Refuse truck with helical pump

Patent metadata

Field	Value
Publication number	US-12583671-B2
Application number	US-202318143526-A
Country	US
Kind code	B2
Filing date	May 4, 2023
Priority date	May 5, 2022
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

A refuse vehicle includes a chassis, an energy storage device, a body, a first electric power take-off system, and a second electric power take-off system. The energy storage device is supported by the chassis and is configured to provide electrical power to a prime mover. Activation of the prime mover selectively drives the refuse vehicle. The body is supported by the chassis. The first electric power take-off system is coupled to at least one of the body and the chassis, and includes a first motor that is configured to drive a helical gear pump to convert electrical power received from the energy storage device into hydraulic power. The second electric power take-off system is coupled to at least one of the body and the chassis, and includes a second motor that is configured to drive the helical gear pump to convert electrical power received from the energy storage device into hydraulic power.

First claim

What is claimed is:

1 . A refuse vehicle comprising:
a chassis; an energy storage device supported by the chassis and configured to provide electrical power to a prime mover, wherein activation of the prime mover selectively drives the refuse vehicle; a body for storing refuse therein supported by the chassis; a first electric power take-off system coupled to at least one of the body and the chassis, the first electric power take-off system including a first motor configured to drive a first helical gear pump and thereby convert electrical power received from the energy storage device into hydraulic power; a second electric power take-off system coupled to at least one of the body and the chassis, the second electric power take-off system including a second motor configured to drive a second helical gear pump and thereby convert electrical power received from the energy storage device into hydraulic power; and a valve movable between a first position and a second position, wherein when the valve is positioned in the first position the first electric power take-off system is fluidly independent of the second electric power take-off system, and wherein when the valve is positioned in the second position the first electric power take-off system is fluidly coupled with the second electric power take-off system.

2 . The refuse vehicle of claim 1 , wherein the first electric power take-off system and the second electric power take-off system are configured to operate independent hydraulic circuits.

3 . The refuse vehicle of claim 2 , wherein the first electric power take-off system includes a first inverter configured to convert direct current electrical power received from the energy storage device into alternating current electrical power to drive the first motor.

4 . The refuse vehicle of claim 2 , wherein the first electric power take-off system is configured to provide hydraulic power to a lift system of the refuse vehicle.

5 . The refuse vehicle of claim 1 , wherein the first electric power take-off system is selectively electrically coupled to the energy storage device using a first disconnect, and wherein the second electric power take-off system is selectively electrically coupled to the energy storage device using a second disconnect.

6 . The refuse vehicle of claim 1 , wherein each of the first electric power take-off system and the second electric power take-off system are selectively electrically coupled to the energy storage device using a disconnect, wherein the first motor and the second motor are disabled with the first electric power take-off system and the second electric power take-off system decoupled, via the disconnect, from the energy storage device.

7 . The refuse vehicle of claim 1 , further comprising a third electric power take-off system coupled to at least one of the body and the chassis, the third electric power take-off system including a third motor configured to drive a third helical gear pump and thereby convert electrical power received from the energy storage device into hydraulic power.

8 . The refuse vehicle of claim 7 , wherein each of the first electric power take-off system, the second electric power take-off system, and the third electric power take-off system are selectively electrically coupled to the energy storage device using a disconnect.

9 . The refuse vehicle of claim 7 , wherein the first electric power take-off system is selectively electrically coupled to the energy storage device using a first disconnect, wherein the second electric power take-off system is selectively coupled to the energy storage device using a second disconnect, and the third electric power take-off system is selectively electrically coupled to the energy storage device using a third disconnect.

10 . A vehicle comprising:
a chassis; an energy storage device supported by the chassis and configured to provide electrical power to a prime mover, wherein activation of the prime mover selectively drives the vehicle; a body defining a storage compartment supported by the chassis; a first electric power take-off system coupled to the body, the first electric power take-off system including a first motor configured to drive a first helical gear pump and thereby convert electrical power received from the energy storage device into hydraulic power; a second electric power take-off system coupled to the chassis, the second electric power take-off system including a second motor configured to drive a second helical gear pump and thereby convert electrical power received from the energy storage device into hydraulic power; and a valve movable between a first position and a second position, wherein when the valve is positioned in the first position the first electric power take-off system is fluidly independent of the second electric power take-off system, and wherein when the valve is positioned in the second position the first electric power take-off system is fluidly coupled with the second electric power take-off system.

11 . The vehicle of claim 10 , wherein the first electric power take-off system and the second electric power take-off system are configured to operate independent hydraulic circuits.

12 . The vehicle of claim 10 , wherein the first electric power take-off system includes a first inverter configured to convert direct current electrical power received from the energy storage device into alternating current electrical power to drive the first motor.

13 . The vehicle of claim 10 , wherein a disconnect is configured to selectively decouple at least one of the first electric power take-off system and the second electric power take-off system from the energy storage device.

14 . The vehicle of claim 10 , wherein the first electric power take-off system is configured to supply hydraulic power to operate a compactor positioned on the body.

15 . The vehicle of claim 10 , wherein each of the first electric power take-off system and the second electric power take-off system are independently electrically coupled to the energy storage device.

16 . The vehicle of claim 10 , further comprising a third electric power take-off system coupled to at least one of the body and the chassis, the third electric power take-off system including a third motor configured to drive a third helical gear pump and thereby convert electrical power received from the energy storage device into hydraulic power.

17 . A refuse vehicle comprising:
a chassis; an energy storage device supported by the chassis and configured to provide electrical power to a prime mover, wherein activation of the prime mover selectively drives the refuse vehicle; a receptacle for storing refuse therein supported by the chassis; a first electric power take-off system coupled to at least one of a body of the refuse vehicle and the chassis, the first electric power take-off system including a first motor configured to drive a first helical gear pump and thereby convert electrical power received from the energy storage device into hydraulic power; a second electric power take-off system coupled to at least one of the body and the chassis, the second electric power take-off system including a second motor configured to drive a second helical gear pump and thereby convert electrical power received from the energy storage device into hydraulic power; a valve movable between a first position and a second position, wherein when the valve is positioned in the first position the first electric power take-off system is fluidly independent of the second electric power take-off system,

Assignees

• Oshkosh Corp

Inventors

• WENTE Derek
• Wallin Jacob

Classifications

• B65F3/02

  with means for discharging refuse receptacles thereinto (conveyor construction B65G; loaders separate from vehicles B66F; fluid power control systems in general F15B) · CPC title

• B65F2003/025

  Constructional features relating to actuating means for lifting or tipping containers · CPC title

• B65F2003/0263

  Constructional features relating to discharging means · CPC title

• B65F3/06

  Arrangement and disposition of fluid actuators · CPC title

• B65F3/143 Primary

  Means facilitating the separation of the charging, distributing or compressing devices from the tank of refuse vehicles · CPC title