Unlock instant, AI-driven research and patent intelligence for your innovation.

Combustion type fastener driving device

A power-driven, machine-tool technology, applied in the direction of hand tools, hand-held tools, and nailing tools suitable for fasteners, can solve problems such as insufficient interference, suboptimal energy utilization, and high emissions

Inactive Publication Date: 2009-08-19
HILTI AG
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of this solution is that, on the one hand, the energy utilization is not optimal, since the control does not or only insufficiently take disturbance effects into account
On the other hand, the emissions in terms of undesired exhaust components like e.g. carbon monoxide can be high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Combustion type fastener driving device
  • Combustion type fastener driving device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] according to figure 1 The hand-held, internal combustion-powered installation tool 10 has a single-part or multi-part housing, generally designated 11, in which a drive device 12 drivable by means of an air-fuel mixture is arranged. A fastening element, such as a nail, a bolt, etc., can be driven into a workpiece by means of the drive device 12 . The fasteners can be stored, for example, in a storage device on the setting tool 10 .

[0019] The drive device also includes a combustion chamber 15 and a pilot cylinder 13 in which a mounting piston 14 is arranged axially displaceable. The combustion chamber 15 is surrounded by a combustion chamber sleeve 28 in the illustrated initial state and axially on a first end by the mounting piston 14 and an annular combustion chamber wall 29 and on a second end. It is delimited by a combustion chamber rear wall 30 designed as a cylinder head.

[0020] An exhaust fan 16 arranged in the combustion chamber 15 and driven by a motor 1...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The tool (10) has an ignition device (26) generating ignition spark in a combustion chamber (15), and a metering device (21) delivering fuel to the combustion chamber. Control electronics (25) controls the ignition device and metering device, and a set of sensors senses the operational parameters of the setting tool, and is connected with the control electronics, where the sensors include a flue gas sensor (31) for measuring a flue gas component. The flue gas sensor is formed as lambda probe to measure the content of residual oxygen in the flue gas.

Description

technical field [0001] The invention relates to an internal combustion-powered setting tool of the type stated in the preamble of claim 1 . Background technique [0002] Setting tools of this type have a combustion chamber in which a portion of liquefied gas or another volatile fuel with an oxidizing agent such as, for example, ambient air can be combusted. A mounted piston which is displaceably guided on a piston guide is driven by means of combustion energy. [0003] No. 6,123,241 discloses an internal combustion-powered installation tool which has a control electronics for controlling ignition and fuel injection. In this case, the installation tool has sensors for measuring the ambient air pressure and fuel pressure. The metering and metering of fuel from a fuel container to the combustion chamber is controlled by control electronics using data recorded by sensors, for which purpose the control electronics cooperate with a metering valve for the fuel. [0004] The disa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B25C1/08B25B31/00
CPCB25C1/08
Inventor T·迪特里希P·哈尼曼
Owner HILTI AG