EI 02G001
CEMP-E
01 July 1997
Table 3-1 (concluded)
Hammer
Description
Advantages
Disadvantages
Type
External Combustion Hammers (Continued)
Double-Acting
Similar to
High-frequency (80 blows
Relatively heavy hammer
Diesel
single-acting
per minute) blow rate.
weight relative to
diesels, except
or vacuum in top of hammer
single-acting diesels.
that trapped air
stores and releases
No external power
Atomized fuel system can
energy during
source required.
be difficult to service.
operation.
3-12
Previous Page
