabin having a slidable front glass and a rotatable
console, an electronic device and top cover with anti skid pattern, which
is having atleast two operational modes.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Further objects and advantages of this invention will be more apparent
from the ensuing description when read in conjunction with the
accompanying drawings and wherein:
Fig. 1 shows exploded view of the front glass.
Fig. 2 shows assembled view of the front glass hood on machine.
Fig. 3 shows the exploded view of the rotatable front console.
Fig. 4 shows the assembled view of the front console on machine.
Fig. 5 shows the block diagram of the ECU and its inputs.
Fig. 6 shows the gauges and instrument cluster displaying
signals/warnings.
Fig. 7 shows the view of antiskid patterns on machine.
Fig .8 shows the assembled view of the lever on machine.
Fig. (8 shows the exploded view of lever.
DETAILED DESCRIPTION OF THE INVENTION WITH REFERENCE TO
THE ACCOMPANYING DRAWINGS
Sliding front glass in cabin
The slidable front glass of the cabin is partially or fully openable by
sliding upper part onto the ceiling. However, for full opening, lower part
is followed by clamping, which is further slided onto the celing.
Referring to the fig. 1 front glass (item 13) with frame (item 12) is fixed
onto LH & RH slider (14 & 15), wherein a clamp is provided in order to
lock the glass frame at any position.
Rotatable console in Cabin
The console provided in the cabin is rotatable in atleast two direction
according to the requirement of operator.
Referring to the Fig . 1. Rotatable console (item 2) is provided onto the RH
side cabin frame wherein the mounting clamps allow it to pivot to the
shaft and to rotate to adjust to angle of viewing comfortable for the
operator.
Electronic control device for Monitoring Engine
The electronic control device always monitors the engine and prevents
the engine from tampering.
The electronic device stops operation of the engine instantly in case any
specific technical fault is detected with the engine.
It receives four inputs from the engine mounted sensors and switches,
engine water temperature, engine oil pressure, Alternator frequency and
battery charging input from alternator. All these signals are fed to ECU
and instrument cluster simultaneously. If any of the above problems
exists, the warning signal in the instrument cluster glows with audible
warning signals in the instrument cluster glows with audible warning to
alert the operator about the problem and time is provided to operator for
bringing the machine to safe mode parking mode. If the machine is not
switched off by the operator within the time period, the ECU shuts down
the engine automatically after that period. This fool proof function
prevents failure/seizure of engine. All the above four inputs are also
utilized by ECU to sense the actual engine running hours and in turn it
records the actual machine operation hours in a secret memory. These
hours are also recorded in the hour counter installed in the panel for
instrument. It is operator tries to disconnect all these signals input
. coming from engine, the ECU detects the problem and shut off the
engine. Hence, this ECU makes the engine tamper proof and a protection
devise as well.
Referring to the fig. 9 & 10, Electronic control unit (ECU) gets input from
various sensors (engine coolant temperature, oil pressure, alternator
frequency alternator charging etc.) mounted on engine and feed the data
to the ECU as to the warning displays. If and thing is above the specified
limit, ECU gives warning signal to display it on instrument cluster which
is mounted on front console panel. If engine is continued for running
more than a minute, ECU gives signal to the engine shut off solenoid
value (see fig 10) to shut off the engine, which will stop automatically.
Hence, it prevents the engine from seizure and keeps the engine safe
always. All the above 4 inputs are also utilized by ECU to sense the
actual engine running hours and in turn it records the actual machine
operation hours in a secret memory. These hours are also recorded in the
hour counter installed in the panel for instrumentation. If the operator
tries to disconnect all these signals input coming from engine, the ECU
detects the problem and shuts off the engine. This fool proof innovation
is very helpful to the customers to have long engine life and record the
true engine running hours. The PWM output port is provided in the
wiring harness as an interface with the ECU to check the actual hours
stored in the secret memory of ECU.
Anti skid pattern on top covers
The top covers provided with anti skid pattern, which is cost effective.
These are described in the accompanying figure 7.
Two operational modes
The present invention can be operated in two operational modes, which
provides better productivity and duel consumption to the operator
depending upon the working conditions.
These two operational modes are "power mode" and "economy mode". In
case of power mode, the excavator provides full power and in case of
economy mode, it provides best economy with minimum consumption of
fuel. Each of the modes is set with the regulation of pump and setting of
RPM. Further, the modes are easily adjustable and interchangeable.
In the first operation mode "Power Mode", the excavator is fitted with the
hand throttle lever which regulates the engine throttle and while pulling
the lever RPM of the engine can be controlled. This assembly is
essentially fitted with throttle lever and a proximity switch is fine tuned
and adjusted to specific RPM. When the throttle lever is operated and the
Engine RPM goes above the specified limit, the switch gets operated and
gives signal to ECU. ECU senses this signal and in turn gives supply to
pump regulator solenoid valve. When the valve is operated the pump
regulated to maximum output setting thereby resulting in the maximum
hydraulic flow available to work for tougher applications. The
instruments panel is provided with a warning light "SumbolP" to indicate
that the machine is operating in the power mode.
The second mode "Economy Mode" is operated by moving the engine
throttle lever towards reducing the engine RPM and when engine RPM is
lowered than the specified limit the proximity switch fitted on the lever
disconnects the signal to ECU. ECU in turn sensing the change in
condition of the signal disconnects the power supply to pump regulation
solenoid valve. This will deregulate the pump to giver lesser flow which is
just enough for the required operation. This regulation reduces the load
on the engine required by the hydraulic system and when combined with
the reduced engine RPM will provided the lowest fuel consumption.
Hence, it is giving the optimum output with highest fuel efficiency.
Further, it is provided with a warning light "SymbolE" given in the
instrument panel to show machine is operating in the economy mode.
The excavator is having two operation modes namely power and
economy, in case of power mode, the excavator provides full power and
in case of economy mode, it provides best economy with minimum
consumption of fuel. Each of the modes is set with the regulation of
pump and setting of RPM. Further, the modes are easily adjustable and
interchangeable.
These are described in the figures 8 and 9.
It is to be noted that the present invention is susceptible to
modifications, adaptations and changes by those skilled in the art. Such
variant embodiments employing the concepts and features of this
invention are intended to be within the scope of the present invention,
which is further set forth under the following claims:-
WE CLAIM
1. An improved excavator comprising of a cabin having a slidable
front glass and a rotatable console, an electronic device and top
cover with anti skid pattern, which is having atleast two
operational modes.
2. An improved excavator as claimed in claim 1 wherein the front
glass is partially or fully openable in which the front glass with
frame is fixedly provided onto left hand and right hand slider.
3. An improved excavator as claimed in claim 2 wherein the front
glass is provided with a claim.
4. An improved excavator as claimed in any of the preceding claims
wherein in console is rotatable in atleast two directions and
pivoted onto the right hand side cabin frame.
5. An improved excavator as claimed in any of the preceding claims
wherein the electronic device monitors the engine and prevents the
engine from tampering such as herein described.
6. An improved excavator as claimed in any of the preceding claims
wherein the excavator can be operated in two operational modes
namely powder mode and economy mode such as herein described
wherein the modes are easily adjustable and interchangeable.
7. An improved excavator as claimed in claim 6 wherein in case of
power mode, the excavator provides fuel power and in case of
economy mode, it provides best economy with minimum
consumption of fuel.
8. An improved excavator substantially as herein described with
reference to the accompanying drawings.

This invention relates to an improved excavator comprising of a cabin
having a slidable front glass and a rotatable console, an electronic device
and top cover with anti skid pattern, which is having atleast two
operational modes.